LG HBLG1004R Service Manual page 31

Troubleshooting Guide
The compressor does not operate.
Possible Trouble 2
Is desired
NO
• Select the desired Temp. to lower Number.
Temp. set lower than Room
Temp.-0.5 C?
YES
NO
NO NO
Is the voltage No.10
Is the voltage N0.9 of
Is the Unit for 3 minutes
of IC01M 0V?
IC01M DC 12V?
delay?
YES
YES
YES
• Check the RY-COMP.
• Replace IC01M. • Wait 3 Minutes.
• Check the wiring
Diagram.
• Replace AC
PCB Ass'y.
The compressor always operate.
Possible Trouble 3
• Connect LEAD Wire to
NO
Is the wire connection of
RY-COMP again.
RY-COMP OK?
YES
• Check the RY-COMP.
Service Manual 31