Reset During Operation - LG WF-T6600PP Service Manual

2) Defects on displaying function
Where, what & how to check?
Main voltage
1. Measure mains voltage at the wall
outlet
2. Meaure voltage at the extended
outlet that the washer is plugged in
if the extended outlet is used and
voltage at the electrical outlet
is normal in the above.
Transfomer
1. Measure the secondary voltage of
the transfomer.
Controller
1. Defect of LED.
2. Defect of LED driving circuit.
3. Defect of micom.

3) Reset During operation

Where, what & how to check?
Mains Voltage
1. Measure voltage of the outlet that the
washer is plugged into during wash and
spin.
2. Reset symptom happens at specific
time zone repeatedly.
3. Check whether a transfomerlent
power cut happens.
(Fluorescent lamp is
transfomeriently blinked.)
Result of Check Possible Cause
Less than 85% Low voltage.
of the rating.
Less than 85% The dia of the lead
of the rating wire is smaller or
many loads are
connected at the
same outlet
Defect of the
Less than
transfomer.
AC 10V
Defect of controller.
Result of Check Possible Cause
Less than Mains voltage is too
80% of the rating. low or size of a lead
wire is too small.
External noise
inrushed.
37
How to repair & settle
To explain that it is
caused by low voltage in
electric supply and
recommend using a
transfomer if voltage has
been continuously low.
To use a transfomer
having a enough
capacity if using
a transfomer.
Change the controller.
Change the controller.
How to repair & settle
Explain that it is caused
by low voltage in electric
mains and recommend
using a suitable size of
leads.
Explain it is caused by
using environment.
(It happens when
equipment with high
frequency is used
around)
Explain it is a problem of
electric supply
environment.