Haier 102102429 Service Manual

Download Service manual of Haier 102102429 Refrigerator for Free or View it Online on All-Guides.com.

Brand: Haier

Category: Refrigerator

Type: Service manual for Haier 102102429

Pages: 35 (0.83 Mb)

Download Haier 102102429 Service manual

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16
5 Normal Phenomena—Not Troubles for Refrigerators
In a domestic refrigerator, there is not only a complicated electric control
system, but also a refrigerating system that is difficult to discern whether it
is in a good working condition. Both the systems are related and affect
each other. If a certain part of a refrigerator works abnormally .Its
refrigerating efficiency will decrease ,operation properties will become
unstable ,or even it cannot be used normally for those serious cases.
Refrigerators are generally of larger volume ,once troubles appear ,to
send them to a service department is really a tough thing ,if such is the
case ,the user will always be in suspense ,sometimes ,normal phenomena
will be erroneously regarded as troubles .Therefore ,before we deal with
the topics of frequently occurring troubles of refrigerators and their
remedies ,we should firstly give a brief account of some normal
phenomena which are not troubles .In case any one of such phenomena
occurs ,there is no need to worry about it ,and the user can use it at total
ease .
1).When the compressor of a refrigerator has just stopped running ,a
rumbling sound can be heard from inside its evaporator .This is a sound
caused by the flowing of refrigerant in the evaporator tubing .Because the
pressure difference is still greater after the compressor has just stopped
running ,the refrigerant will flow for a certain time , therefore ,this sound is a
normal phenomenon.
2).A click sound can often be heard from the refrigerator .This is a
normal sound produced by the pull-in or release of the armature of a
current deadweight start relay when starting the compressor .The
compressor motor will produce a slight and uniform sound while it is
running .This sound is not easy to be heard in the daytime ,but of course it
can be heard distinctly at night.
3).The compressor consists of an electric motor and a compressing
apparatus .During its normal operation ,the motors stator core and
windings will rise to a temperature in the range of 100~110 ,and the
temperature of the piston and cylinder of the compressing mechanism can
also reach as above 100 due to the heat produced when compressing
refrigerant .Most of the heat radiates to the air through the compressor
casing ,therefore ,its casing is generally at a temperature between 85~90
,it is very hot ,particularly in summer when the ambient temperature is
higher .All these are normal phenomena .
4).For the direct cooling refrigerator ,a kind of irregular crack sound can
be often heard when the compressor is running for a certain period of time
or has just stopped its running .This sound is caused by the stress relief
due to expansion and contraction when temperature changes ,and will not
affect the normal application of refrigerator .
Maintenance Service and Trouble Shooting