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Problems
Causes
Whining Sound It happens when refrigerant expands - Check the sound of refrigerant at the
(almost the same at the end of capillary tube.
as animals crying
sound).
Water boiling or
This happens when refrigerant passes
flowing sound.
orifice in accumulator's internal pipes
due to the pressure difference between
condenser and evaporator.
Sound of whistle
When door closes, the internal pressure
when door
of the refrigerator decreases sharply
closes.
below atomosphere and sucks air into
the refrigerator, making the whistle
sound.
Checks
initial installation.
- Check the sound when the refrigerator
starts operation after forced defrosting. - If sound is continuous and servere, insert
- Check the restrainer attachment
conditions on the evaporator and
capillary tube weld joints.
- Check for the sound when compressor - Explain the principles of freezing cycles
is turns on.
- Check for the sound when compressor
is turns off.
- Check the sound by opening and
closing the refrigerator or freezer doors.
Measures
- Check the restrainer attached on the
evaporator and capillary tube weld
joints and attach another restrainer.
capillary tube again (depth 15±3mm)
- Fasten the capillary tube to suction
pipes or detach in the compressor
compartment.
- Explain the principles of the freezing
cycle.
and refrigerant flowing phenomenon by
internal pressure difference.
- If sound is servere, wrap the
accumulator with foam and restrainer.
- Broaden the cap of discharge hose for
defrosting in the compressor
compartment.
- Seal the gap with sealant between out
and inner cases of hinge in the door.
Remarks
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