: Input Voltage Error . The CT2 voltage input is too high (above 14 A).
: Inverter/Compressor Error . Points to a problem with the compressor power supply or phase. Lg Inverter Ac Error Codes
: Inlet Pipe Sensor Error . A fault with the indoor unit's inlet pipe thermistor. : Input Voltage Error
: Outlet Pipe Sensor Error . A fault with the indoor unit's outlet pipe thermistor. Lg Inverter Ac Error Codes
: Indoor Fan Motor Error . The indoor fan is not rotating correctly.
: Communication Error . Specifically between the evaporator and condenser units. Quick Troubleshooting Steps Troubleshooting LG AC CH05 Error: A Quick Guide - Ftp
: Compressor Overheating . The discharge pipe temperature is too high.