LG GC-B359B, Service Manual

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8) 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 the door is pushed during TEST MODE, Function is not operated and only BUZZER ring with "DING~"
(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.
• LED Check Function : Press the QUICK FREEZE and FREEZE TEMP buttons at the same time, all the LEDs of the DISPLAY are
ON simultaneously. (This operation must be completed in ten seconds after the power is on.)
When it is ten senconds after the power is on, return to the previous condition.
MODE OPERATION CONTENTS REMARKS
TEST 1
TEST 2
NORMAL
STATE
Press TEST button
once.
Press TEST button once
in the state of TEST
MODE 1.
Press TEST button once
in the state of TEST
MODE 2.
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
QUICK FREEZE AND VACATION LEDS.
Return to the initial condition. (RESET)
If DEFROST HEATER is
over 7°C, it returns to the
NORMAL STATE.
Comp starts
after 7 minutes.
ERROR CODE LEDs
OPERATION IN TROUBLE'S OCCURRING
NO. ITEMS DESCRIPTION
COMP FAN DEFROST HEATER
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
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
O : OPERATE NORMAL