Read LG WT-H755TH Service Manual online
44
6) Pulsator doesn’t rotate normally.
Where, what & how to check?
Result of Check
Possible Cause How to repair & settle
Clockwise
rotation locked.
rotation locked.
Resistance
is normal.
is normal.
Motor rotates
at both
directions.
at both
directions.
Motor doesn’t
rotates at both
directions.
rotates at both
directions.
Normal
resistance.
resistance.
Turn the power off
and on again then that
symptom disappears.
Explain “Don’t run wash
and on again then that
symptom disappears.
Explain “Don’t run wash
only continuously”.
Change the controller if
there are no contact
defects in the leads of
there are no contact
defects in the leads of
the motor.
Remove cause
locking the pulsator
locking the pulsator
Change the Clutch
Housing Asm.
Housing Asm.
Change the Clutch
Housing Asm if the
motor is locked when
having its shaft rotated
by hand.
Housing Asm if the
motor is locked when
having its shaft rotated
by hand.
Change the capacitor if
there is no contact defect
in capacitor’s lead
there is no contact defect
in capacitor’s lead
Change the Clutch
Housing Asm.
Housing Asm.
Remove the causes.
Pulsator rotates at one
direction.
direction.
1. The Pulsator rotates normally at the
beginning of wash cycle, but is it not
rotate at clockwise direction (locked)
rotate at clockwise direction (locked)
after some wash cycles though there
is motor-working sound?
is motor-working sound?
2. The pulsator doesn’t
rotates either clockwise or
counterclockwise from the beginning
of wash cycle:
of wash cycle:
Check resistance of the wash
motor if there is no motor-working
sound.
motor if there is no motor-working
sound.
3. The pulsator doesn’t rotate at both
directions.
1) Check whether motor rotates at
both directions if there is motor-
working sound when it’s
energized.
working sound when it’s
energized.
2) Check resistance of the motor if
there is no motor-working sound.
Unusual operation.
Defect of
controller or poor
contact of
connectors of
motor leads.
controller or poor
contact of
connectors of
motor leads.
The plusator
locked.
locked.
Defect of the
clutch.
clutch.
Defect of the
capacitor.(check
the capacitor’s
capacitance)
capacitor.(check
the capacitor’s
capacitance)
Defect of the
motor.
motor.
Motor coil is open.
Contact defect of
the leads.
the leads.
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