LG WFS1939EKD Service Manual page 47

4) Water doesn't come into the wash tub.
Where, what & how to check?
Inlet Valve
1. If water doesn ʼ t come though the inlet
valve works(electric sound occurs)
1) Check whether water mains is cut.
2) Check whether tabs are turned on.
3) HOT & COLD tab are opposite
connected.
4) Wrongly select Water Temperature
option.
5) If there are no problems in the above,
check the inlet valve filters after
disconnecting the water supply hoses.
6) If there are no problems in the above a
diaphragm hole in the valve is blocked
by foreign substance or the plunger in it
is locked.
2. If the inlet valve doesn't work(there is no
electric sound)during filling cycle.
1) Check whether it ʼ s connectors are taken
off or they have poor connection.
2) Check resistance of the inlet valve.
Pressure Switch
1. Is there PE error on the display which
means Ball Pressure Senosr (Pressure
Switch) error
2. Check frequency of the Ball Pressure
Sensor(Pressure Switch) without load if
wash is proceeding without filling.
Controller
1. Defect of controller is highly possible if
inlet valve and Ball Pressure Sensor
have no defects in the above.
Result of Check
Water mains cut. Mains cut.
Dont tumed on. Mistake of use.
Connected opposite. Wrong installation.
Selected opposite.
Mistake of use.
Filters blocked by
Don
foreign substance.
Defect of the inlet valve.
A connector is taken
Defect of contact.
off.
∞ Ω Coil is open
PE Error displayed. Connector is taken off, or
lead or coil is open.
Less then 26.2 kHz Defect of the Ball Pressure
Sensor (Pressure Switch)
46
How to repair & settle
Possible Cause
Explain.
Turn on the tap.
Correct their locations and
turn on the tap.
Explain how to use.
Clean them by brush and
t clean.
ʼ
explain cleaning regulary
them.
Change the inlet valve.
Reconnect it or remove
the causes to make poor
connection.
Change the inlet valve.
Reconnect the connector or
change leads. Change the
Ball Pressure Sensor
(Pressure Switch) if coil is
open.
Change the Ball Pressure
Sensor (Pressure Switch).
Change the controller.