Fan Motor - LG MULTI V M ARNU07GTU 4 Series Svc Manual

2.2 Fan Motor

Checking Item
(1) The fan motor does not
operate.
Does failure appears
again when starting
operation?
(2) Vibration of the fan
motor is large.
Symptom
1) When power supply is
abnormal
2) For wrong wiring
- 41 -
Checking Method for Key Components
Countermeasure
* Modify connection status in front of or at the rear of
the breaker, or if the power terminal console is at
frosting condition.
* Modify the power supply voltage is beyond speci-
fied scope.
* For following wiring.
1. Check connection status.
2. Check contact of the connector.
3. Check that parts are firmly secured by tightening
screws.
4. Check connection of polarity.
5. Check short circuit and grounding.
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