: Outlet Pipe Sensor Error . A fault with the indoor unit's outlet pipe thermistor.
: Compressor Overheating . The discharge pipe temperature is too high.
: DC Link Low Voltage . The DC voltage has dropped below 140V. Lg Inverter Ac Error Codes
: Indoor Fan Motor Error . The indoor fan is not rotating correctly.
: Inverter/Compressor Error . Points to a problem with the compressor power supply or phase. : Outlet Pipe Sensor Error
: Communication Error . Specifically between the evaporator and condenser units. Quick Troubleshooting Steps Troubleshooting LG AC CH05 Error: A Quick Guide - Ftp
: Outdoor Fan Motor Error . The outdoor fan motor has failed or is blocked. The discharge pipe temperature is too high
: 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.