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Problems

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

Where, what & how to check?

Result of Check

Possible Cause

How to repair & settle

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

Mechanical defect of the
power switch

Change the switch.

Change the controller.

(1) Malfunction

Result of Check

How to repair & settle

Assembling the not- calibrated
controller.

Short 

The sensor is automatically stopped by
the accumulated foreign materials.

Sensor is out of order 

• If the value is not within 1~26 by

checking the controller group.

• 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.

• 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.. 

• Temperature sensor fault : “        ”

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

Recalibrate or replace the controller.

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

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

Change the sensor or controller
Check the Harness

(2) Inaccurate detecting

(3) How to change Controller Group

Problems

Result of Check

How to repair & settle

the accumulated foreign materials on
the sensor

Inaccurate detecting

• 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..

• If the value measured from the jig is

normal but the consumer is not
satisfied with

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

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 WASH +PROGRAM and Reservation button together.

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

Display the number of TR calibration times : Display “ 

0

” means not calibrated, “ 

1

” for the first time and so on.

The buzzer sounds if there is no controller group.

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)(1~26)

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

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