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- 53 -

- 52 -

(HOME BAR-SENSOR)

(FREEZER-SENSOR)

(DEFROST-SENSOR)

MACHINE ROOM-FAN

MOTOR

DEFROST–HEATER

R-DOOR SWITCH

F-DOOR SWITCH

Refrigerator Compartment

Temperature Compensation

Freezer Compartment

Temperature Compensation

R20 10K

(VEGETABLE DUCT)

56

57

Freezer

Temp

Control

Refrigerator

Temp

Control

Power

Freezer

Crushed/Water/Cube

1. If test button in main PWB is pressed, it will sound “beep”.

2. If forced starting is selected, warning cycle will be repeated three times.  Each cycle has on for 0.2 second and off for 1.8

seconds.

3. If forced defrost is selected, warning cycle will be repeated three times. Each cycle has on for 0.2 second, off for 0.2

second, on for 0.2 second and off for 1.4 seconds.

1. Defrost starts when compressor operation time reaches between seven hours and seven hours and twenty minutes.

2. Defrost starts when compressor operation time reaches between four hours and four hours and twenty minutes when

power is first on or after a power cut.

3. Defrost shall stop when the defrost sensor temperature is more than 10

°

C. If the temperature of defrost sensor does not

reach to 10

°

C after two hours, faulty defrost will be displayed. 

4. If defrost sensor is faults (wire cut or short-circuit), defrost is not working.

Compressor, defrost heater, cooling fan (high speed), cooling fan (standard), electromagnetic single motor damper, etc. start
in the following sequence in order to protect noise and parts damage when power is first applied and when test is complete.

- 32 -

When

electricity

is
first

applied

TEST

MODE

When the
temperature of
defrost sensor is
above 10

°

C 

(when purchased

or moved to
another house)

If there is error in
function, initial
starting does not
work.

■

Load starting
sequence when
freezer and
refrigerator doors
are closed.

If switch is one more
pressed or the
temperature of
defrost sensor is
above +5

°

C in test

mode 2, it returns to
test mode and start
initial driving.
(compressor will start
after seven minutes)

When the
temperature of
defrost sensor is
below 10

°

C 

(during power cut

and service)

Test Mode 1
(Forced Starting)

Test Mode 2
(Forced Defrost)

0.5

sec

0.3

sec

0.3

sec

0.3

sec

0.5

sec

10

sec

0.3

sec

5

sec

5

sec

0.3

sec

20

sec

0.3

sec

0.3

sec

0.3

sec

0.3

sec

0.3

sec

0.3

sec

0.3

sec

0.3

sec

1. Trouble diagnosis function provides easy service when refrigerator is out of order during use.

2. When the refrigerator is out of order, the function does not carry on  even function control button is pressed but

recognition sound (bell sounds) shall be heard.

3. If troubles are solved, it returns to normal operation. (reset)

4. Trouble code is shown in the freezer temperature indicator LED in the refrigerator control display and all LEDs except

trouble code are off.

- 33 -

F4
F3
F2
F1

F

R

Trouble Code

Index

Trouble Code Index

Operation Status During Trouble

No.

Trouble Items

Troubles

Freezer

Defrost

Electronic single

F1      F2     F3     F4

Compressor

Fan

Heater

Damper

1

Abnormal freezer (F) 

Freezer sensor is cut or short-circuited

15 min on/ Standard

●

●

●

●

sensor 

15 min off

RPM

2

Abnormal refrigerator 

Upper shelf refrigerator sensor is cut or 

●

●

Standard

●

●

Note 2)

sensor 1 (R1) (upper 

short-circuited.

RPM

shelf in the refrigerator)

3

Abnormal refrigerator 

Note 1)

Lower shelf refrigerator sensor is cut or

●

●

Standard

●

●

●

●

sensor 2 (R2) (lower 

short-circuited.

RPM

shelf in the refrigerator)

4

Abnormal defrost 

Defrost sensor is cut or short-circuited

●

●

Standard No defrost

●

●

sensor

RPM

5

Faulty defrost

Defrost heater and temperature fuse are 

●

●

Standard

●

●

●

●

cut and disconnected. (indicates after at 

RPM

least four hours when troubles occur)

6

Abnormal electronic 

Faulty damper motor.  Lead wire of 

●

●

Standard

●

●

single motor damper

damper lead switch is cut or short-circuited. 

RPM

Interference of foreign materials in damper 
baffle or EPS

7

Abnormal room 

Note 1)

Room temperature  sensor is cut or 

●

●

●

●

●

●

●

●

temperature    

short-circuited.

sensor.

8

Abnormal home bar 

Note 1)

Home bar sensor is cut or short-circuited.

●

●

●

●

●

●

●

●

sensor

9

Abnormal icemaker 

Note 1)

Icemaker sensor is cut or short-circuited.

●

●

●

●

●

●

●

●

sensor

10

Abnormal icemaker 

Note 1)

Faulty motor or hall IC in icemaker unit. 

●

●

Standard

●

●

●

●

unit.

Lead wire is cut or short-circuited. 

RPM

Faulty motor driving circuits

:On

:Off

Check
operation
every hour
and reset
when it is
normal.

Note 1) The abnormality of room temperature sensor, refrigerator sensor 2, Home Bar Sensor, Icemaker Unit, and Icemaker

Sensor is not indicated in trouble code but it is indicated when checking LED (when pressing both freezer
temperature control button and power freeze button for more than one second at the same time).

Room Temperature Detection Sensor

Normal :  A  LED On

Abnormal :  A  LED Off

Refrigerator Sensor 2 (lower shelf)

Normal :  B  LED On

Abnormal :  B  LED Off

Home Bar Sensor

Normal :  C  LED On

Abnormal :  C  LED Off

Ice maker Unit

Normal :  D  LED On

Abnormal :  D  LED Off

Icemaker Sensor

Normal :  E  LED On

Abnormal :  E  LED Off

Note 2) If upper shelf refrigerator sensor is faulty, it is opened for 10 minutes and closed for 10 minutes.

1. Test function is to check functions of PWB and products and to find faulty parts in the refrigerator.

2. Test switch is on the main PWB in the refrigerator. Test mode completes and returns to the normal conditions after two

hours in maximum. 

3. During the test mode, function control button is not detected but button recognition sounds (bell sounds) are heard.

4. Please unplug power cord and then plug into the wall outlet to get normal conditions after test mode is completed.

5. If abnormal sensor is detected during test mode, test mode is canceled  and trouble code is indicated.

6. Test mode does not work even test switch is pressed when it indicates trouble code.

- 34 -

Test 1

Press test switch once.

1. Compressor continuously operates.

2. Freezer fan (high speed RPM) continuously 

operates.

3. Defrost Heater is off.

4. All display LEDs are on.

5. Electronic single motor damper is in open 

conditions.(baffle is open.)

Test 2

Press test switch once at 

1. Compressor is off.

It returns to normal 

test mode 1 conditions.

2. Freezer fan is off.

conditions when the 

3. Defrost heater is on.

temperature of defrost 

4. All display LEDs are off.

sensor is above 10

°

C.

(Freezer room  A  and Refrigerator room  B  

are only on.)

5. Electronic single motor  damper is all closed. 

(baffle is closed.)

Normal

Press test switch once 

Returns to the initial conditions.

Compressor starts after 

Conditions

at test mode 2 conditions.

seven minutes delay.