Тепловой шкаф lg ошибка ch5

00

Text the 1, 2 or 3 digit fault code number only. I.e. If you see fault code CH07 on your indoor unit or R/Controller, only type 7 or 07 in your text message.

01

Indoor unit return air sensor fault. Disconnect sensor from PCB and measure resistance. 8 kOhm at 30C and 13 kOhm at 20C if not replace sensor

1

Indoor unit return air sensor fault. Disconnect sensor from PCB and measure resistance. 8 kOhm at 30C and 13 kOhm at 20C if not replace sensor

02

Indoor Pipe Sensor or Outdoor Sensor Assy fault, Open or Short. Disconnect from PCB and measure resistance. Air sensor = 10 kOhm at 25C, Pipe sensor = 5 kOhm at 25C. If not replace sensor.

2

Indoor Pipe Sensor or Outdoor Sensor Assy fault, Open or Short. Disconnect from PCB and measure resistance. Air sensor = 10 kOhm at 25C, Pipe sensor = 5 kOhm at 25C. If not replace sensor.

03

Remote controller comms error. Check wired correctly, if so check dipswitch in RC. Set to Sg for 1 unit, or Gr for group then reset power

3

Remote controller comms error. Check wired correctly, if so check dipswitch in RC. Set to Sg for 1 unit, or Gr for group then reset power

04

RAC Product = Heat Sink Sensor Error, Open/Short Cct or over 95C. Commercial Product = Condensate pump float switch risen. Check drain pan is empty, check pump is working OK. If no pump check blue jumper plug is inserted in socket CN Float.

4

RAC Product = Heat Sink Sensor Error, Open/Short Cct or over 95C. Commercial Product = Condensate pump float switch risen. Check drain pan is empty, check pump is working OK. If no pump check blue jumper plug is inserted in socket CN Float.

05

Comms Error, check your wiring, remove external pumps. Split/Multi — check volts from terminal N to 3 = 0 — 65 Vdc, Multi V — 4 Vdc terminals 3 and 4

5

Comms Error, check your wiring, remove external pumps. Split/Multi — check volts from terminal N to 3 = 0 — 65 Vdc, Multi V — 4 Vdc terminals 3 and 4

06

Indoor unit coil sensor fault. Disconnect from PCB measure resistance. 10 kOhm at 10C and 4 kOhm at 30C. if not replace sensor. Split = text 21

6

Indoor unit coil sensor fault. Disconnect from PCB measure resistance. 10 kOhm at 10C and 4 kOhm at 30C. if not replace sensor. Split = text 21

07

Multi Splits and Multi V = indoor unit is set to run in a different mode from the master indoor unit. Set ALL indoor units to cooling or ALL to heating to clear. Splits = Compressor Over Current (CT2), also see Code 06.

7

Multi Splits and Multi V = indoor unit is set to run in a different mode from the master indoor unit. Set ALL indoor units to cooling or ALL to heating to clear. Splits = Compressor Over Current (CT2), also see Code 06.

RAC Indoor unit BLDC Fan problem. This is caused by the Indoor fan being locked. Check fan motor is plugged in correctly, Electrically & Mechanically sound.

08

Check the fan motor turns freely, check the AC Voltage supplied to the fan motor, this will vary from 120 V ac at low speed to 170V AC at high speed. If no

Voltage is present the the PCB is faulty, if Voltage is present the fan motor will be Faulty.

RAC Indoor unit BLDC Fan problem. This is caused by the Indoor fan being locked. Check fan motor is plugged in correctly, Electrically & Mechanically sound.

8

Check the fan motor turns freely, check the AC Voltage supplied to the fan motor, this will vary from 120 V ac at low speed to 170V AC at high speed. If no

Voltage is present the the PCB is faulty, if Voltage is present the fan motor will be Faulty.

09

Split = Outdoor unit fan problem. Check Outdoor fan motor is plugged in, Electrically & Mechanically sound, if not replace motor, otherwise replace PCB. Multi V = Indoor unit EEPROM error — Replace the indoor unit PCB, and then make sure to do Auto addressing and input the address of central control.

9

Split = Outdoor unit fan problem. Check Outdoor fan motor is plugged in, Electrically & Mechanically sound, if not replace motor, otherwise replace PCB. Multi V = Indoor unit EEPROM error — Replace the indoor unit PCB, and then make sure to do Auto addressing and input the address of central control.

10

RAC Product: Compressor discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C, 168 kOhm at 30C. Multi Fdx & Multi V text 8

11

Multi V indoor unit not connected to an outdoor unit. Check comms wiring is correct, and check initialisation has been carried out correctly

12

RAC Product = EEPROM Sum Check Error, text 60 for help.

13

RAC Product = PSC (Reactor) Error, text 27 for help.

14

RAC Product = Compressor Phase Current Error

15

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

16

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

17

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

18

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

19

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

20

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

21

Inverter compressor run current high. Check compressor windings all equal 1 to 4 Ohms, Check to earth 50 MOhm minimum, check run current

22

Inverter compressor run current high. Check compressor windings all equal 1 to 4 Ohms . Check to earth 50 MOhm minimum, check run current

23

Inverter dc voltage low. Check dc voltage of capacitors 300 Vdc for 1Ph and 600 Vdc for 3Ph. If OK change outdoor inverter PCB

24

Splits and Multi Splits = High or low pressure trip. Low at 1 bar High at 35 bar check pressures. Multi V = High pressure trip.

25

Check power supply voltage to the outdoor unit is correct (1ph ?220 Vac ±10% or 3ph ?380 Vac ±10%). If OK, check fuses, if fuses are OK replace outdoor main PCB

26

Inverter compressor seized. Check compressor windings all equal resistance 1 to 4 Ohms, check to earth 50 MOhm minimum, check run current and Inverter outputs

27

Inverter current irregularity. Check inverter PCB, check reactor connections and its resistance is less than 1 ohm.

28

Inverter dc voltage too high. Check dc voltage of capacitors 300 Vdc for 1Ph and 600 Vdc for 3Ph. If OK change outdoor inverter PCB

29

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

30

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

31

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

32

Inverter compressor discharge temperature too high. If over 105°C, check refrigerant charge

33

Excessive rise of standard compressor discharge temperature. If over 105°C check refrigerant charge

34

Excessive high pressure rise, over 35 bar at HP sensor. Check pressures, check coils, and filters are clean check for OFN in system pipework

35

Excessive low pressure drop under 1 Bar at LP sensor. Check pressures, and check service valves open

36

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

37

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

38

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

39

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

40

Inverter ac current abnormal. Check compressor windings all equal resistance 1 to 4 Ohms, check to earth 50 MOhm minimum, check run current and inverter outputs

41

Inverter compressor discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C and 168 kOhm at 30°C.

42

Low pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 4 bar up to 5 Vdc = 32 bar

43

High pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 8 bar up to 2.5 Vdc = 37 bar

44

Outdoor unit air sensor fault. Disconnect from PCB and measure resistance. 8 kOhm at 30C and 13 kOhm at 20C. If OK replace PCB, if not replace sensor

45

Outdoor unit coil sensor fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor

46

Outdoor unit suction sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor

47

Compressor discharge sensor fault. Disconnect from PCB measure resistance. 237 kOhm at 20°C and 168 kOhm at 30°C. If OK replace PCB, if not replace sensor

48

Split/Multi Split = Outdoor unit discharge and air sensor both unplugged. Multi V = Outdoor unit coil sensor. Text 45 for diagnostics

49

Check power supply voltage to the outdoor unit is correct (1ph ?220 Vac ±10% or 3ph ?380 Vac ±10%). If OK check fuses, if fuses OK, replace outdoor main PCB

50

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

51

Unit mismatch. Check model number of units do not exceed maximum. Multi V — also check Sub outdoor unit dipswitch settings

52

Communication error between inverter PCB and main outdoor unit PCB. Check wiring fuses and LEDs . If OK either inverter or main PCB defective

53

Comms error indoor to outdoor unit. Check your wiring . Split and Multi — check voltage from terminal N to 3 = 0 — 65 Vdc, Multi V — 4 Vdc terminals 3 and 4

54

Reverse or open phase. Check all 3 phases are present and correct. If correct voltage appears at all three phases, swap any two to cure the fault

55

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

56

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

57

Comms error between outdoor main PCB and inverter PCB. Check wiring fuses and LEDs are lit. If OK either inverter or main PCB defective

58

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

59

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

60

Outdoor unit PCB EEPROM failure, try removing EEPROM and refitting if removable (possible contact fault), otherwise replace PCB if the EEPROM is non-removable.

61

Condenser coil over 65°C. Check coil and filters are clean and free from debris, and airflow is OK. Check system pressures for non-condesables

62

Inverter over 85°C. Check air flow across heat sink, check inverter tight to heatsink use thermal paste. Multi V — check inverter cooling fan

63

Multi F(DX) — «Cond. Pipe Sensor Temp. Low» (opposite to Error Code 61). Check Temperature/Resistance reading and replace sensor if found to be faulty. If sensor okay, check for cause of low temperature and rectify.

