LG WT901CW - Page 33

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4) Water doesn’t come into the wash bowl.
5) Water fills continuously or intermittently
Result of Check Possible Cause How to repair and settle
Wrong Installation/Leakage
1. Check whether the drain hose is
laying down on the floor.
(For pump model)
2. Check where water leaks.
Pressure sensor
(pressure switch)
1. Check the pulsator is rotating when
water fills continuously.
2. If there is no defect in the
pressure sensor (pressure switch),
check whether the air hole of the outer
tub is blocked.
Inlet Valve
1. Does water fills even though it is not
energized (power is off)?
Controller
1. Does water fill immediately after the
power switch turns on before pushing
the START/PAUSE button?
Drain hose
laying down.
Water leaks
from a part.
It doesn’t
rotate.
Blocked.
Water fills.
Wrong installation.
Defect of the part.
Water pressure is not
sensed.
Air hole blocked.
Defect of the inlet
valve.
Short circuit of the
triac of the
controller.
The drain hose should be
hung on the
stand-pipe or the tub.
Change the part.
Repair it.
Check the tube of the
pressure sensor
(pressure switch),
it is bent or blocked,
repair that.
Repair the blocked hole.
Change the inlet valve.
Change the controller.
Where, what, and how to check? Result of Check Possible Cause
(Pressure Switch)
1. Is there PE error on the display
which means pressure sensor
(pressure switch) error
2. Check frequency of the pressure
sensor (pressure switch)
without load if wash is proceeding
without filling.
Controller
1. Defect of controller is highly possible
if inlet valve and pressure
sensor have no defects in the above.
Reconnect the connector
or change leads. Change
the pressure sensor
(pressure switch)
if coil is open.
Change the
pressure sensor
(pressure switch).
Change the controller.
PE Error
displayed.
Less than
26.2 kHz.
Connector is taken
off, or lead or coil is
open.
Defect of the
pressure sensor
(pressure switch)
How to repair and settle
Pressure Sensor
Where, what, and how to check?