LG Electronics GR-P257/L257 Sound, Trouble Diagnosis, Problems, Causes, Checks, Measures, Remarks

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2-7. Sound

Problems	Causes		Checks		Measures	Remarks
"Whizz" sound	1. Loud sound of compressor	1.1 Check the level of the		1)	Maintain horizontal level.
	operation.		refrigerator.	2)	Replace rubber and seat if they
		1.2	Check the rubber seat		are sagged and aged.
			conditions (sagging and aging).	3)	Insert rubber where hand contact
					reduces noise in the pipe.
	2. Pipes resonat sound which is	2.1 Check the level of pipes		4)	Avoid pipe interference.
	connected to the compressor.		connected to the compressor	5)	Replace defective fan and fan
			and their interference.		motor.
		2.2	Check rubber inserting	6)	Adjust fan to be in the center of
			conditions in pipes.		bell mouth of the fan guide.
		2.3	Touch pipes with hands or screw	7)	Leve a clearance between
			-driver (check the change of		interfering parts and seal gaps in
			sound).		the structures.
				8)	Reassemble the parts which make
	3. Fan operation sound in the freezer	3.1 Check fan insertion depth and			sound.
	compartment.		blade damage.	9)	Leave a clearance if evaporator
		3.2	Check the interference with		pipes and suction pipe touch
			structures.		freezer shroud.
		3.3	Check fan motor.
		3.4	Check fan motor rubber insertion
			and aging conditions.
	4. Fan operation sound in the	4.1 Same as fan confirmation in the
	compressor compartment.		refrigerator.
		4.2	Check drip tray leg insertion.
		4.3	Check the screw fastening
			conditions at condenser and
			drip tray.

TROUBLE DIAGNOSIS