64

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

65

Outdoor unit inverter fin temperature sensor fault. Disconnect from PCB measure resistance. 8 kOhm at 30°C and 13 kOhm at 20°C

67

Outdoor Fan Motor siezed, or rotation sensing circuit failure. Check motor for mechanical and/or electrical failure, if okay replace pcb.

100

Excessive discharge temperature rise 105°C Sub condenser 1 standard compressor. Check refrigerant

101

Excessive discharge temperature rise 105°C Sub condenser 1 standard compressor. Check refrigerant

102

Excessive discharge temperature rise 105°C Sub condenser 2 standard compressor. Check refrigerant

103

Excessive discharge temperature rise 105°C Sub condenser 2 standard compressor. Check refrigerant

104

Communication error between Main and Sub outdoor units. Check comms wiring and power to all outdoor units

105

Communication error between outdoor main PCB and fan PCB. Check plug connections and LEDs. If OK, replace either main or fan PCB

106

Outdoor unit fan motor high current. Check fans rotate freely, and are connected correctly

107

Outdoor unit low voltage to fan PCB. Check 300 Vdc supply, check fuses and plug connections. If OK, replace fan PCB

108

Communication error between outdoor main PCB, and fan PCB. Check plug connections and LEDs. If OK replace either main or fan PCB

109

Sub 1 excessive rise of high pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris

110

Sub 1 reverse or open phase. Check all 3 phases are present and correct. If correct voltage appears at all three phases, swap any two to cure the fault

111

Communication error between Main and Sub outdoor units. Check comms wiring and power to all outdoor units

113

Main outdoor unit liquid pipe sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C

114

Main outdoor unit Subcool inlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C

115

Main outdoor unit Subcool outlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C

116

Sub 1 high pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 8 bar up to 2.5 Vdc = 37 bar

117

Sub 1 low pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 4 bar up to 5 Vdc = 32 bar

118

Sub 1 outdoor unit air sensor fault. Disconnect from PCB and measure resistance. 8 kOhm at 30°C and 13 kOhm at 20°C. If OK replace PCB, if not replace sensor

120

Sub 1 outdoor unit suction sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. if not replace sensor

121

Sub 1 compressor 1 discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C and 168 kOhm at 30°C. if not replace sensor

122

Sub 1 compressor 2 discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C and 168 kOhm at 30°C. if not replace sensor

123

Sub 1 outdoor unit coil sensor A fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor

124

Sub 1 outdoor unit coil sensor B fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor

125

Sub 1 outdoor unit liquid pipe sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C

126

Sub 1 outdoor unit Subcool inlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C

127

Sub 1 outdoor unit Subcool outlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C

128

Sub 2 high pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 8 bar up to 2.5 Vdc = 37 bar

129

Sub 2 low pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 4 bar up to 5 Vdc = 32 bar

130

Sub 2 outdoor unit air sensor fault. Disconnect from PCB and measure resistance. 8 kOhm at 30°C and 13 kOhm at 20°C. If OK replace PCB, if not replace sensor

132

Sub 2 outdoor unit suction sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C.if not replace sensor

133

Sub 2 compressor 1 discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C and 168kOhm at 30°C. if not replace sensor

134

Sub 2 compressor 2 discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C and 168kOhm at 30°C.if not replace sensor

135

Sub 2 outdoor unit coil sensor A fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor

136

Sub 2 outdoor unit coil sensor B fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor

137

Sub 2 outdoor unit liquid pipe sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C

138

Sub 2 outdoor unit Subcool inlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C

139

Sub 2 outdoor unit Subcool outlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C

140

Sub 2 excessive rise of high pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris

141

Sub 2 reverse or open phase. Check all 3 phases are present and correct. If correct voltage appears at all three phases, swap any two to cure the fault

142

Communication error between Main and Sub outdoor units. Check comms wiring and power to all outdoor units

143

Sub 1 excessive rise of high pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris

144

Sub 1 excessive drop of low pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris

145

Sub 2 excessive rise of high pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris

146

Sub 2 excessive drop of low pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris

147

Sub 1 check power supply voltage to the outdoor unit is correct (1ph 220 Vac ±10% or 3ph 380 Vac ±10%).check fuses, if fuses OK replace outdoor main PCB

148

Sub 1 check power supply voltage to the outdoor unit is correct (1ph 220 Vac ±10% or 3ph 380 Vac ±10%). check fuses, if fuses OK replace outdoor main PCB

149

Sub 2 check power supply voltage to the outdoor unit is correct (1ph 220 Vac ±10% or 3ph 380 Vac ±10%). check fuses, if fuses OK replace outdoor main PCB

150

Sub 2 check power supply voltage to the outdoor unit is correct (1ph 220 Vac ±10% or 3ph 380 Vac ±10%). check fuses, if fuses OK replace outdoor main PCB

151

Faulty 4 way valve. Check solenoid coil and output from PCB. If OK, mechanical failure.

152

Excessive discharge temperature rise 105°C Sub condenser 2 standard compressor. Check refrigerant

153

Excessive discharge temperature rise 105°C Sub condenser 2 standard compressor. Check refrigerant

154

Sub 3 excessive rise of high pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris

155

Sub 3 reverse or open phase. Check all 3 phases are present and correct. If correct voltage appears at all three phases, swap any two to cure the fault

156

Communication error between Main and Sub outdoor units. Check comms wiring and power to all outdoor units

157

Sub 3 high pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 8 bar up to 2.5 Vdc = 37 bar

158

Sub 3 low pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 4 bar up to 5 Vdc = 32 bar

159

Sub 3 outdoor unit air sensor fault. Disconnect from PCB and measure resistance. 8 kOhm at 30°C and 13 kOhm at 20°C. If OK replace PCB, if not replace sensor

161

Sub 3 outdoor unit suction sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. if not replace sensor

162

Sub 3 compressor 1 discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C and 168 kOhm at 30°C. if not replace sensor

163

Sub 3 compressor 2 discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C and 168 kOhm at 30°C.if not replace sensor

164

Sub 3 outdoor unit coil sensor A fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor

165

Sub 3 outdoor unit coil sensor B fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor

166

Sub 3 outdoor unit liquid pipe sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C

167

Sub 3 outdoor unit Subcool inlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C

168

Sub 3 outdoor unit Subcool outlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C

169

Sub 3 excessive rise of high pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris

170

Sub 3 excessive drop of low pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris

171

Sub 3 check power supply voltage to the outdoor unit is correct (1ph 220 Vac ±10% or 3ph 380 Vac ±10%). check fuses, if fuses OK replace outdoor main PCB

172

Sub 3 check power supply voltage to the outdoor unit is correct (1ph 220 Vac ±10% or 3ph 380 Vac ±10%). check fuses, if fuses OK replace outdoor main PCB

173

Main outdoor unit standard compressor not starting. Check output from main PCB, check contactor, and check wiring connections. If OK compressor faulty

174

Sub 1 standard compressor 1 not starting. Check output from main PCB, check contactor, and check wiring connections. If OK compressor faulty

175

Sub 1 standard compressor 2 not starting. Check output from main PCB, check contactor, and check wiring connections. If OK compressor faulty

176

Sub 2 standard compressor 1 not starting. Check output from main PCB, check contactor, and check wiring connections. If OK compressor faulty

177

Sub 2 standard compressor 2 not starting. Check output from main PCB, check contactor, and check wiring connections. If OK compressor faulty

204

Comms Error between Outdoor Unit and HR Box No1. 1. Defective connection in HR unit power supply and transmission connection 2. Wrong setting of the HR unit Rotary switch and Dip switch 3. Defective HR unit PCB

208

Comms Error between Outdoor Unit and HR Box No2. 1. Defective connection in HR unit power supply and transmission connection 2. Wrong setting of the HR unit Rotary switch and Dip switch 3. Defective HR unit PCB

212

Comms Error between Outdoor Unit and HR Box No3. 1. Defective connection in HR unit power supply and transmission connection 2. Wrong setting of the HR unit Rotary switch and Dip switch 3. Defective HR unit PCB

240

Central controller wiring error. Check all comms wiring, including between controller and CNU, and IP addresses. If OK possible defective CNU

241

Central controller data sending error. Either defective CNU or Central controller initialisation failure

242

Central controller data receiving error. Either defective CNU or Central controller initialisation failure

243

Central controller. Comms cable too long or picking up external electrical noise. If OK, mismatching of controllers, or defective CNU

244

Central controller data receiving time out. Either defective CNU or Central controller initialisation failure

245

Central controller data sending time out. Either defective CNU or Central controller initialisation failure

246

Central controller data receiving time out. Either defective CNU or Central controller initialisation failure

250

Central controller data receiving error. Either comms cable picking up external electrical noise, or defective CNU

251

Central controller receiving no data. Either comms cable picking up external electrical noise, or defective CNU

252

Central controller incorrect address error. Check addresses match, if OK either comms cable picking up external electrical noise, or defective CNU

253

Central Controller Disconnection Error, No response from Air Conditioner. Check wiring, if OK either comms cable picking up external electrical noise, defective CNU, or Interface.

