22
9 Troubleshooting
In general, possible trouble is classified in three kinds. One is called Starting Failure which is caused
from an electrical defect, another is ineffective Air Conditioning caused by a defect in the refrigeration
circuit and improper application, and the other is called the Structure Damage.
Fan motor speed can't change.
Check the wiring.
Check the capacitor of fan motor. Replace if failed.
Replace the PCB.
Check the resistance of fan motor and replace the motor if failed.
No
No
No
Operation panel don't work.
Check the power supply.
Press the "LED" button of remote controller several times and
check whether the problem is settled down.
Check the wiring of display board.
Repair the wiring.
Replace the display board.
Replace the main control board.
No
No
No
No
Yes
