LG Electronics M8004RY4 Air Conditioner User Manual


 
Service Manual 33
Troubleshooting Guide
Possible Trouble 6 It displays abnormally on DC PCB Ass’y.
NO
NO
NO
NO
YES
YES
YES
Are IC01G and IC02G
OK?
Is the connection of
CN-AC/DC OK?
Replace the DC
PCB Ass'y.
Replace IC01G,
IC02G.
Replace IC03G.
Connect connector
to CN-AC/DC exactly.
Does the IC03G
operate normally on AC
PCB Ass'y?