LG WT17DSBP, Руководство по обслуживанию, Страница: 35 / 50

2) Def ects on displa y ing f unction
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Only training and service purposes.
3) R eset During opera tion
Where, what & how to check? Result of Check Possible Cause How to repair & settle
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.
Controller
1. Defect of LED.
2. Defect of LED driving circuit.
3. Defect of micom.
Less than 85%
of the rating.
Less than 85%
of the rating
Low voltage.
The dia of the lead
wire is smaller or
many loads are
connected at the
same outlet
Defect of controller.
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.
Where, what & how to check? Result of Check Possible Cause How to repair & settle
Mains Voltage
1. Measure voltage of the outlet that the
washer is plugged into during wash and
spin.
time zone repeatedly.
3. Check whether a transfomerlent
power cut happens.
(Fluorescent lamp is
transfomeriently blinked.)
Less than
80% of the rating.
Mains voltage is too
low or size of a lead
wire is too small.
External noise
inrushed.
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.