Defect Diagnosis Functions - LG LSSB2691ST Service Manual

ICEMAKER AND DISPENSER WORKING OPERATION AND REPAIR
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 code, 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 icemaker returns to MICOM control. The time needed to supply water resets
to the pretest setting.
Diagnosis TABLE
STAGE ITEMS
1 HEATER
2 MOTOR
HALL IC I
3
(detection of
position)
HALL IC II
4
(detection of
position)
5 VALVE
6 Reset
3. DEFECT DIAGNOSIS FUNCTION
3-1. Error codes shown on Icemaker water supply control panel
NO DIVISION
1 Normal
Icemaking
Sensor
2
malfunction
Flow sensor
3
malfunction
Error indicators in table can be checked only in TEST mode.
INDICATOR
Return to Status prior to
TEST MODE
INDICATOR
Mark time to supply
Open or short-circuited wire
Open or short-circuited wire
Low presure of water
No change for 2 seconds
Five seconds after heater starts, a heater
will go off if the temperature of sensor is
higher than 10°C
Five seconds after heater starts, you can
confirm that a motor is moving.
After the icemaker detects that ice has
been made, the motor and heater are off
but on standby until the cycle is cancelled.
You can confirm HALL IC detection of
position.
Two seconds after detection of initial
position, you can confirm that valve is on.
Five seconds after fifth stage is
completed, The icemaker resets to initial
status.
CONTENTS
None
21
REMARKS
REMARKS
Display switch
operates properly
Make sure that the wire
on each sensor is
connected.