LG LWM1836TAS Service Manual page 21

Possible Trouble 2
Is Temp.
setting set lower than Room
Temp.-0.5 C?
YES
Is the voltage No.10
of IC01M 0V?
YES
• Check the RY-COMP.
• Check the wiring
Diagram.
Possible Trouble 3
Is the wire connection of
RY-COMP all right?
YES
• Check the RY-COMP.
Possible Trouble 4
Is the voltage NO.1 or 2 or 4
of IC01M DC 5V?
YES
Is the voltage
NO.13 or 15 or 16
of IC01M 0V?
YES
• Check the RY-Hi or
RY-Lo.
• Check the wiring diagram.
• The compressor does not operate.
NO
• Set the Temp. setting to higher Temp.
NO
Is the voltage N0.7 of
IC01M DC 5V?
YES
• Exchange IC01M.
• The compressor always operate.
NO
• Fan does not operate.
NO
NO
—21—
NO
Is the Unit for 3 minutes
delay?
YES
• Wait 3 Minutes
• Exchange MAIN
P.W.B Ass'y.
• Connect LEAD Wire to
RY-COMP again.
• Exchange IC01M.
• Exchange IC01M.
NO