LG GR-349SQF Service Manual page 20

9) FUNCTION TEST
(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.
MODE
TEST 1 Press TEST button
once.
TEST 2 Press TEST button
once in the state of
TEST MODE 1.
NORMAL Press TEST button
STATE once in the state of
TEST MODE 2.
¥ LED Check Function : Press the QUICK FREEZE and FREEZE TEMP buttons at the same time. After 1 sec., all the
OPERATION
1. COMP OPERATES SUCCESSIVELY.
2. FAN OPERATES SUCCESSIVELY.
3. DEFROSTING HEATER OFF
4. ALL DISPLAY LEDS ON.
1. COMP OFF.
2. FAN OFF.
3. DEFROST HEATER ON.
4. ALL THE DISPLAY LEDS OFF EXCEPT
Return to the initial condition.
(RESET)
LEDs of the DISPLAY are ON simultaneously. If release the BUTTON, return to the previous
condition.
CONTENTS
QUICK FREEZE AND VACATION LEDS.
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REMARKS
If DEFROST HEATER
is over 7¡C, it returns
to the NORMAL STATE.
Comp starts
after 7 minutes.