LG WTV09BSL Service Manual page 47

8) W a t e r d r a in s t h o u g h it is n o t t h e t im e o f d r a in .
Where, what & how to check?
Drain Motor
(for Non-Pump Model only)
1. Check whether the drain motor is
normally returned after turning
power off.
(It is considered normal if the lever
of the drain motor is fully pulled out
by the PV spring)
PV Case
1. If water drains though the drain
motor is normally returned, check
whether PV asm is blocked by
foreign objects or the bellows in
the PV asm is deformed.
Controller
1. Check whether the drain motor or
the drain pump works immediately
after power is turned on.
9) D r a in e r ro r h a ppe n s w h ile w a t e r d r a in s n o r m a lly.
Where, what & how to check?
Ball Pressure Sensor
(Pressure Switch)
1. Check generation frequency of the
Ball Pressure Sensor
(Pressure Switch) without water.
Result of Check Possible Cause How to repair & settle
Blocked.
Blocked.
Bellows
deformed.
Works.
Result of Check Possible Cause How to repair & settle
Less than
26.3 kHz
26.3~27.1 kHz
46
Change the drain motor.
Defect of the drain
motor.
Remove the objects in
the PV asm.
Change the PV bellows.
Defect of PV
(The bellows may swell
Bellows.
up if it contact petroleum
or petrochemical
substance because it is
made of rubber)
Change the controller.
Defect of the
controller(Triac
defect)
Defect of the
Change the Ball
Ball Pressure
Pressure Sensor
Sensor(Pressure
(Pressure Swtich)
Switch).
Change the controller.
Defect of the
controller.