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Problems
Causes
Vibration sound. 1. Vibration of shelves and foods in
(Clunk)
the refrigerator.
2. Pipe interference and capillary
tube touching in the compressor.
compartment.
3. Compressor stopper vibration.
4. Moving wheel vibration.
5. Other structure and parts
vibration.
Irregular sound. 1. It is caused by heat expansion
(Click).
and contraction of evaporator,
shelves, and pipes in the
refrigerator.
Checks
1-1. Remove and replace the
shelves in the refrigerator
1-2. Check light food and container
on the shelves.
2-1. Touch pipes in the compressore
compartment with hands.
2-2 See if capillary tube touches
cover back.
3-1 Check for compressor stopper
vibration.
4-1 Check for vibration of front and
rear moving wheels.
5-1 Touch other structures and parts.
1-1 Check time and place of sound
sources.
Measures
1) Reassemble the vibrating parts
and insert foam or cushion where
vibration is severe.
2) Leave a clearance where parts
would otherwise interfere with
each other.
3) Reduce vibration with bushing
and restrainer if it is severe.
(especially, in compressor and
pipes).
4) Replace compressor stopper if it
vibtates severely.
1) Explain the principles of refrigeration
and that the temperature difference
between operation and defrosting
can produce sounds.
2) If evaporator pipe contacts with other
structures, leave a clearance between
them (freezer shroud or inner case).
Remarks
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