C1

Indoor unit return air sensor fault, Open or Short. Disconnect sensor from PCB and measure resistance. 8 kOhm at 30C and 13 kOhm at 20C if not replace sensor

C2

Indoor Pipe Sensor or Outdoor Sensor Assy fault, Open or Short. Disconnect from PCB and measure resistance. Air sensor = 10 kOhm at 25C, Pipe sensor = 5 kOhm at 25C. If not replace sensor.

C4

RAC Product = Heat Sink Sensor Error, Open/Short Cct or over 95C. Commercial Product = Condensate pump float switch risen. Check drain pan is empty, check pump is working OK. If no pump check blue jumper plug is inserted in socket CN Float.

C5

Comms Error, check your wiring, remove external pumps. Split/Multi — check volts from terminal N to 3 = 0 — 65 Vdc, Multi V — 4 Vdc terminals 3 and 4

C6

Inverter compressor run current high. Check compressor windings all equal 1 to 4 Ohms, Check to earth 50 MOhm minimum, check run current

C7

Splits = Compressor Over Current (CT2), also see Code 06.

RAC Indoor unit BLDC Fan problem. This is caused by the Indoor fan being locked. Check fan motor is plugged in correctly, Electrically & Mechanically sound.

C8

Check the fan motor turns freely, check the AC Voltage supplied to the fan motor, this will vary from 120 V ac at low speed to 170V AC at high speed. If no

Voltage is present the the PCB is faulty, if Voltage is present the fan motor will be Faulty.

C9

Outdoor unit fan problem. Check Outdoor fan motor is plugged in, Electrically & Mechanically sound, if not replace motor, otherwise replace PCB.

CA

Compressor discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C, 168 kOhm at 30C.

CC

RAC Product = EEPROM Sum Check Error, text 60 for help.

Cd

RAC Product = PSC (Reactor) Error, text 27 for help.

CE

RAC Product = Compressor Phase Current Error

CH00

Text the 1, 2 or 3 digit fault code number only. I.e. If you see fault code CH07 on your indoor unit or R/Controller, only type 7 or 07 in your text message.

CH01

Indoor unit return air sensor fault. Disconnect sensor from PCB and measure resistance. 8 kOhm at 30C and 13 kOhm at 20C if not replace sensor

CH02

Indoor Pipe Sensor or Outdoor Sensor Assy fault, Open or Short. Disconnect from PCB and measure resistance. Air sensor = 10 kOhm at 25C, Pipe sensor = 5 kOhm at 25C. If not replace sensor.

CH03

Remote controller comms error. Check wired correctly, if so check dipswitch in RC. Set to Sg for 1 unit, or Gr for group then reset power

CH04

RAC Product = Heat Sink Sensor Error, Open/Short Cct or over 95C. Commercial Product = Condensate pump float switch risen. Check drain pan is empty, check pump is working OK. If no pump check blue jumper plug is inserted in socket CN Float.

CH05

Comms Error, check your wiring, remove external pumps. Split/Multi — check volts from terminal N to 3 = 0 — 65 Vdc, Multi V — 4 Vdc terminals 3 and 4

CH06

Indoor unit coil sensor fault. Disconnect from PCB measure resistance. 10 kOhm at 10C and 4 kOhm at 30C. if not replace sensor. Split = text 21

CH07

Multi Splits and Multi V = indoor unit is set to run in a different mode from the master indoor unit. Set ALL indoor units to cooling or ALL to heating to clear. Splits = Compressor Over Current (CT2), also see Code 06.

RAC Indoor unit BLDC Fan problem. This is caused by the Indoor fan being locked. Check fan motor is plugged in correctly, Electrically & Mechanically sound.

CH08

Check the fan motor turns freely, check the AC Voltage supplied to the fan motor, this will vary from 120 V ac at low speed to 170V AC at high speed. If no

Voltage is present the the PCB is faulty, if Voltage is present the fan motor will be Faulty.

CH09

Split = Outdoor unit fan problem. Check Outdoor fan motor is plugged in, Electrically & Mechanically sound, if not replace motor, otherwise replace PCB. Multi V = indoor PCB failure. Replace PCB

CH10

RAC Product: Compressor discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C, 168 kOhm at 30C. Multi Fdx & Multi V text 8

CH11

Multi V indoor unit not connected to an outdoor unit. Check comms wiring is correct, and check initialisation has been carried out correctly

CH12

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

CH13

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

CH14

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

CH15

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

CH16

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

CH17

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

CH18

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

CH19

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

CH20

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

CH21

Inverter compressor run current high. Check compressor windings all equal 1 to 4 OhmsCheck to earth 50 MOhm minimum, check run current

CH22

Inverter compressor run current high. Check compressor windings all equal 1 to 4 Ohms . Check to earth 50 MOhm minimum, check run current

CH23

Inverter dc voltage low. Check dc voltage of capacitors 300 Vdc for 1Ph and 600 Vdc for 3Ph. If OK change outdoor inverter PCB

CH24

Splits and Multi Splits = High or low pressure trip. Low at 1 bar High at 35 bar check pressures. Multi V = High pressure trip.

CH25

Check power supply voltage to the outdoor unit is correct (1ph ?220 Vac ±10% or 3ph ?380 Vac ±10%). If OK, check fuses, if fuses are OK replace outdoor main PCB

CH26

Inverter compressor seized. Check compressor windings all equal resistance 1 to 4 Ohms, check to earth 50 MOhm minimum, check run current and Inverter outputs

CH27

Inverter current irregularity. Check inverter PCB and reactor

CH28

Inverter dc voltage too high. Check dc voltage of capacitors 300 Vdc for 1Ph and 600 Vdc for 3Ph. If OK change outdoor inverter PCB

CH29

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

CH30

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

CH31

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

CH32

Inverter compressor discharge temperature too high. If over 105°C, check refrigerant charge

CH33

Excessive rise of standard compressor discharge temperature. If over 105°C check refrigerant charge

CH34

Excessive high pressure rise, over 35 bar at HP sensor. Check pressures, check coils, and filters are clean check for OFN in system pipework

CH35

Excessive low pressure drop under 1 Bar at LP sensor. Check pressures, and check service valves open

CH36

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

CH37

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

CH38

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

CH39

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

CH40

Inverter ac current abnormal. Check compressor windings all equal resistance 1 to 4 Ohms, check to earth 50 MOhm minimum, check run current and inverter outputs

CH41

Inverter compressor discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20C and 168 kOhm at 30C.

CH42

Low pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 4 bar up to 5 Vdc = 32 bar

CH43

High pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 8 bar up to 2.5 Vdc = 37 bar

CH44

Outdoor unit air sensor fault. Disconnect from PCB and measure resistance. 8 kOhm at 30°C and 13 kOhm at 20°C. If OK replace PCB, if not replace sensor

CH45

Outdoor unit coil sensor fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor

CH46

Outdoor unit suction sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor

CH47

Compressor discharge sensor fault. Disconnect from PCB measure resistance. 237 kOhm at 20°C and 168 kOhm at 30°C. If OK replace PCB, if not replace sensor

CH48

Split/Multi Split = Outdoor unit discharge and air sensor both unplugged. Multi V = Outdoor unit coil sensor. Text 45 for diagnostics

CH49

Check power supply voltage to the outdoor unit is correct (1ph ?220 Vac ±10% or 3ph ?380 Vac ±10%). If OK check fuses, if fuses OK, replace outdoor main PCB

CH50

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

CH51

Unit mismatch. Check model number of units do not exceed maximum. Multi V — also check Sub outdoor unit dipswitch settings

CH52

Communication error between inverter PCB and main outdoor unit PCB. Check wiring fuses and LEDs . If OK either inverter or main PCB defective

CH53

Comms error indoor to outdoor unit. Check your wiring . Split and Multi — check voltage from terminal N to 3 = 0 — 65 Vdc, Multi V — 4 Vdc terminals 3 and 4

CH54

Reverse or open phase. Check all 3 phases are present and correct. If correct voltage appears at all three phases, swap any two to cure the fault

CH55

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

CH56

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

CH57

Comms error between outdoor main PCB and inverter PCB. Check wiring fuses and LEDs are lit. If OK either inverter or main PCB defective

CH58

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

CH59

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

CH60

Outdoor unit PCB EEPROM failure, try removing EEPROM and refitting if removable (possible contact fault), otherwise replace PCB if the EEPROM is non-removable.

CH61

Condenser coil over 65°C. Check coil and filters are clean and free from debris, and airflow is OK. Check system pressures for non-condesables

CH62

Inverter over 85°C. Check air flow across heat sink, check inverter tight to heatsink use thermal paste. Multi V — check inverter cooling fan

CH63

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

CH64

no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message

CH65

Outdoor unit inverter fin temperature sensor fault. Disconnect from PCB measure resistance. 8 kOhm at 30°C and 13 kOhm at 20°C

CH67

Outdoor Fan Motor siezed, or rotation sensing circuit failure. Check motor for mechanical and electrical failure.

