: Input Voltage Error . The CT2 voltage input is too high (above 14 A).
: Inlet Pipe Sensor Error . A fault with the indoor unit's inlet pipe thermistor. Lg Inverter Ac Error Codes
: Indoor Temperature Sensor Error . This usually indicates an open or closed circuit in the indoor air thermistor. : Input Voltage Error
: Compressor Overheating . The discharge pipe temperature is too high. A fault with the indoor unit's inlet pipe thermistor
: Discharge Temperature Error . The discharge temperature has exceeded 130°C, likely due to a faulty discharge thermistor or low refrigerant.
: Outdoor Fan Motor Error . The outdoor fan motor has failed or is blocked.
: Communication Error . This is one of the most common codes, signifying a communication failure between the indoor and outdoor units. It often requires a technician to check for loose wiring or a faulty PCB.