LG General Wall Mounted-Inverter Type - Manual (Page 44)

44 Room Air Conditioner
Part 4 Trouble Shooting
Turn on the main power.
When in air circulation mode, compressor/outdoor fan is stopped.
Turn off main power.
Check the electrical wiring diagram of Outdoor side.
Check the open or short of connecting wires between Indoor and Outdoor.
Check the sensor for Indoor temperature is attatched as close as to be effected by the
themperature of Heat Exchange (EVA.)
When displaying Error code, refer to the trouble shooting guide.
Check the main power source.(AC 208V~230V)
Check the trouble shooting guide error code 21,26.
Check that CN_FAN(A,B) supplied voltage to outdoor PCB is about AC 208V~230V.
Operate Cooling Mode by setting the disired temperature of the remote controller is less
than one of the Indoor temperature by 1°C at least.
The Compressor/Outdoor Fan don't operate (18, 24, 30kBtu/h Model) Trouble 4