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