Magic Chef MCSF-5585BSS, Инструкция по эксплуатации

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and dew condensation may appear for a very short time period when just starting
the machine ,this is a normal phenomenon ). Because a refrigerator is a combination
of several components ,they are related and have influence on each other In case an
abnormal phenomenon has been found through the above-mentioned checkups ,you
need not to make a hasty conclusion based on only one abnormal phenomenon .It is
advisable to find out two or more abnormal phenomenon ,or conduct troubleshooting
comprehensively with the aid of instruments or other ways, because several kinds of
troubles may share a common abnormal phenomenon, and two or more abnormal
phenomena may occur simultaneously due to a certain trouble .With this method ,you
can reject some suspicious troubles and finally make a correct judgment .
7 Analysis of Troubles and Troubleshooting
A. Poor Refrigerating Effect The so-called «poor refrigerating effect « refers to the
fact that the refrigerator can operate and refrigerator normally ,but the temperature
in the refrigerator cannot drop to the prescribed value under the stipulated working
conditions .In view of there are many causes for this phenomenon ,we are going to
discuss and analyze it in the following 7 aspects :
1) Leakage of refrigerant
Analysis of Trouble The leakage of refrigerant in the system will result in an insufficient
refrigerating capacity ,the resulting phenomena are its lower gas suction pressure and
exhaust pressure as well as higher exhaust gas temperature.The exhaust tube feels
rather hot ,and a continuous gas flowing sound louder than usual can be heard at the
outlet of the capillary ,and no frost or a smaller quantity of loose frost appears on the
evaporator .After shut down ,the balance pressure in the system is usually lower than
the saturation pressure corresponding to the same ambient temperature . Remedy In
case there is leakage of refrigerant from the system ,do not hurry to recharge it with
refrigerant ,manage to find out leak points immediately ,and make a note of from where
it leaks ---welding points and parts .After having them repaired ,recharge refrigerant .
There are so surfaces in a refrigerator ,accordingly ,quite a lot potential leak points do
exist in the system .In troubleshooting ,pay attention to those parts that are liable to
leak ,check main connection points for oil seepage and tubing for cracks .If there is no
b) Listen to the sound caused by the flowing of gas in the evaporator Open the refrigerator
door while the compressor is in operation, incline your ear and listen attentively the gas
flow sound inside the evaporator .If it sounds like gentle whistling accompanied by a
sound similar to water flowing ,this is the sound produced by the normal circulation
of refrigerant within the evaporator .In case only the gas flowing sound can be heard
and there is no water flowing sound ,this indicates that the refrigerant has already
percolated .If neither the flowing sound nor the gas sounds from the evaporator can be
heard ,this means that the filter or capillary has been clogged .
3)Touch and Feel
a) Feel the compressor when running ,its temperature should be generally less than
90°C in the normal state (it may exceed 90°C in case of running for a longer period of
time ).
b) After the compressor has operated normally for 5~10 minutes, ouch and feel the
condenser ,the temperature of its upper part should be higher than that of its lower
part (or its right part is hotter than its left part ,depending on the type of condenser coil
),this indicates that the refrigerant is circulating . If the condenser is not hot, this means
the leakage of refrigerant .In case the condenser radiates heat for only several minutes
and then cools down ,this means that the filter and capillary have been clogged .As for
the forced air cooling condenser ,hot air will be blown out of it; this means that the
system is out of order .
c) Feel the filter›s temperature .During the normal operation of refrigerating system
,the temperature on the filter›s surface should be a little higher than the ambient
temperature ;if you touch it with your hand ,you will have a sense of slight heat .In case
dew condensation appears due to the fact that its temperature is obviously lower than
the ambient temperature ,this means that most meshes of its screen has been clogged
,resulting in an obstructed flowing of refrigerant ,thus causing a drop in temperature
due to throttling .
d) Feel the temperature of exhaust gas from the refrigerating system. the exhaust gas
should be very hot and this is the normal working state. For those refrigerator with
enclosed type of compressor refrigerating system, no frost or dew drop will from on
the gas suction tube ,otherwise ,there is something wrong in the system (Frosting