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38 Room Air Conditioner
Troubleshooting Guide
Possible Trouble 6 It displays abnormally on DC PCB Ass’y.
NO
NO
NO
NO
YES
YES
YES
Are the IC01G and IC02G
good?
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 IC03G
operate normally on AC
PCB Ass'y?