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(1) Function to make service easy in case of occuring a trouble in the product.

(2) When occurring a trouble, if the button is pushed, but the function could not operate.

(3) If a toruble release during the representation of trouble, a refrigerator performs the normal function(RESET).

(4) To represent a ERROR CODE, it use FREEZE TEMP LEDs on TOP COVER. If ERROR occurs, the other LEDs except

ERROR CODE LEDs are all off.

1

FREEZER

FREEZER SENSOR open 

SENSOR abnormal

or short.

O

O

2

DEFROST

DEFROST SENSOR open 

SENSOR abnormal

or short.

O

O

No defrosting

3

DEFROSTING

DEFROST HEATER, 

FUNCTION

TEMP. FUSE open or

is abnormal

disconnection (Displayed 
after at least 4 hours 

O

O

O

from the trouble's
occurring.)

4

RT-SENSOR NOTE 

1)

Room Temperature

abnormal

SENSOR open or short 

O

O

O

- 19 -

F1

ERROR CODE LEDs

F2

F3

F4

15 minutes On/
15 minutes Off

* 

NOTE 1) If one second pass after pressing the QUICK FREEZE and FREEZE TEMP buttons togather in normal

operation, operates as follow.  

If normal, LEDs on the TOP COVER is all on. 
If abnormal, LEDs are all on except VACATION LED.

RT-SENSOR

:ON

O : OPERATE NORMAL

:OFF

(1) Function to check the testing function of PCB and refrigerator and to find where the trouble.

(2) The test switch is on the MAIN PCB of refrigerator.

TEST FUNCTION is released and RESET after MAX. 2hours regardless of TEST MODE.

(3) If the buttons on TOP COVER is pushed during TEST MODE, Function is not operated and only BUZZER ring with

"DING~ DONG~"

(4) After the end of TEST MODE, pull out the power cord and plug it in again(RESET).

(5) If a ERROR occurs during the TEST MODE, TEST FUNCTION is released and DISPLAY LEDs represent ERROR

CODE.

(6) If the TEST swithch is pushed during ERROR CODE, TEST FUNCTION is not operated.

TEST 1

Press TEST button 

1. COMP OPERATES SUCCESSIVELY.

once.

2. FAN OPERATES SUCCESSIVELY.
3. DEFROSTING HEATER OFF
4. ALL DISPLAY LEDS ON.

TEST 2

Press TEST button

1. COMP OFF.

If DEFROST HEATER 

once in the state of 

2. FAN OFF.

is over 7

°

C, it returns 

TEST MODE 1.

3. DEFROST HEATER ON.

to the NORMAL STATE.

4. ALL THE DISPLAY LEDS OFF EXCEPT 

QUICK FREEZE AND VACATION LEDS.

NORMAL

Press TEST button 

Return to the  initial condition. 

Comp starts 

STATE

once in the state of  

(RESET)

after 7 minutes.

TEST MODE 2.

- 20 -

• LED Check Function : Press the QUICK FREEZE and FREEZE TEMP buttons at the same time. After 1 sec., all the

LEDs of the DISPLAY are ON simultaneously. If release the BUTTON, return to the previous
condition.

NOTE : This is a basic model. The shape of refrigerator is subject to change.

- 5 -

L

Used to keep fruits

and vegetables, etc.

fresh and crisp.

NOTCH

TEMP(˚C)

ROOM

Min

Min/

Mid

Mid

Mid/
Max

Max

-15

-16.5

-18

-19.5 

FREEZER

-22

This description is made for GR-349, 389SQ. Please refer to overall PCB circuits for other models.

(1) The refrigerator starts from optimum condition when electric power is first on. But the operation condition changes "Mid"

➝

"Mid/Max" 

➝

"Max" 

➝

"Min" 

➝

"Min/Mid" 

➝

"Mid" whenever pressing the FREEZE TEMP button.

(2) It returns to "Mid" conditions if power off and on again.

- 17 -

(1) Function to raise the freezing speed by operating the COMP successively. As pressing the QUICK FREEZE button, the

QUICK FREEZE LED is displayed. Then after 3 hours' successive operation of COMP, the QUICK FREEZING function
will be released.

(2) Defrosting During the QUICK FREEZING operates as follow.

When the QUICK FREEZING time is below 90 minutes, defrost and then operate the QUICK FREEZING for the
remaining time. When the QUICK FREEZING time is over 90 minutes, defrost and then operate the QUICK FREEZING
for 2 hours

(3) If QUICK FREEZE button is pressed during defrosting, the QUICK FREEZE LED is lit up. But the QUICK FREEZING

operates for 3 hours after 7 minutes from the end of defrosting.

(4) If VACATION button is pressed during the QUICK FREEZING, the QUICK FREEZING LED function is released.

(5) If power off during the QUICK FREEZING and power on again, the QUICK FREEZING function is released.

(1) Function for Energy Saving. As pressing the VACATION button, the VACATION LED is displayed and this function is

operated.

(2) Freezer Compartment is not kept by compressor at the notch displayed but at -13

°

C

±

differential.

(3) Defrosting and Fan control is same as normal operation.

(4) If QUICK FREEZE button is pressed during the VACATION FUNCTION, VACATION FUNCTION is released.

(5) If power off during the VACATION FUNCTION and power on again, the VACATION FUNCTION is released.