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f
Co
Problems
Chocks
Measures
Remarks
Sound"Burping"
(almo_ the same
as animals crying
sound).
Waterboilingor
flowingsound.
Sound of whistle
when door
doses.
Causes
It happens
when
refrigerant
expands
at the end of capillary
tube.
]t happens when refrigerant passes
orifice in accumulator intemat pipes by
the pressure difference between
condenser and evaporator.
When door closes, the internal prossure
of the refrigerator decreases sharply
below atomosphere and sucksair into
the refrigerator, making the whistle
sound.
- Check the sound of refrigerant at the
initial installation.
- Check the sound when the refrigerator
starts operation after forced defrosting.
- Check the restrainer attachment
conditionson the evaporator and
capillarytube weld joints.
- Check the sound when compressor is
turned on.
- Check the sound when compressor is
turned off.
- Cheekthesound by openingand
closingthe refrigeratoror freezerdoors.
- Check the restrainer attached on the
evaporator and capillary tube weld
joints and attach another restrainer.
- tt it is continuous and servere, insert
capillarytube again (depth:t5±3mm)
• Fasten the capillarytube to auG{on
pipes or detach in the compressor
compartment.
- Explain the principles of freezing
cycles.
- Explain the principles of freezing cycles
and refrigerant flowingphenomenon by
internal pressure difference.
- If sound is servero, wrap the
accumulator with foam and restrainer.
- Broaden the cap of discharge hose for
defrostingin the compressor
compartment.
- Seal the gap with sealant between out
and inner cases of hinge in door.
=-
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