LG L1404R Service Manual - Page 30

IC01M DC 12V?

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Troubleshooting Guide Possible Trouble 2 The compressor does not operate. Is desired Temp. set lower than Room NO Temp.-0.5°C? YES • Select the desired Temp. to lower Number. Is the voltage No.10 NO of IC01M 0V? Is the voltage N0.9 of NO NO Is the Unit for 3 minutes IC01M DC 12V? delay? YES • Check the RY-COMP. • Check the wiring Diagram. YES • Replace IC01M. YES • Wait 3 Minutes. • Replace AC PCB Ass'y. Possible Trouble 3 The compressor always operate. Is the wire connection of NO RY-COMP OK? YES • Check the RY-COMP. • Connect LEAD Wire to RY-COMP again. 30 Room Air Conditioner

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30
Room Air Conditioner
Troubleshooting Guide
Possible Trouble 2
The compressor does not operate.
Possible Trouble 3
The compressor always operate.
Is desired
Temp. set lower than Room
Temp.-0.5
°
C?
Is the voltage No.10
of IC01M 0V?
• Replace IC01M.
• Select the desired Temp. to lower Number.
• Wait 3 Minutes.
Is the Unit for 3 minutes
delay?
• Replace AC
PCB Ass'y.
Is the voltage N0.9 of
IC01M DC 12V?
• Check the RY-COMP.
• Check the wiring
Diagram.
NO
NO
NO
YES
YES
YES
YES
Is the wire connection of
RY-COMP OK?
• Check the RY-COMP.
• Connect LEAD Wire to
RY-COMP again.
NO
YES
NO