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then charge it with refrigerant.
2) Stoppage due to electric troubles
a) Thermostat is out of control
Analysis of Trouble
In case the thermostat does not work in its good order or its temperature
sensor has not been installed properly, frequent stoppage is also likely to
occur.
Remedy
Try to adjust the temperature sensor’s position until the compressor can
be started and stopped normally. If this cannot be achieved, and the stoppage
still occurs repeatedly, it is most likely that the mechanical parts or contacts
are out of order, disassemble the thermostat, make a thorough checkup and
repair it.
b) Overload of electric motor
Analysis of Trouble
Probably, too many things have been put into the refrigerator, and hence
the thermal load exceeds its refrigerating capacity ; or in case the power
supply voltage drops considerably, the current flowing through the motor will
increase drastically making the thermal protector actuate and the fuse blown ,
and hence the motor stops running. If the motor is still running continuously in
such a case , its windings will be burned out .
Remedy
Reduce the thermal load, pay attention to the variation in voltage of the
power supply.
c) Abnormal thermal protection
Analysis of Trouble
The compressor current is within its normal range, but the thermal
protector actuates repeatedly.
Remedy
Replace the thermal protector with a new one.
3) Sudden stoppage due to other causes
Normal Stoppage
Start and stop of the compressor is generally controlled by a thermostat .
When the temperature in the refrigerator reaches its desired value, the
thermostat will shut down the compressor automatically. Never take this
normal operation as a trouble, care should be taken to differentiate it from
other real troubles in servicing.
D. Compressor won 't start
In case the compressor cannot be started, you must find out the origins of
this trouble through checkup step by step, because probably there are many
causes, including those electrical and mechanical.
1) Inspect the power supply to see whether it is connected to the
compressor circuit.
Maintenance Service and Trouble Shooting
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