40 LG air conditioner error codes and troubleshooting

This article we offer you the complete list of LG ac error codes, also known as lg air conditioner fault codes. If your LG aircon not working well, you will see the error code in your remote control. If your LG air conditioner model do not have remote control, the error code will show in the aircon.

LG inverter air conditioner error codes

LG AC error code c1 or ch1Indoor temperature sensor open or closed circuit
LG AC error code c2 or ch2Outdoor temperature sensor open or closed circuit
LG AC error code c4 or ch4Heat sink temperature sensor open or closed circuit
LG AC error code c5 or ch5Communication indoor and outdoor units
LG AC error code c6 or ch6Excessive current at inverter DC power circuit
LG AC error code c7 or ch7Excessive compressor current
LG AC error code c8 or ch8Indoor fan not rotating
LG AC error code c9 or ch9Outdoor fan not rotating
LG AC error code ca or ch10Faulty discharge thermistor
LG AC error code ccEEPROM error
LG AC error code cdInverter module error
LG AC error code poSystem in power mode ( not a fault )
LG AC error code loSystem in test mode ( not a fault )
LG AC error code ch 01Indoor unit return air thermistor
LG AC error code ch 02Indoor unit coil inlet thermistor
LG AC error code ch 03Wiring error between the remote controller and the fan coil
LG AC error code ch 04Float switch fan
LG AC error code ch 05Communication indoor and outdoor
LG AC error code ch 06Indoor unit coil outlet thermistor
LG AC error code ch 09EEPROM connects on main PCB
LG AC error code ch 10Indoor fan motor problem
LG AC error code ch 21Over current in the inverters DC power circuit
LG AC error code ch 22Compressor over-current
LG AC error code ch 25Incoming power supply to the system
LG AC error code ch 26Inverter compressor
LG AC error code ch 27Inverter module
LG AC error code ch 28DC voltage inverter is too high
LG AC error code ch 29Overload operation or compressor damage
LG AC error code ch 32Inverter compressor discharge temperature is above 105 degrees
LG AC error code ch 39PCB defect or wiring defect
LG AC error code ch 41Inverter compressor discharge thermistor fault
LG AC error code ch 44Outdoor unite air themermistor
LG AC error code ch 45Condenser coil outlet thermistor
LG AC error code ch 46Compressor suction thermistor
LG AC error code ch 47Inverter compressor discharge thermistor fault
LG AC error code ch 61Outdoor unit condenser coil temperature above 65 degrees
LG AC error code ch 62Outdoor unit inverter heat-sink thermistor
LG AC error code ch 65Inverter PCB heat sink thermistor
LG AC error code ch 67Outdoor fan motor
LG AC error code ch 73Overload operation or compressor damage
40 lg air conditioner error codes

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