LG WF-T851 Service Manual page 59

12-14. Power is not automatically turned off.
Where, what & how to check?
Auto Off Switch (WF-T851/402)
1. Check whether there is
something to push the
power button.
2. Check coil resistance of the
auto-off-switch
12-15. Power is automatically turned off during operation or immediately
turning on the power button.
Where, what & how to check?
Mains voltage
1. It is mostly caused by noise from
mains or transient power cut.
Auto Off Switch or Controller(WF-T851/402)
1.Check whether power is
automatically tumed off when
turning on the power switch after
unplugging the power cord from
the outlet
Auto Power Relay or Controller
(Except for WF-T851, 402)
1.Check whether power is
automatically turned off when turning
on the power switch after unplugging
the power cord from the outlet.
2. It would be defect of the
controller if power is
automatically tumed off
immediately when turning on the
power switch even though there
is no defects in the power switch.
Result of Check Possible Cause
There is
something to
press it.
Coil is open.
° ƒ ß Ÿ
Defect of the
About 1ß⁄
controller
Result of Check Possible Cause
Defect in mains
Mechanical
Automatically
defect of the
tumed off
power switch
66
How to repair & settle
Remove it.
Remove the switch
Change the controller.
How to repair & settle
Explain the cause
(It happens specially
when a high
frequency
equipment is a used
around the washer or
in the case voltage
fluctuation is big.)
Change the switch.
Change the controller.