LG W081CA SG2 Service Manual page 31

COMPLAINT CAUSE REMEDY
Fan motor will not run. No power Check voltage at outlet. Correct if none.
Power supply cord
Check voltage to rotary switch. If none, check power
supply cord. Replace cord if circuit is open.
Rotary switch Check switch continuity. Refer to wiring diagram for
terminal identification. Replace switch if defective.
Wire disconnected or
connection loose
Connect wire. Refer to wiring diagram for terminal
identification. Repair or replace loose terminal.
Capacitor (Discharge
capacitor before testing.)
Test capacitor.
Replace if not within ±10% of manufacturer's rating.
Replace if shorted, open, or damaged.
Will not rotate Fan blade hitting shroud or blower wheel hitting
scroll. Realign assembly.
Units using slinger ring for condenser fan must have
V
4
to 5/i6 inch clearance to the base. If it hits the
base, shim up the bottom of the fan motor with
mounting screw(s).
Check fan motor bearings; if motor shaft will not
rotate, replace the motor.
Fan motor runs
intermittently
Revolves on overload.
Check voltage. If not within limits, call an electrician.
Test capacitor.
Check bearings. Does the fan blade rotate freely?
If not, replace fan motor.
Pay attention to any change from high speed to
low speed. If the speed does not change, replace the
motor.
Fan motor noise.
Fan
If cracked, out of balance, or partially missing,
replace it.
Blower
If cracked, out of balance, or partially missing,
replace it.
Loose clamper
Worn bearings
Compressor will not run,
but fan motor runs.
Voltage
Wiring
Check PMngtfona^MsiiQ
replac^^ratewhinal. If wires are off, refer to wiring
diagrel^ffir identificatior^^/^^i/iQl^ck wire
location^f not per wiring diagram, correct.
Rotary