Read LG WT-W7111TH Service Manual online
34
12-5. Water fills continuously or intermittently.
Where, what & how to check?
Result of Check
Possible Cause
How to repair & 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 Switch
1. Check the pulsator is rotating when
water fills continuously.
2. If there is no defect in the pressure
swith, check whether the air hole of
the outer tub is blocked.
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.
the start/pause button.
Drain hose
laying down.
laying down.
Water leaks
from a part.
from a part.
It doesn’t
rotate.
rotate.
Blocked.
Water fills.
Wrong installation.
Defect of the part.
Water pressure is
not sensed.
not sensed.
Air hole blocked.
Defect of the inlet
valve.
valve.
Short circuit of the
triac of the
controller.
triac of the
controller.
The drain hose
should be hung on the
stand-pipe or the tub.
should be hung on the
stand-pipe or the tub.
Change the part.
Repair it.
Check the tube of the
pressure swith,if it is bent
or blocked, repair that.
pressure swith,if it is bent
or blocked, repair that.
Repair the blocked hole.
Change the inlet valve.
Change the controller.
12-4. Water doesn’t come into the wash bowl.
Where, what & how to check?
Result of Check
Possible Cause
How to repair & settle
Pressure Switch
1. Is there PE error on the display
which means pressure switch error
2. Check frequency of the pressure
switch without load if wash is
proceeding without filling.
proceeding without filling.
Controller
1. Defect of controller is highly possible
if inlet valve and pressure switch have
no defects in the above.
if inlet valve and pressure switch have
no defects in the above.
Reconnect the connector
or change leads. Change
the pressure switch if coil
is open.
or change leads. Change
the pressure switch if coil
is open.
Change the pressure
switch.
switch.
Change the controller.
PE Error
displayed.
displayed.
Less then
26.2
26.2
Connector is taken
off, or lead or coil is
open.
off, or lead or coil is
open.
Defect of the
pressure switch.
pressure switch.
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