CL

CL = Child Lock. Press Timer & Min buttons simultaneously for 5 seconds to engage/disengage function.

help

Text the 1, 2 or 3 digit fault code number only. I.e. If you see fault code CH07 on your indoor unit or R/Controller, only type 7 or 07 in your text message.

HL

Condensate pump float switch risen. Check drain pan is empty, check pump is working OK. If no pump check blue jumper plug is inserted in socket CN Float. Alternatively, Dry Contact Interface is in «OFF» condition. Check status and adjust as necessary.

Po

Po = Jet Cool Mode selected. To cancel press Jet Cool, Fan Speed or Set Temperature button.

LG

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What is CH05 Error in LG AC?

The CH05 error code on an LG air conditioner indicates a communication error between the indoor and outdoor units. This error can be caused by various reasons such as incorrect wiring, a faulty control board, or a malfunctioning sensor. If you encounter the CH05 error code on your LG air conditioner, you should first try to reset the unit by turning off the power supply for a few minutes and then turning it back on.

If the error persists, you should consult the user manual for troubleshooting instructions or contact an authorized LG technician for assistance. It is important to note that only licensed HVAC technicians with experience working with air conditioning systems should attempt to diagnose and repair the issue. Improper repairs may result in further damage or pose a safety hazard.

How to Fix LG Error Code CH05?

The error code CH05 on an LG air conditioner typically indicates a communication error between the indoor and outdoor units. Here are some steps you can take to try and fix the issue

  • Turn off the air conditioner and unplug it from the power source.

  • Check the wiring connections between the indoor and outdoor units to make sure they are secure and free of damage.

  • Clean the air filters and remove any debris from the outdoor unit to ensure proper airflow.

  • Wait for about 30 minutes to allow the unit to reset.

  • Plug the air conditioner back in and turn it on.

If the error code persists after trying these steps, it may be necessary to contact a professional technician to diagnose and repair the issue.

TRENDING

Cause of CH05 Error Code in LG

The CH05 error code on an LG air conditioner indicates a communication error between the indoor and outdoor units. The most common causes of this error code are

Incorrect wiring: If the wiring between the indoor and outdoor units is incorrect or damaged, it can cause a communication error and trigger the CH05 error code.

Faulty control board: If the control board of the indoor or outdoor unit is malfunctioning or damaged, it can also cause a communication error and trigger the CH05 error code.

Malfunctioning sensor: If the temperature sensor or other sensors in the indoor or outdoor unit are not functioning properly, they may send incorrect information to the control board, resulting in a communication error and the CH05 error code.

Power failure or surge: If there has been a power failure or surge, it may cause damage to the control board or other components, resulting in a communication error and the CH05 error code.

If you encounter the CH05 error code on your LG air conditioner, you should consult the user manual for troubleshooting instructions or contact an authorized LG technician for assistance.

Error CH05 LG Inverter

The LG inverter error code CH05 indicates a communication error between the indoor and outdoor units of the air conditioning system. This error may be caused by a variety of issues, including wiring problems, faulty sensors, or a malfunctioning control board.

It’s important to note that air conditioning systems are complex, and it’s not recommended to attempt any repairs yourself unless you have experience working with these systems. It’s best to call a licensed HVAC technician to diagnose and repair the issue. They have the necessary tools and expertise to safely and effectively repair your air conditioning system.

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Disclaimer: The above information is for general informational purposes only. All information on the Site is provided in good faith, however we make no representation or warranty of any kind, express or implied, regarding the accuracy, adequacy, validity, reliability, availability or completeness of any information on the Site.

How to Fix LG Error Code CH05 — FAQs

1. What is CH05 Error in LG AC?
 

The CH05 error code on an LG air conditioner indicates a communication error between the indoor and outdoor units.

2. How do I reset the CH error on my LG air conditioner?
 

Unplug the dehumidifier for 20 seconds to reset the unit.

3. What does CH 07 mean on LG air conditioner?

Inverter ac current abnormal.

4. How do I fix CH 38 error on my LG air conditioner?
 

Unplug the power cord or shut off the circuit breaker and turn the power on after 5 minutes.

