: Communication Error . Specifically between the evaporator and condenser units. Quick Troubleshooting Steps Troubleshooting LG AC CH05 Error: A Quick Guide - Ftp
: Input Voltage Error . The CT2 voltage input is too high (above 14 A). Lg Inverter Ac Error Codes
: Indoor Fan Motor Error . The indoor fan is not rotating correctly. : Communication Error
: Inverter/Compressor Error . Points to a problem with the compressor power supply or phase. Lg Inverter Ac Error Codes
: Indoor Temperature Sensor Error . This usually indicates an open or closed circuit in the indoor air thermistor.