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Where, what & how to check?

Result of Check

Possible Cause

How to repair & settle

1. It is mostly caused by noise from

mains or transient power cut.

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.

Automatically 
tumed off

Defect in mains

Mechanical
defect of the
power switch

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.

Where, what & how to check?

Result of Check

Possible Cause How to repair & settle

1. Check whether the outer tub cover 

hit the top cover without load
during spin. 

Hit

Defect of the
Suspension

Change four 
suspensions
simultaneously.
(In assembling, check

the position to 
suspension asm)

It is very important to find out what kinds of noise & where comes from to settle

noise during spin and accumulately service experiance.

Problems

Result of check

How to repair and settle

• If the value is not within 1~26 by

checking  the controller group.

Recalibrate or replace the
controller.

• When checking the value of the

electrode sensor by Test mode during
the operation (washing, rinsing, spinning
etc.) of the washing machine, the
sensed value has no change.

Check the harness, 
clean the electrode of sensor
Stop the sensor working*

• Temperature sensor fault : “       ” displayed

Check the operation of temperature sensor
by the QC test mode.

*Stop/Reset the sensor: Stop or reset the sensor by entering Test mode.

Change the sensor or
controller 
Check the Harness 

• The difference between the sensing value

measured from the supplied water by a jig and
the sensor value of the product is 5 or more..

Change the sensor, 
clean the electrode of sensor
Stop the sensor working*

Problems

Result of check

How to repair and settle

• The difference between the sensing

value measured from the supplied water
by a jig and the sensor value of the
product is 5 or more..

Change the sensor, 
clean the electrode of sensor
Stop the sensor working*

• If the value measured from the jig is

normal but the consumer is not satisfied
with

Change the group of the
controller by entering Test
mode.**

**
- If a user wants to detect a Detergent more than the current one

: Increase the group value (by 1~2 step)

- If a user wants to detect a Detergent less than the current one

: Decrease the group value (by 1~2 step)

Turn the power switch on by pressing WATER LEVEL+STAIN LEVEL+RESERVATION button together.

Test mode : Only I-SENSOR LED is on and display shows current sensing mode

: temperature &  conductivity sensing is disabled

: temperature sensing is enabled, but conductivity is disabled.

: temperature &  conductivity sensing is enabled

1. Press WATER LEVEL BUTTON once:       

Press WATER LEVEL BUTTON again : power off

2. Press RINSE BUTTON once: 

Press RINSE BUTTON again : power off

3. Press START/PAUSE BUTTON once:  

Press START/PAUSE BUTTON again : power off

Turn the power switch on by pressing WATER LEVEL + PROGRAM and STAIN LEVEL button together.

Initial Test mode display : All LEDs are off,except I-SENSOR LED

Display the number of TR calibration times : Display “      ” means not calibrated, “     ” for the 
first time and so on.

1. Press Program button once: Display the current Controller Group (1~26)

Program button again : Decrease the controller group by one (display the changed group)
Program button to decrease by one

2. Press START/PAUSE button once : Display the current Controller Group (1~26)  

Press START/PAUSE button again : increase the controller group by one (display the changed group)
START/PAUSE button to increase by one

The buzzer sounds if there is no controller group.

Initial operation: Press "RESERVATION" + "START/PAUSE" botton together after power on, and  press
"RESERVATION" button only again
(displaying the number of pressing button and each data every 0.5 second)

Sensor

Terminal

of Controller

• Loosening the front panel of the washing machine

and connect the sensor connecting terminal with
the terminal of the jig.

After supplying water to the washing bath, agitate
for one minute before using the jig.
Record the sensed value of the sensor attached
to the current product at Test mode.
Connect the jig, put the jig sensor into the
washing bath, and record the sensed value of the
sensor.
Determine the sensor performance by comparing
the value measured by the jig and the value
measured by the sensor attached to the product.

1 times : TR Controller Group ( 1 ~ 26 )
2 times : Check the temperature sensor codition

0  : Normal

99 : Temperature senosr’s error, 

(Stop sensing for Temperature and Hardness)

3 times : Temperature of supplied water
4 times : Increment/decrement of washing time according to temperature
5 times : Washing stream at Motor off according to temperature
6 times : The number of comparing the conductivity of washing with rinsing conductvity 

0 ~ 9 : Normal

99 : Abnormal (Stop the sensing of Hardness)

7 times : Sensored result (0 ~ FF:  hexadecimal is displayed)

.
.
.

18 times : Initial stage