00 Text the 1, 2 or 3 digit fault code number only. I.e. If you see fault code CH07 on your indoor unit or R/Controller, only type 7 or 07 in your text message. 01 Indoor unit return air sensor fault. Disconnect sensor from PCB and measure resistance. 8 kOhm at 30C and 13 kOhm at 20C if not replace sensor 1 Indoor unit return air sensor fault. Disconnect sensor from PCB and measure resistance. 8 kOhm at 30C and 13 kOhm at 20C if not replace sensor 02 Indoor Pipe Sensor or Outdoor Sensor Assy fault, Open or Short. Disconnect from PCB and measure resistance. Air sensor = 10 kOhm at 25C, Pipe sensor = 5 kOhm at 25C. If not replace sensor. 2 Indoor Pipe Sensor or Outdoor Sensor Assy fault, Open or Short. Disconnect from PCB and measure resistance. Air sensor = 10 kOhm at 25C, Pipe sensor = 5 kOhm at 25C. If not replace sensor. 03 Remote controller comms error. Check wired correctly, if so check dipswitch in RC. Set to Sg for 1 unit, or Gr for group then reset power 3 Remote controller comms error. Check wired correctly, if so check dipswitch in RC. Set to Sg for 1 unit, or Gr for group then reset power 04 RAC Product = Heat Sink Sensor Error, Open/Short Cct or over 95C. Commercial Product = Condensate pump float switch risen. Check drain pan is empty, check pump is working OK. If no pump check blue jumper plug is inserted in socket CN Float. 4 RAC Product = Heat Sink Sensor Error, Open/Short Cct or over 95C. Commercial Product = Condensate pump float switch risen. Check drain pan is empty, check pump is working OK. If no pump check blue jumper plug is inserted in socket CN Float. 05 Comms Error, check your wiring, remove external pumps. Split/Multi — check volts from terminal N to 3 = 0 — 65 Vdc, Multi V — 4 Vdc terminals 3 and 4 5 Comms Error, check your wiring, remove external pumps. Split/Multi — check volts from terminal N to 3 = 0 — 65 Vdc, Multi V — 4 Vdc terminals 3 and 4 06 Indoor unit coil sensor fault. Disconnect from PCB measure resistance. 10 kOhm at 10C and 4 kOhm at 30C. if not replace sensor. Split = text 21 6 Indoor unit coil sensor fault. Disconnect from PCB measure resistance. 10 kOhm at 10C and 4 kOhm at 30C. if not replace sensor. Split = text 21 07 Multi Splits and Multi V = indoor unit is set to run in a different mode from the master indoor unit. Set ALL indoor units to cooling or ALL to heating to clear. Splits = Compressor Over Current (CT2), also see Code 06. 7 Multi Splits and Multi V = indoor unit is set to run in a different mode from the master indoor unit. Set ALL indoor units to cooling or ALL to heating to clear. Splits = Compressor Over Current (CT2), also see Code 06. RAC Indoor unit BLDC Fan problem. This is caused by the Indoor fan being locked. Check fan motor is plugged in correctly, Electrically & Mechanically sound. 08 Check the fan motor turns freely, check the AC Voltage supplied to the fan motor, this will vary from 120 V ac at low speed to 170V AC at high speed. If no Voltage is present the the PCB is faulty, if Voltage is present the fan motor will be Faulty. RAC Indoor unit BLDC Fan problem. This is caused by the Indoor fan being locked. Check fan motor is plugged in correctly, Electrically & Mechanically sound. 8 Check the fan motor turns freely, check the AC Voltage supplied to the fan motor, this will vary from 120 V ac at low speed to 170V AC at high speed. If no Voltage is present the the PCB is faulty, if Voltage is present the fan motor will be Faulty. 09 Split = Outdoor unit fan problem. Check Outdoor fan motor is plugged in, Electrically & Mechanically sound, if not replace motor, otherwise replace PCB. Multi V = Indoor unit EEPROM error — Replace the indoor unit PCB, and then make sure to do Auto addressing and input the address of central control. 9 Split = Outdoor unit fan problem. Check Outdoor fan motor is plugged in, Electrically & Mechanically sound, if not replace motor, otherwise replace PCB. Multi V = Indoor unit EEPROM error — Replace the indoor unit PCB, and then make sure to do Auto addressing and input the address of central control. 10 RAC Product: Compressor discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C, 168 kOhm at 30C. Multi Fdx & Multi V text 8 11 Multi V indoor unit not connected to an outdoor unit. Check comms wiring is correct, and check initialisation has been carried out correctly 12 RAC Product = EEPROM Sum Check Error, text 60 for help. 13 RAC Product = PSC (Reactor) Error, text 27 for help. 14 RAC Product = Compressor Phase Current Error 15 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message 16 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message 17 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message 18 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message 19 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message 20 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message 21 Inverter compressor run current high. Check compressor windings all equal 1 to 4 Ohms, Check to earth 50 MOhm minimum, check run current 22 Inverter compressor run current high. Check compressor windings all equal 1 to 4 Ohms . Check to earth 50 MOhm minimum, check run current 23 Inverter dc voltage low. Check dc voltage of capacitors 300 Vdc for 1Ph and 600 Vdc for 3Ph. If OK change outdoor inverter PCB 24 Splits and Multi Splits = High or low pressure trip. Low at 1 bar High at 35 bar check pressures. Multi V = High pressure trip. 25 Check power supply voltage to the outdoor unit is correct (1ph ?220 Vac ±10% or 3ph ?380 Vac ±10%). If OK, check fuses, if fuses are OK replace outdoor main PCB 26 Inverter compressor seized. Check compressor windings all equal resistance 1 to 4 Ohms, check to earth 50 MOhm minimum, check run current and Inverter outputs 27 Inverter current irregularity. Check inverter PCB, check reactor connections and its resistance is less than 1 ohm. 28 Inverter dc voltage too high. Check dc voltage of capacitors 300 Vdc for 1Ph and 600 Vdc for 3Ph. If OK change outdoor inverter PCB 29 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message 30 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message 31 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message 32 Inverter compressor discharge temperature too high. If over 105°C, check refrigerant charge 33 Excessive rise of standard compressor discharge temperature. If over 105°C check refrigerant charge 34 Excessive high pressure rise, over 35 bar at HP sensor. Check pressures, check coils, and filters are clean check for OFN in system pipework 35 Excessive low pressure drop under 1 Bar at LP sensor. Check pressures, and check service valves open 36 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message 37 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message 38 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message 39 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message 40 Inverter ac current abnormal. Check compressor windings all equal resistance 1 to 4 Ohms, check to earth 50 MOhm minimum, check run current and inverter outputs 41 Inverter compressor discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C and 168 kOhm at 30°C. 42 Low pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 4 bar up to 5 Vdc = 32 bar 43 High pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 8 bar up to 2.5 Vdc = 37 bar 44 Outdoor unit air sensor fault. Disconnect from PCB and measure resistance. 8 kOhm at 30C and 13 kOhm at 20C. If OK replace PCB, if not replace sensor 45 Outdoor unit coil sensor fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor 46 Outdoor unit suction sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor 47 Compressor discharge sensor fault. Disconnect from PCB measure resistance. 237 kOhm at 20°C and 168 kOhm at 30°C. If OK replace PCB, if not replace sensor 48 Split/Multi Split = Outdoor unit discharge and air sensor both unplugged. Multi V = Outdoor unit coil sensor. Text 45 for diagnostics 49 Check power supply voltage to the outdoor unit is correct (1ph ?220 Vac ±10% or 3ph ?380 Vac ±10%). If OK check fuses, if fuses OK, replace outdoor main PCB 50 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message 51 Unit mismatch. Check model number of units do not exceed maximum. Multi V — also check Sub outdoor unit dipswitch settings 52 Communication error between inverter PCB and main outdoor unit PCB. Check wiring fuses and LEDs . If OK either inverter or main PCB defective 53 Comms error indoor to outdoor unit. Check your wiring . Split and Multi — check voltage from terminal N to 3 = 0 — 65 Vdc, Multi V — 4 Vdc terminals 3 and 4 54 Reverse or open phase. Check all 3 phases are present and correct. If correct voltage appears at all three phases, swap any two to cure the fault 55 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message 56 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message 57 Comms error between outdoor main PCB and inverter PCB. Check wiring fuses and LEDs are lit. If OK either inverter or main PCB defective 58 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message 59 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message 60 Outdoor unit PCB EEPROM failure, try removing EEPROM and refitting if removable (possible contact fault), otherwise replace PCB if the EEPROM is non-removable. 61 Condenser coil over 65°C. Check coil and filters are clean and free from debris, and airflow is OK. Check system pressures for non-condesables 62 Inverter over 85°C. Check air flow across heat sink, check inverter tight to heatsink use thermal paste. Multi V — check inverter cooling fan 63 Multi F(DX) — «Cond. Pipe Sensor Temp. Low» (opposite to Error Code 61). Check Temperature/Resistance reading and replace sensor if found to be faulty. If sensor okay, check for cause of low temperature and rectify. 64 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message 65 Outdoor unit inverter fin temperature sensor fault. Disconnect from PCB measure resistance. 8 kOhm at 30°C and 13 kOhm at 20°C 67 Outdoor Fan Motor siezed, or rotation sensing circuit failure. Check motor for mechanical and/or electrical failure, if okay replace pcb. 100 Excessive discharge temperature rise 105°C Sub condenser 1 standard compressor. Check refrigerant 101 Excessive discharge temperature rise 105°C Sub condenser 1 standard compressor. Check refrigerant 102 Excessive discharge temperature rise 105°C Sub condenser 2 standard compressor. Check refrigerant 103 Excessive discharge temperature rise 105°C Sub condenser 2 standard compressor. Check refrigerant 104 Communication error between Main and Sub outdoor units. Check comms wiring and power to all outdoor units 105 Communication error between outdoor main PCB and fan PCB. Check plug connections and LEDs. If OK, replace either main or fan PCB 106 Outdoor unit fan motor high current. Check fans rotate freely, and are connected correctly 107 Outdoor unit low voltage to fan PCB. Check 300 Vdc supply, check fuses and plug connections. If OK, replace fan PCB 108 Communication error between outdoor main PCB, and fan PCB. Check plug connections and LEDs. If OK replace either main or fan PCB 109 Sub 1 excessive rise of high pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris 110 Sub 1 reverse or open phase. Check all 3 phases are present and correct. If correct voltage appears at all three phases, swap any two to cure the fault 111 Communication error between Main and Sub outdoor units. Check comms wiring and power to all outdoor units 113 Main outdoor unit liquid pipe sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C 114 Main outdoor unit Subcool inlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C 115 Main outdoor unit Subcool outlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C 116 Sub 1 high pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 8 bar up to 2.5 Vdc = 37 bar 117 Sub 1 low pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 4 bar up to 5 Vdc = 32 bar 118 Sub 1 outdoor unit air sensor fault. Disconnect from PCB and measure resistance. 8 kOhm at 30°C and 13 kOhm at 20°C. If OK replace PCB, if not replace sensor 120 Sub 1 outdoor unit suction sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. if not replace sensor 121 Sub 1 compressor 1 discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C and 168 kOhm at 30°C. if not replace sensor 122 Sub 1 compressor 2 discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C and 168 kOhm at 30°C. if not replace sensor 123 Sub 1 outdoor unit coil sensor A fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor 124 Sub 1 outdoor unit coil sensor B fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor 125 Sub 1 outdoor unit liquid pipe sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C 126 Sub 1 outdoor unit Subcool inlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C 127 Sub 1 outdoor unit Subcool outlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C 128 Sub 2 high pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 8 bar up to 2.5 Vdc = 37 bar 129 Sub 2 low pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 4 bar up to 5 Vdc = 32 bar 130 Sub 2 outdoor unit air sensor fault. Disconnect from PCB and measure resistance. 8 kOhm at 30°C and 13 kOhm at 20°C. If OK replace PCB, if not replace sensor 132 Sub 2 outdoor unit suction sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C.if not replace sensor 133 Sub 2 compressor 1 discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C and 168kOhm at 30°C. if not replace sensor 134 Sub 2 compressor 2 discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C and 168kOhm at 30°C.if not replace sensor 135 Sub 2 outdoor unit coil sensor A fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor 136 Sub 2 outdoor unit coil sensor B fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor 137 Sub 2 outdoor unit liquid pipe sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C 138 Sub 2 outdoor unit Subcool inlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C 139 Sub 2 outdoor unit Subcool outlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C 140 Sub 2 excessive rise of high pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris 141 Sub 2 reverse or open phase. Check all 3 phases are present and correct. If correct voltage appears at all three phases, swap any two to cure the fault 142 Communication error between Main and Sub outdoor units. Check comms wiring and power to all outdoor units 143 Sub 1 excessive rise of high pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris 144 Sub 1 excessive drop of low pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris 145 Sub 2 excessive rise of high pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris 146 Sub 2 excessive drop of low pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris 147 Sub 1 check power supply voltage to the outdoor unit is correct (1ph 220 Vac ±10% or 3ph 380 Vac ±10%).check fuses, if fuses OK replace outdoor main PCB 148 Sub 1 check power supply voltage to the outdoor unit is correct (1ph 220 Vac ±10% or 3ph 380 Vac ±10%). check fuses, if fuses OK replace outdoor main PCB 149 Sub 2 check power supply voltage to the outdoor unit is correct (1ph 220 Vac ±10% or 3ph 380 Vac ±10%). check fuses, if fuses OK replace outdoor main PCB 150 Sub 2 check power supply voltage to the outdoor unit is correct (1ph 220 Vac ±10% or 3ph 380 Vac ±10%). check fuses, if fuses OK replace outdoor main PCB 151 Faulty 4 way valve. Check solenoid coil and output from PCB. If OK, mechanical failure. 