WT-H755TH - LG Washing Machine Service Manual (repair manual). Page 49

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48
10) Spin extraction is not proceeded.
Where, what & how to check?
Result of Check
Possible Cause How to repair & settle
There is motor
working sound.
Less than
26.3
The lid is open
Defect of
connection part.
The lid is open.
Defect of magnetic in
LID-B 
Contact defect of
the Ball Pressure
Sensor(Safety
Switch)
Resistance is 
normal
Defect of the 
capacitor or 
Mechanically 
locked.
Defect of the 
Ball Pressure
Sensor(Pressure
Switch).
Mistake in use.
Mistake in use.
Coil is open.
Coil is open.
Defect of 
connection part or
defect of the
controller.
Change the capacitor 
after checking defect of 
capacitor.
Check whether the
washing clutch or the
washing tub is blocked 
Change the Ball Pressure
Sensor(Pressure Switch).
Explain “The lid is close
during operation”
Reconnect the conncetors.
Explain“The lid is close
during operation”
Change the Lid-B
Change the Ball Pressure
Sensor(Safety Switch).
Change the Clutch Housing Asm.
Change the drain motor.
Change the controller  after
checking connection parts.
Motor
1. In the case that the wash motor does not
spin during spin extraction;
1) Check there is motor working 
sound,or
2) If there is no  motor-working 
sound;
Check frequency of the 
Ball Pressure Sensor 
(Pressure Switch), under no load,
or
Check contact defect of the safety
switch, defect of connection parts
and whether the lid is open if door
error is displayed.
Is placed the magnetic in Lid-B.
Check resistance of the motor.
Drain Motor/Clutch
1. In the case the motor rotates but the 
inner tub does not rotates;
Check resistance of the drain 
motor if the drain motor doesn’t 
work,or
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