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Where, what & how to check?

Result of Check

Possible Cause

How to repair & settle

1. Check whether connection between

the plug and the electrical is poor

2.  Measure voltage of the electrical.

1. Measure resistance between both 

ends of the power supply cord with 
both the plug pins short-circuited.

2. Check whether every connector in 

the bundle of connectors has a 
good connection.

3. Check resistance of every wire to 

find out a open wire.

1. Check resistance with  power relay 

switch turned on

2. Check the secondary voltage of the 

transfomer.

3. Measure resistance to check 

whether the T.P of the motor is 
blown out.

4. Check whether the fuse is open.

If there are no defects in the above, 

it should be defect of the controller.

If  supply  voltage  is  120%  higher  than
rating the varistar in the controller may
be broken. Check supply voltage.

Poor

Around rating

0V

Less than 1

Male & female
connectors
separated

Less than 0.5

More than 1.0

10~14V

0V

motor is hot

Open

Over 120%
voltage than 
rating check

Defect of the 
electrical

No defect

Defect of household
power supply

No defect

Open  circuit  of  the
power supply cord

Poor connection.

Wire is opened.

No defect

Poor contact

No defect

Coil is open

T.P blown out

Defect of the fuse

Change the electrical.

Call for power supply 
company

Change the power 
supply cord.

Remove the cause to 
give strain and 
reconnect them.

Change the lead wire.

Change the Auto Off 
Switch

Change the

transfomerformer.

Remove cause to 
overload the motor

Change the fuse.
CAUTION
Check the fuse rating
AC100~127V:125V 12A
AC220~240V:250V   6A

Change the controller
if all the electrical parts 
have no defects.

Where, what & how to check?

Result of Check

Possible Cause

How to repair & settle

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.

1. Measure the secondary voltage of 

the transfomer.

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

Less than

AC 10V

Low voltage. 

The dia of the lead 
wire is smaller or 
many loads are 
connected at the 
same outlet

Defect of the
transfomer.

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.

Change the controller.

Where, what & how to check?

Result of Check

Possible Cause

How to repair & settle

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.)

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.

Where, what & how to check?

Result of Check

Possible Cause

How to repair & settle

1. If water doesn’t come though the 

inlet valve works(electric sound 
occurs)

1) Check whether water mains is cut.

2) Check whether tabs are turned on.

3) Hot & cold tab are opposite

connected.

4) Wrongly select water temperature

option.

5) If there are no problems in the 

above, check the inlet valve filters 
after disconnecting the water supply

hoses.

6) If there are no problems in the 

above a diaphragm hole in the valve
is blocked  by foreign substance or 
the plunger in it is locked.

2. If the inlet valve doesn’t work(there 

is no electric sound)during filling 
cycle.

1) Check whether it’s connectors are 

taken off or they have poor 

connection. 

2) Check resistance of the inlet valve.

Water mains cut.

Don’t tumed on.

Connected
opposite.

Selected 
opposite.

Filters blocked
by foreign
substance.

A connector is
taken off.

Mains cut. 

Mistake of use.

Wrong installation.

Mistake of use.

Don’t clean.

Defect of the

inlet valve.

Defect of contact.

Coil is open

Explain.

Turn on the tap.

Correct their locations
and turn on the tap.

Explain how to use. 

Clean them by brush 
and explain cleaning 
regulary them.

Change the inlet valve.

Reconnect it or remove
the causes to make poor 
connection.

Change the inlet valve.

Where, what & how to check?

Result of Check

Possible Cause

How to repair & settle

1. Operate washer setting spin only, 

then  press the start/pause button 
when the  wash motor starts to work 
and then press the start/pause 
button again in order for the drain 
motor to work intermittently.

1. If mains voltage and the drain motor 

have no defects a defect of the 
controller is highly possible.

Reset  happens
after  the  drain
motor works.

Defect of the drain 
motor (A noise 
generated when the 
internal relay 
works.)

Change the drain motor

Change the controller.

Where, what & how to check?

Result of Check

Possible Cause

How to repair & settle

1. Check whether the drain hose is 

laying down on the floor. 

(For pump model)

2. Check where water leaks.

1. Check the pulsator is rotating when 

water fills continuously.

2. If there is no defect in the Ball

Pressure Sensor(Pressure Switch),
check whether the air hole of the outer
tub is blocked.

1. Does water fills even though it is not

energized (power is off)?

1. Does water fill immediately after the

power switch turns on before pushing 
the start/pause button.

Drain hose 
laying down.

Water leaks 
from a part.

It doesn’t 
rotate.

Blocked.

Water fills.

Wrong  installation. 

Defect of the part.

Water pressure is not
sensed.

Air hole blocked.

Defect of the inlet
valve.

Short circuit of the 
triac of the 
controller.

The drain hose  should  be
hung on the 
stand-pipe or the tub.

Change the part.

Repair it.

Check the tube of the  
Ball Pressure Sensor
(Pressure Switch), it is
bent or blocked, repair
that.

Repair the blocked hole.

Change the inlet valve.

Change the controller.

Where, what & how to check?

Result of Check

Possible Cause

How to repair & settle

1. Is there PE error on the display 

which means Ball Pressure Senosr
(Pressure Switch) error

2. Check frequency of the Ball

Pressure Sensor(Pressure Switch)
without load if wash is proceeding
without filling.

1. Defect of controller is highly possible

if inlet valve and Ball Pressure
Sensor have no defects in the
above.

Reconnect the connector
or change leads. Change
the Ball Pressure Sensor
(Pressure Switch)

if coil is open. 

Change the 
Ball Pressure Sensor
(Pressure Switch).

Change the controller.

PE Error 
displayed. 

Less then 
26.2

Connector is taken
off, or lead or coil is
open.

Defect of the Ball
Pressure Sensor
(Pressure Switch)