LG 230/208V Service Manual - Page 29

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COMPLAINT

Fan motor will not run.

Fan motor runs

intermittently

Fan motor noise.

CAUSE

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

—29—

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.

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.