152 Excessive discharge temperature rise 105°C Sub condenser 2 standard compressor. Check refrigerant 153 Excessive discharge temperature rise 105°C Sub condenser 2 standard compressor. Check refrigerant 154 Sub 3 excessive rise of high pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris 155 Sub 3 reverse or open phase. Check all 3 phases are present and correct. If correct voltage appears at all three phases, swap any two to cure the fault 156 Communication error between Main and Sub outdoor units. Check comms wiring and power to all outdoor units 157 Sub 3 high pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 8 bar up to 2.5 Vdc = 37 bar 158 Sub 3 low pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 4 bar up to 5 Vdc = 32 bar 159 Sub 3 outdoor unit air sensor fault. Disconnect from PCB and measure resistance. 8 kOhm at 30°C and 13 kOhm at 20°C. If OK replace PCB, if not replace sensor 161 Sub 3 outdoor unit suction sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. if not replace sensor 162 Sub 3 compressor 1 discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C and 168 kOhm at 30°C. if not replace sensor 163 Sub 3 compressor 2 discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C and 168 kOhm at 30°C.if not replace sensor 164 Sub 3 outdoor unit coil sensor A fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor 165 Sub 3 outdoor unit coil sensor B fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor 166 Sub 3 outdoor unit liquid pipe sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C 167 Sub 3 outdoor unit Subcool inlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C 168 Sub 3 outdoor unit Subcool outlet sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C 169 Sub 3 excessive rise of high pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris 170 Sub 3 excessive drop of low pressure. Check pressures, check for non condensables, check heat exchanger coil is free from debris 171 Sub 3 check power supply voltage to the outdoor unit is correct (1ph 220 Vac ±10% or 3ph 380 Vac ±10%). check fuses, if fuses OK replace outdoor main PCB 172 Sub 3 check power supply voltage to the outdoor unit is correct (1ph 220 Vac ±10% or 3ph 380 Vac ±10%). check fuses, if fuses OK replace outdoor main PCB 173 Main outdoor unit standard compressor not starting. Check output from main PCB, check contactor, and check wiring connections. If OK compressor faulty 174 Sub 1 standard compressor 1 not starting. Check output from main PCB, check contactor, and check wiring connections. If OK compressor faulty 175 Sub 1 standard compressor 2 not starting. Check output from main PCB, check contactor, and check wiring connections. If OK compressor faulty 176 Sub 2 standard compressor 1 not starting. Check output from main PCB, check contactor, and check wiring connections. If OK compressor faulty 177 Sub 2 standard compressor 2 not starting. Check output from main PCB, check contactor, and check wiring connections. If OK compressor faulty 204 Comms Error between Outdoor Unit and HR Box No1. 1. Defective connection in HR unit power supply and transmission connection 2. Wrong setting of the HR unit Rotary switch and Dip switch 3. Defective HR unit PCB 208 Comms Error between Outdoor Unit and HR Box No2. 1. Defective connection in HR unit power supply and transmission connection 2. Wrong setting of the HR unit Rotary switch and Dip switch 3. Defective HR unit PCB 212 Comms Error between Outdoor Unit and HR Box No3. 1. Defective connection in HR unit power supply and transmission connection 2. Wrong setting of the HR unit Rotary switch and Dip switch 3. Defective HR unit PCB 240 Central controller wiring error. Check all comms wiring, including between controller and CNU, and IP addresses. If OK possible defective CNU 241 Central controller data sending error. Either defective CNU or Central controller initialisation failure 242 Central controller data receiving error. Either defective CNU or Central controller initialisation failure 243 Central controller. Comms cable too long or picking up external electrical noise. If OK, mismatching of controllers, or defective CNU 244 Central controller data receiving time out. Either defective CNU or Central controller initialisation failure 245 Central controller data sending time out. Either defective CNU or Central controller initialisation failure 246 Central controller data receiving time out. Either defective CNU or Central controller initialisation failure 250 Central controller data receiving error. Either comms cable picking up external electrical noise, or defective CNU 251 Central controller receiving no data. Either comms cable picking up external electrical noise, or defective CNU 252 Central controller incorrect address error. Check addresses match, if OK either comms cable picking up external electrical noise, or defective CNU 253 Central Controller Disconnection Error, No response from Air Conditioner. Check wiring, if OK either comms cable picking up external electrical noise, defective CNU, or Interface. C1 Indoor unit return air sensor fault, Open or Short. Disconnect sensor from PCB and measure resistance. 8 kOhm at 30C and 13 kOhm at 20C if not replace sensor C2 Indoor Pipe Sensor or Outdoor Sensor Assy fault, Open or Short. Disconnect from PCB and measure resistance. Air sensor = 10 kOhm at 25C, Pipe sensor = 5 kOhm at 25C. If not replace sensor. C4 RAC Product = Heat Sink Sensor Error, Open/Short Cct or over 95C. Commercial Product = Condensate pump float switch risen. Check drain pan is empty, check pump is working OK. If no pump check blue jumper plug is inserted in socket CN Float. C5 Comms Error, check your wiring, remove external pumps. Split/Multi — check volts from terminal N to 3 = 0 — 65 Vdc, Multi V — 4 Vdc terminals 3 and 4 C6 Inverter compressor run current high. Check compressor windings all equal 1 to 4 Ohms, Check to earth 50 MOhm minimum, check run current C7 Splits = Compressor Over Current (CT2), also see Code 06. RAC Indoor unit BLDC Fan problem. This is caused by the Indoor fan being locked. Check fan motor is plugged in correctly, Electrically & Mechanically sound. C8 Check the fan motor turns freely, check the AC Voltage supplied to the fan motor, this will vary from 120 V ac at low speed to 170V AC at high speed. If no Voltage is present the the PCB is faulty, if Voltage is present the fan motor will be Faulty. C9 Outdoor unit fan problem. Check Outdoor fan motor is plugged in, Electrically & Mechanically sound, if not replace motor, otherwise replace PCB. CA Compressor discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C, 168 kOhm at 30C. CC RAC Product = EEPROM Sum Check Error, text 60 for help. Cd RAC Product = PSC (Reactor) Error, text 27 for help. CE RAC Product = Compressor Phase Current Error CH00 Text the 1, 2 or 3 digit fault code number only. I.e. If you see fault code CH07 on your indoor unit or R/Controller, only type 7 or 07 in your text message. CH01 Indoor unit return air sensor fault. Disconnect sensor from PCB and measure resistance. 8 kOhm at 30C and 13 kOhm at 20C if not replace sensor CH02 Indoor Pipe Sensor or Outdoor Sensor Assy fault, Open or Short. Disconnect from PCB and measure resistance. Air sensor = 10 kOhm at 25C, Pipe sensor = 5 kOhm at 25C. If not replace sensor. CH03 Remote controller comms error. Check wired correctly, if so check dipswitch in RC. Set to Sg for 1 unit, or Gr for group then reset power CH04 RAC Product = Heat Sink Sensor Error, Open/Short Cct or over 95C. Commercial Product = Condensate pump float switch risen. Check drain pan is empty, check pump is working OK. If no pump check blue jumper plug is inserted in socket CN Float. CH05 Comms Error, check your wiring, remove external pumps. Split/Multi — check volts from terminal N to 3 = 0 — 65 Vdc, Multi V — 4 Vdc terminals 3 and 4 CH06 Indoor unit coil sensor fault. Disconnect from PCB measure resistance. 10 kOhm at 10C and 4 kOhm at 30C. if not replace sensor. Split = text 21 CH07 Multi Splits and Multi V = indoor unit is set to run in a different mode from the master indoor unit. Set ALL indoor units to cooling or ALL to heating to clear. Splits = Compressor Over Current (CT2), also see Code 06. RAC Indoor unit BLDC Fan problem. This is caused by the Indoor fan being locked. Check fan motor is plugged in correctly, Electrically & Mechanically sound. CH08 Check the fan motor turns freely, check the AC Voltage supplied to the fan motor, this will vary from 120 V ac at low speed to 170V AC at high speed. If no Voltage is present the the PCB is faulty, if Voltage is present the fan motor will be Faulty. CH09 Split = Outdoor unit fan problem. Check Outdoor fan motor is plugged in, Electrically & Mechanically sound, if not replace motor, otherwise replace PCB. Multi V = indoor PCB failure. Replace PCB CH10 RAC Product: Compressor discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20°C, 168 kOhm at 30C. Multi Fdx & Multi V text 8 CH11 Multi V indoor unit not connected to an outdoor unit. Check comms wiring is correct, and check initialisation has been carried out correctly CH12 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH13 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH14 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH15 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH16 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH17 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH18 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH19 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH20 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH21 Inverter compressor run current high. Check compressor windings all equal 1 to 4 OhmsCheck to earth 50 MOhm minimum, check run current CH22 Inverter compressor run current high. Check compressor windings all equal 1 to 4 Ohms . Check to earth 50 MOhm minimum, check run current CH23 Inverter dc voltage low. Check dc voltage of capacitors 300 Vdc for 1Ph and 600 Vdc for 3Ph. If OK change outdoor inverter PCB CH24 Splits and Multi Splits = High or low pressure trip. Low at 1 bar High at 35 bar check pressures. Multi V = High pressure trip. CH25 Check power supply voltage to the outdoor unit is correct (1ph ?220 Vac ±10% or 3ph ?380 Vac ±10%). If OK, check fuses, if fuses are OK replace outdoor main PCB CH26 Inverter compressor seized. Check compressor windings all equal resistance 1 to 4 Ohms, check to earth 50 MOhm minimum, check run current and Inverter outputs CH27 Inverter current irregularity. Check inverter PCB and reactor CH28 Inverter dc voltage too high. Check dc voltage of capacitors 300 Vdc for 1Ph and 600 Vdc for 3Ph. If OK change outdoor inverter PCB CH29 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH30 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH31 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH32 Inverter compressor discharge temperature too high. If over 105°C, check refrigerant charge CH33 Excessive rise of standard compressor discharge temperature. If over 105°C check refrigerant charge CH34 Excessive high pressure rise, over 35 bar at HP sensor. Check pressures, check coils, and filters are clean check for OFN in system pipework CH35 Excessive low pressure drop under 1 Bar at LP sensor. Check pressures, and check service valves open CH36 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH37 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH38 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH39 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH40 Inverter ac current abnormal. Check compressor windings all equal resistance 1 to 4 Ohms, check to earth 50 MOhm minimum, check run current and inverter outputs CH41 Inverter compressor discharge sensor fault. Disconnect from PCB measure resistance 237 kOhm at 20C and 168 kOhm at 30C. CH42 Low pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 4 bar up to 5 Vdc = 32 bar CH43 High pressure sensor fault. Check dc voltage between white and black cable on plug. Multi V: 1 Vdc = 8 bar up to 2.5 Vdc = 37 bar CH44 Outdoor unit air sensor fault. Disconnect from PCB and measure resistance. 8 kOhm at 30°C and 13 kOhm at 20°C. If OK replace PCB, if not replace sensor CH45 Outdoor unit coil sensor fault. Disconnect from PCB measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor CH46 Outdoor unit suction sensor fault. Disconnect from PCB and measure resistance. 10 kOhm at 10°C and 4 kOhm at 30°C. If OK replace PCB, if not replace sensor CH47 Compressor discharge sensor fault. Disconnect from PCB measure resistance. 237 kOhm at 20°C and 168 kOhm at 30°C. If OK replace PCB, if not replace sensor CH48 Split/Multi Split = Outdoor unit discharge and air sensor both unplugged. Multi V = Outdoor unit coil sensor. Text 45 for diagnostics CH49 Check power supply voltage to the outdoor unit is correct (1ph ?220 Vac ±10% or 3ph ?380 Vac ±10%). If OK check fuses, if fuses OK, replace outdoor main PCB CH50 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH51 Unit mismatch. Check model number of units do not exceed maximum. Multi V — also check Sub outdoor unit dipswitch settings CH52 Communication error between inverter PCB and main outdoor unit PCB. Check wiring fuses and LEDs . If OK either inverter or main PCB defective CH53 Comms error indoor to outdoor unit. Check your wiring . Split and Multi — check voltage from terminal N to 3 = 0 — 65 Vdc, Multi V — 4 Vdc terminals 3 and 4 CH54 Reverse or open phase. Check all 3 phases are present and correct. If correct voltage appears at all three phases, swap any two to cure the fault CH55 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH56 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH57 Comms error between outdoor main PCB and inverter PCB. Check wiring fuses and LEDs are lit. If OK either inverter or main PCB defective CH58 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH59 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH60 Outdoor unit PCB EEPROM failure, try removing EEPROM and refitting if removable (possible contact fault), otherwise replace PCB if the EEPROM is non-removable. CH61 Condenser coil over 65°C. Check coil and filters are clean and free from debris, and airflow is OK. Check system pressures for non-condesables CH62 Inverter over 85°C. Check air flow across heat sink, check inverter tight to heatsink use thermal paste. Multi V — check inverter cooling fan CH63 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH64 no such fault code Text 1, 2 or 3 digit fault code number only. If you see fault code CH07 only type 7 in your text message CH65 Outdoor unit inverter fin temperature sensor fault. Disconnect from PCB measure resistance. 8 kOhm at 30°C and 13 kOhm at 20°C CH67 Outdoor Fan Motor siezed, or rotation sensing circuit failure. Check motor for mechanical and electrical failure. CL CL = Child Lock. Press Timer & Min buttons simultaneously for 5 seconds to engage/disengage function. help Text the 1, 2 or 3 digit fault code number only. I.e. If you see fault code CH07 on your indoor unit or R/Controller, only type 7 or 07 in your text message. HL Condensate pump float switch risen. Check drain pan is empty, check pump is working OK. If no pump check blue jumper plug is inserted in socket CN Float. Alternatively, Dry Contact Interface is in «OFF» condition. Check status and adjust as necessary. Po Po = Jet Cool Mode selected. To cancel press Jet Cool, Fan Speed or Set Temperature button.

