LG LP121CEM-Y8 User Manual

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LGE Internal Use Only

COMPLAINT

CAUSE

REMEDY

Check voltage at outlet. Correct if none.

Check voltage to rotary switch. If none, check
power supply cord. Replace cord if circuit is open.

Check switch continuity. Refer to wiring diagram
for terminal identification. Replace switch if
defective.

Connect wire. Refer to wiring diagram for terminal
identification. Repair or replace loose terminal.

Test capacitor.
Replace if not within ±10% of manufacturer's
rating. Replace if shorted, open, or damaged.

Fan blade hitting shroud or cross flow fan hitting
scroll. Realign assembly.

Units using slinger ring condenser fans must
have

inch clearance to the base. If it is

hitting 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.

Check voltage. See limits on this page. 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.

Check grommets; if worn or missing, replace them.

If cracked, out of balance, or partially missing,
replace it.

Tighten it.

If knocking sounds continue when running or
loose, replace the motor. If the motor hums or
noise appears to be internal while running,
replace motor.

No power

Power supply cord

Rotary switch

Wire disconnected or
connection loose

Capacitor (Discharge
capacitor before testing.)

Will not rotate

Revolves on overload.

Grommets

Fan

Turbo fan

Loose set screw

Worn bearings

Fan motor will not run.

Fan motor runs
intermittently

Fan motor noise.