LG WF-T851 Service Manual page 55

12-8.Water drains though it is not the time of drain.
Where, what & how to check?
Drain Hose
1. Check whether the drain hose is
installed properly so that the
discharge hight is about 0.9~1.2m
from the floor.
Controller
1. Check whether the drain motor
or the drain pumpworks
immediately after power is
turned on.
12-9. Drain error happens while water drains normally.
Where, what & how to check?
Pressure Switch
1. Check generation frequency of the
pressure switch without water.
Result of Check Possible Cause How to repair & settle
The discharge
Wrong installation
height is lower
of the drain hose.
than
recommendation.
Works
Defect of the
controller.(Triac
defect)
Result of Check Possible Cause How to repair & settle
Defect of the
Less than
26.3 kHz pressure switch.
Defect of the
26.3~27.1 kHz
controller.
62
Put the outlet of drain
hose between 0.9m and
1.2m.
Change the controller.
Change the pressure
switch.
Change the controller.