LG LSC27990TT Service Manual page 19

MICOM FUNCTION
ALL DISPLAYPARTSTURN OFF OTHERTHAN FREEZER ROOMNOTCH TEMPERATUREDISPLAYAND REFRIGERATORROOM NOTCH TEMPERATUREDISPLAY(FAILURECODE INDICATIONPART)
IN CASEOF INDICATINGFAILURE MODES(EXCEPT FORNOTE1, NOTE2)
NOTE1 ) FREEZER ROOM NOTCHTEMPERATUREDISPLAY AND REFRIGERATORROOMNOTCH TEMPERATUREDISPLAY(FAILURECODE INDICATIONPART)ARE NORMALLY INDICATED INABNORMAL
AMBIENT SENSOR, AND "Er" INDICATED ON THE AMBIENT TEMPERATUREDISPLAY(EXCEPTFORTHE AMBIENT TEMPERATUREDISPLAY,OTHER DISPLAY PARTSARE INDICATED NORMALLY)
NOTE 2) R2-SENSOR, WATER-TANK SENSOR AND OPTICHILL SENSOR IS NOT INDICATED ON THE FAILURE INDICATING PART BUT INDICATED IN CHECKING ALL DISPLAY PARTS
(WHEN PRESSING THE TEMPERATRUE AND 4)) _ BUTTON IN THE LOCK STATUS FOR MORE THAN 1 SECOND).
R2-SENSOR(MIDDLE ROOM) [- N O R U A L : DISPLAY PART GRAPHIC ON THE ,_/C_ PARTTURNS ON
ABNORMAL DISPLAY PART GRAPHIC ON THE _C)PART TURNS OFF
WATER-TANKSENSOR [- N O R M A L : DISPLAYPARTGRAPHICONTHE_.)_ PARTTURNSON
ABNORMAL DISPLAY PART GRAPHIC ON THE @ PART TURNS OFF THE OTHER DISPLAY GRAPHICS TURN ON
OPTI-FRESH SENSOR [- N O R M A L : DISPLAYPARTGRAPHICONTHE(E_PARTTURNSON
ABNORMAL DISPLAY PART GRAPHIC ON THE ,_F_ PART TURNS OFF
(2)TEST FUNCTION
TESTKEYEXISTS ONPWBASSY, M AINBOARD.
MODE OPERATION CONTENTS REMARKS
1. CONTINUOUS OPERATION OF COMPRESSOR 4. MAIN STEPPING MOTOR DAMPER IS COMPLETELY
PRESS TEST BUTTON ONCE 2. CONTINUOUS OPERATION OF FREEZING BLDC MOTOR OPENED (OPEN OF BAFFLE) FREEZING FAN TURNS OFF
TEST1 <STRONG COLD MOOE> (HIGH-SPEED RPM) AND COOLING BLDC MOTOR 5. ALL DISPLAY GRAPHICS TURNS ON IN DOOR OPENING
3. DEFROST HEATER TURNS OFF
PRESS TEST BUTON ONCE AT THE TEST 1. COMPRESSOR OFF 4. MAIN STEPPING MOTOR DAMPER IS COMPLETELY RETURN TO THE NORMAL
TEST2 MODE 1 S-ATUS 2. FREEZING BLDC MOTOR AND COOLING BLDC MOTOR CLOSED (CLOSING OF BAFFLE) MODE WHEN THE
<FORCED DEFROST MODE> TURN OFF 5. ALL DISPLAY GRAPHICS TURNS OFF (ONLY "FAILURE CODE DEFROST SENSOR IS
3. DEFROST HEATER TURNS ON INDICATION PART"TURNS ON FOR '22"STATUS) ABOVE +S°C
NORMAL PRESS TEST 8UTON ONCE AT THE TEST COMPERSSOR WILL OPERATE
STATUS MODE 2 STATUS RETRUING TO INITIAL STATUS AFTER DELAY FOR 7 MINUTES
;_-" L CD check function: If simultaneously pressing TEMPERATURE and 4 ))_' button for a second in the lock status, a
back light is turned on and all display LCD graphics on. If releasing the button, the LCD graphic
displays the previous status.
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