Haier 102102429 Service Manual

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Brand: Haier

Category: Refrigerator

Type: Service manual for Haier 102102429

Pages: 35 (0.83 Mb)

Download Haier 102102429 Service manual

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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 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 .
Maintenance Service and Trouble Shooting