LG LSC27990TT Service Manual page 47

ICEMAKER ANDDISPENSER WORKING PRINCIPLES ANDREPAIR
2-5. Function TEST
1. This is a forced operation for TEST, Service, cleaning, etc. It is operated by pressing and holding the Fill Key for 3 seconds.
2. The test works only in the Icemaking Mode. It cannot be entered from the Harvest or Fill mode. (If there is an ERROR, it
can only be checked in the TEST mode.)
3. Caution! If the test is performed before water in the icemaker is frozen, the ejector will pass through the water. When the
Fill mode begins (Stage 4), unless the water supply has been shut off, added water will overflow into the ice bin. If the
control doesn't operate normally in the TEST mode, check and repair as needed.
4. After water is supplied, the normal CYCLE is followed: icemaking =-) Harvest =-) Fill --> Park Position.
5. Five seconds after Stage 5 is completed, the Ice Maker returns to MICOM control. The time needed to supply water
resets to the pre- test setting.
Diagnosis TABLE
STAGE ITEMS INDICATOR REMARKS
Five seconds after heater starts, a
1 HEATER heater will go off if the temperature by
sensor is higher than 20°C
Five seconds after heater starts, you
2 MOTOR can confirm that a motor is moving.
HALL IC I _ After the icemaker detects that ice has been
3 (detection of _ made, the motor and heater are off but on
position) standby until the cycle is cancelled.
HALL IC I1 You can confirm HALL IC detection of
4 (detection of position.
position)
Two seconds after detection of initial
5 VALVE position, you can confirm that valve is on.
6 Reset Return to Status prior to Five seconds after fifth stage is completed,
TEST MODE The icemaker resets to initial status.
3. DEFECT DIAGNOSIS FUNCTION
3-1. ERROR CODES shown on Icemaker water supply control panel
NO DIVISION INDICATOR CONTENTS REMARKS
Mark time to Display switch
1 Normal supply None operates properly
Icemaking _ Make sure that the wire
2 Sensor _ Open or short-circuited wire on each sensor is
malfunction connected.
ERROR indicators in table can be checked only in TEST mode.
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