Function Test; Diagnosis Table; Defect Diagnosis Function - LG LFX28977ST/01 Service Manual

9-2-4 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.
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 → Park Position → Fill.
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
1 HEATER
2 MOTOR
3 HALL IC I
4 HALL IC II
5 VALVE
6 Reset

9-3 DEFECT DIAGNOSIS FUNCTION

9-3-1 ERROR CODES shown on Ice Maker water supply control panel
NO DIVISION
1 Normal
Icemaking
Sensor
2
malfunction
INDICATOR
Return to Status prior to
TEST MODE
INDICATOR
Mark time to supply
Open or short-circuited wire
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REMARKS
Five seconds after heater starts, a
heater will go off if the temperature by
sensor is higher than 10°C
Five seconds after heater starts, you
can confirm that a motor is moving.
Check if Ice Bin is full or not.
If Ice bin is full, the motor and heater are
off and on stand by until Ice bin is empty.
You can confirm HALL IC detection of
start position.
Two seconds after detection of start
position, you can confirm that valve is on.
Five seconds after fifth stage is
completed, The icemaker resets to initial
status.
CONTENTS
Display switch operates
None
properly
Make sure that the wire on
each sensor is connected.
REMARKS