LG Electronics GR-P257/L257 Defect diagnosis function, Function TEST, Items, Indicator, Division

ICEMAKER AND DISPENSER WORKING PRINCIPLES 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 Water amount selection button 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 ice tray is frozen, the ejector will just 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.After Stage 5 is completed, the Ice Maker returns to MICOM control. The time needed to supply water resets to the pre- test setting.

6.This icemaker function test takes about 90 seconds in case, there aren’t ices in the ice tray. If there are ices in the ice tray, it can take more than 90 seconds.

Diagnosis TABLE

STAGE	ITEMS	INDICATOR	REMARKS
1	HEATER		Five seconds after heater starts, a
			heater will go off if the temperature by
			sensor is higher than 10°C
2	MOTOR		Five seconds after heater starts, you
			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.
4	HALL IC II		You can confirm HALL IC detection of
	(detection of
			position.
	position)
5	VALVE		Two seconds after detection of initial
			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
1	Normal	Mark time to		None	Display switch
			supply		operates properly
2	Icemaking			Open or short-circuited wire	Make sure that the wire
	Sensor				on each sensor is
	malfunction				connected.

ERROR indicators in table can be checked only in TEST mode.

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