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Trouble Shooting Guide - LG V-C7780CEV Service Manual

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TROUBLE SHOOTING GUIDE

1. SWITCH ON BUT MOTOR DOSE NOT TURN.
CHECKING
CHECK THE POWER
SOURCE
2. SWITCH ON, MOTOR DOES NOT TURN BUT BUZZES.
LGE Internal Use Only
CAUSE
The fuse is melt down in the
coverknife switch.
Poor plug insertion
Power cord cut
Interior lead wire cut
Motor(stator, armature) coil
cut or damaged.
Poor contact carbon brush
defaced.
Poor switch contact point
(V-C7760HT/HE, V-C7765HT/HTV)
Motor armature cut.
Ball bearing defacement
Impeller hindrance
(Caused by foreign matters)
Copyright © 2007 LG Electronics. Inc. All right reserved.
-7-
Only for training and service purposes
SOLUTION
Exchange the fuse.
Insert again.
Repair or exchange.
Exchange the lead wire.
Exchange the motor.
Exchange or repair the motor.
Exchange the switch.
Exchange the motor.
Exchange the motor.
Remove the foreign matters.

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