LG LK-0580HC Service Manual page 41

Possible trouble 7
Is the indoor fan operation?
YES
Is the HUMID LCD "ON"?
YES
Is the output
voltage of IC02D on the
MAIN PCB DC5V?
YES
Is the output
voltage of IC02M's 12PIN on
the MAIN PCB 0V?
YES
Is the voltage
between 1PIN of CN-HUMID and
NEUTRAL 220V?
YES
Is the magnetic
contactor for humidifier ON?
YES
Check the humidifier.
: No humidifier operation performed.
NO
NO
NO
NO
NO
NO
— 41 —
1. Press cooling or fan operation
or heater operation key.
1. Press humidifier Key.
1. Check or exchange IC01D.
IC02D on the MAIN PCB.
1. Check or exchange IC02M.
1. Check or exchange RY3.
1. Check the wiring or Magnetic
contactor.
2. Exchange Magnetic contactor.