Тепловые шкафы LG являются незаменимым помощником в кулинарии. Они позволяют поддерживать оптимальную температуру для приготовления и хранения пищи. Но иногда может возникнуть ситуация, когда на дисплее появляется код ошибки CH5. Чтобы правильно решить эту проблему, необходимо понять ее причины и способы устранения.

Прежде всего, стоит отметить, что ошибка CH5 свидетельствует о неисправности датчика температуры внутри теплового шкафа. Возможны следующие причины возникновения этой ошибки: неисправность самого датчика, проблемы с электрическим соединением или нестабильная электросеть.

Для начала, рекомендуется проверить датчик температуры на механические повреждения или окисление. Возможно, он требует замены. Также стоит проверить состояние электрического соединения — возможно, оно ослабло или оторвалось. В этом случае, его необходимо исправить или заменить.

Важно помнить, что ремонт электроники и электрических приборов может быть опасен, поэтому, если у вас нет опыта в этих делах, лучше обратиться к профессиональному сервисному центру.

Если вы уверены в своих навыках, можно попробовать устранить ошибку самостоятельно. Возможно, причиной ее возникновения является нестабильная электросеть. Подключите тепловой шкаф LG к другому розеточному разъему и проверьте, исчезнет ли ошибка CH5. Если она исчезнет, значит, проблема была именно в электросети.

Содержание

  1. Тепловой шкаф LG: что это и как он работает
  2. Ошибка CH5: что это значит и как ее определить
  3. Причины возникновения ошибки CH5 в тепловом шкафу LG
  4. 1. Повреждение или неисправность датчика температуры
  5. 2. Отсутствие или неправильное подключение датчика температуры
  6. 3. Неполадки в электронной плате или блоке управления
  7. 4. Перегрузка системы
  8. 5. Другие возможные причины
  9. Способы устранения ошибки CH5 в тепловом шкафу LG
  10. Технические рекомендации по использованию теплового шкафа LG для предотвращения ошибки CH5
  11. 1. Правильное подключение к электрической сети:
  12. 2. Правильная установка:
  13. 3. Не перегружайте шкаф:
  14. 4. Открывайте дверцу осторожно:
  15. 5. Регулярное обслуживание и чистка:
  16. 6. Обратитесь к сервисному центру:
  17. Необходимость обращения к специалисту при возникновении ошибки CH5 в тепловом шкафу LG

Тепловой шкаф LG: что это и как он работает

Тепловой шкаф LG — это бытовое устройство, которое используется для приготовления пищи и поддержания заданной температуры продуктов. Шкаф имеет специальные функции, которые позволяют готовить различные блюда с использованием разных режимов нагрева.

Работа теплового шкафа LG основана на принципе конвекционного обогрева. Внутри шкафа располагаются нагревательные элементы, которые поддерживают постоянную температуру внутри шкафа. Это позволяет равномерно нагревать пищу, обеспечивая ее быстрое приготовление и сохранение вкуса и питательных свойств.

Тепловой шкаф LG имеет различные режимы работы, которые позволяют приготовить различные блюда. Например, в режиме «Гриль» можно запекать мясо или рыбу, придавая им хрустящую корочку. Режим «Горячий воздух» позволяет быстро и равномерно приготовить пиццу, пироги и другие блюда. В режиме «Закрытая гриль-поднос» можно готовить печенье и другие коржи.

В тепловом шкафу LG также предусмотрены специальные функции, такие как размораживание, в котором продукты быстро и равномерно размораживаются без потери вкусовых качеств.

