LG Electronics GR-P257/L257 Trouble Diagnosis, Claims, Causes And Check Points, How To Check

TROUBLE DIAGNOSIS

CLAIMS.			CAUSES AND CHECK POINTS.			HOW TO CHECK
3. Refrigeration	4) No cooling air circulation.
is weak.		Faulty fan motor.	Fan is		Fan shroud contact. - Clearance.
			constrained.		Damping evaporator contact.
					Accumulated residual frost.
		Small cooling air	Insufficient		Fan overload. - Fan misuse.
		discharge.	motor RPM		Bad low termperature RPM characteristics.
					Rated power misuse.
			Faulty fan.		Low voltage.
				Fan misuse.
				Bad shape.
				Loose connection. - Not tightly connected.
				Insert depth.

Shorud. Bent.

Ice and foreign materials on rotating parts.

5)Compressor capacity. Rating misuse. Small capacity. Low valtage.

6)	Refrigerant				Malfunction of charging cylinder.
	too much or too little.				Wrong setting of refrigerant.
					Insufficient compressor. - Faulty compressor.
7)	Continuous operation
	- No contact of temperature controller. - Foreign materials.
						■ Check visually after
						disassembly.
8)	Damper opens continuously.
		Foreign materials		P/U liquid dump.		■ Check visually after
		jammed.		EPS water sediment.		disassembly.
				Screw.
		Failed sensor. - Position of sensor.
		Characteristics	Bad characteristics of its own temperatue.
		of damper.	Parts misuse.
			Charge of temperature - Impact.
			characteristics.
9)	Food storing place. - Near the outlet of cooling air.

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