Режимы работы Описание
Гриль Запекание мяса или рыбы с хрустящей корочкой
Горячий воздух Быстрое и равномерное приготовление пиццы, пирогов и других блюд
Закрытая гриль-поднос Приготовление печенья и других коржей
Размораживание Быстрое размораживание продуктов

Тепловой шкаф LG является удобным и функциональным устройством для быстрого и качественного приготовления пищи. Он позволяет экономить время и получать отличные результаты в кулинарии.

Ошибка CH5: что это значит и как ее определить

Ошибка CH5 на тепловом шкафе LG указывает на проблемы в работе термодатчика. Это может означать, что термодатчик вышел из строя или имеет сбои в работе. При возникновении этой ошибки необходимо проверить работу термодатчика и выполнить определенные действия для устранения проблемы.

Для определения ошибки CH5 на тепловом шкафе LG нужно выполнить следующие действия:

  1. Проверить подключение термодатчика к тепловому шкафу. Убедитесь, что все провода и разъемы надежно закреплены и нет повреждений.
  2. Измерьте сопротивление термодатчика с помощью мультиметра. Нормальное значение сопротивления при комнатной температуре должно быть указано в технической документации к тепловому шкафу.
  3. Если сопротивление термодатчика не соответствует норме, замените его на новый. Обратитесь к сервисному центру либо к производителю теплового шкафа LG для приобретения и установки нового термодатчика.
  4. После замены термодатчика перезагрузите тепловой шкаф и проверьте его работу.

Если после выполнения всех вышеуказанных действий ошибка CH5 на тепловом шкафе LG не исчезла, рекомендуется обратиться в сервисный центр для диагностики и ремонта теплового шкафа. Специалисты смогут провести более подробную диагностику и устранить проблему с ошибкой CH5.

Причины возникновения ошибки CH5 в тепловом шкафу LG

Ошибка CH5 в тепловом шкафу LG указывает на проблему с датчиком температуры. Эта ошибка может возникнуть по нескольким причинам.

1. Повреждение или неисправность датчика температуры

Возможно, датчик температуры, который отвечает за регулировку теплового режима в шкафу, поврежден или неисправен. Это может произойти вследствие старения или механического воздействия. В таком случае необходимо заменить датчик на новый, совместимый с моделью теплового шкафа LG.

2. Отсутствие или неправильное подключение датчика температуры

Если датчик температуры не подключен или подключен неправильно, то возникает ошибка CH5. Убедитесь, что датчик правильно подключен к соответствующему разъему внутри шкафа. Если датчик отсутствует, необходимо приобрести и установить новый датчик.

3. Неполадки в электронной плате или блоке управления

Возможно, ошибку CH5 вызывает неисправность в электронной плате или блоке управления теплового шкафа. Эта проблема требует профессионального ремонта. Свяжитесь с авторизованным сервисным центром LG для диагностики и устранения неисправности.

4. Перегрузка системы

Иногда ошибка CH5 может возникать из-за перегрузки системы. Если вы пытаетесь работать слишком многими функциями и програмами одновременно, то тепловой шкаф может не справиться с нагрузкой и выдать ошибку. Рекомендуется ограничить использование других функций и программ при работе с тепловым шкафом.

5. Другие возможные причины

Существуют и другие потенциальные причины возникновения ошибки CH5, такие как проблемы с электропитанием, неправильные настройки температуры или проблемы с вентиляцией. В таких случаях рекомендуется обратиться к руководству пользователя для получения более подробной информации или связаться с технической поддержкой LG.

Способы устранения ошибки CH5 в тепловом шкафу LG

Ошибка CH5 в тепловом шкафу LG указывает на проблемы с датчиком температуры внутри шкафа. Эта ошибка может возникнуть из-за различных причин, но обычно она связана с неисправностью в датчике или его проводке.

Вот несколько способов устранения ошибки CH5 в тепловом шкафу LG:

  1. Проверьте проводку: Убедитесь, что провода, подключенные к датчику температуры, не повреждены или не разорваны. Если обнаружены проблемы с проводкой, замените или отремонтируйте ее.
  2. Проверьте датчик температуры: Удостоверьтесь, что датчик температуры работает должным образом. Для этого можно использовать мультиметр для проверки сопротивления датчика. Если сопротивление не соответствует нормальному диапазону, замените датчик.
  3. Произведите сброс: Попробуйте произвести сброс теплового шкафа LG, чтобы очистить любые временные ошибки. Для этого отсоедините шкаф от источника питания на несколько минут, а затем включите его снова.
  4. Обратитесь к сервисному центру LG: Если проблему не удается устранить самостоятельно, рекомендуется обратиться в сервисный центр LG. Квалифицированные специалисты смогут диагностировать и исправить неисправность с ошибкой CH5.

Важно помнить, что пользовательский ремонт может привести к дополнительным повреждениям или аннулированию гарантии, поэтому всегда лучше проконсультироваться с производителем или сервисным центром перед предпринятием каких-либо действий самостоятельно.

Технические рекомендации по использованию теплового шкафа LG для предотвращения ошибки CH5

Тепловой шкаф LG – это надежное и функциональное оборудование, которое обеспечивает максимально эффективные условия для готовки пищи. Однако, в процессе эксплуатации могут возникать ошибки, включая ошибку CH5. Чтобы избежать возникновения этой ошибки и гарантировать бесперебойную работу вашего теплового шкафа, рекомендуется следовать нижеприведенным техническим рекомендациям.

1. Правильное подключение к электрической сети:

Перед использованием теплового шкафа LG убедитесь, что он правильно подключен к электрической сети. Проверьте, чтобы шнур питания был надежно вставлен в розетку и не был поврежден. Также убедитесь, что шкаф подключен к заземляющему проводнику согласно требованиям безопасности.

2. Правильная установка:

Установите тепловой шкаф LG на ровной поверхности, чтобы избежать его наклона или падения, что может привести к повреждению или возникновению ошибок. Убедитесь, что вокруг шкафа есть достаточное пространство для нормальной циркуляции воздуха и охлаждения.

3. Не перегружайте шкаф:

Не перегружайте тепловой шкаф LG, позволяя ему работать в пределах рекомендованной емкости. Соблюдайте максимальные нагрузки, указанные в инструкции пользователя, чтобы избежать перегрузки и возникновения ошибок.

4. Открывайте дверцу осторожно:

При открывании дверцы шкафа убедитесь, что она полностью открыта и удерживается в горизонтальном положении. Избегайте сильных ударов и рывков, которые могут привести к повреждению механизма двери и возникновению ошибок.

5. Регулярное обслуживание и чистка:

Проводите регулярное обслуживание и чистку теплового шкафа LG согласно рекомендациям производителя. Очищайте шкаф от остатков пищи, жирных пятен и других загрязнений, чтобы избежать возникновения ошибок и сохранить его работоспособность.

6. Обратитесь к сервисному центру:

Если несмотря на принятие всех вышеуказанных мер в тепловом шкафу LG по-прежнему возникает ошибка CH5, рекомендуется обратиться в сервисный центр производителя. Специалисты проведут диагностику и выполнение необходимых ремонтных работ для устранения ошибки.

Пример нагрузки для каждой терморезисторной группы:

Терморезисторная группа Минимальная нагрузка (кг) Максимальная нагрузка (кг)
Группа 1 1.5 2.4
Группа 2 2 3.5
Группа 3 2.5 4.3

Примечание: Перед использованием теплового шкафа LG обязательно ознакомьтесь с инструкцией пользователя и руководством по техническому обслуживанию, предоставленными производителем.

Необходимость обращения к специалисту при возникновении ошибки CH5 в тепловом шкафу LG

Возникновение ошибки CH5 в тепловом шкафу LG указывает на серьезную неисправность в работе устройства. При появлении этой ошибки рекомендуется немедленно обратиться к специалисту для профессионального обслуживания и ремонта.

Причиной ошибки CH5 может быть несколько, и только опытный технический специалист сможет точно определить и устранить неисправность. Не рекомендуется самостоятельно проводить какие-либо манипуляции с тепловым шкафом, так как это может привести к дополнительной поломке и повысить стоимость ремонта.

При обращении к специалисту, они проведут диагностику теплового шкафа, выявят причину ошибки CH5 и предложат оптимальное решение проблемы. В случае необходимости, они также смогут выполнить ремонт и замену неисправных деталей.

Ремонт теплового шкафа LG лучше производить в специализированных сервисных центрах, где работают квалифицированные мастера. Они обладают необходимыми знаниями и опытом работы с техникой LG, что позволяет им эффективно диагностировать и устранять неисправности в тепловых шкафах.

Обращение к специалистам также позволяет избежать дополнительных проблем и повреждения других компонентов теплового шкафа. Некорректное вмешательство в работу устройства может привести к потере гарантии или ухудшению его функциональности.

В целом, при возникновении ошибки CH5 в тепловом шкафу LG необходимо незамедлительно обратиться к специалисту для проверки и ремонта. Только профессиональный ремонт позволит вернуть тепловому шкафу его функциональность и продлить его срок службы.

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