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b) Thermostat is malfunctioning and makes the compressor running continuously
Analysis of Trouble
When the thermostat does not work normally, it will make the compressor run continuously, and
hence very low temperature will be achieved in the refrigerator. The fault is generally because
the contacts of the thermostat cannot be released.
Remedy
Dismantle the thermostat and make a through checkup. If it is totally out of functioning, replace
with a new one.
c)
Evaporation temperature is too high in refrigerating system, resulting in lower refrigerating
capacity and hence continuous running of compressor
Analysis of Trouble
Leakage of refrigerant and clogging in a refrigerating system will directly affect its refrigerating
capacity. Due to the reduction in its refrigerating capacity, the refrigerator temperature cannot
reach its rated value. The thermostat will not work, thus the compressor runs continuously. When
the evaporation temperature in the system is too high, the temperature sensing agent in the
temperature sensor is also hotter therefore, the thermostat is unable to cut off the power supply to
the compressor and stop it.
Remedy
If it has been found that the refrigerant in the system is insufficient in quantity, recharge it with
refrigerant. In case clogging occurs, disassemble the part where it is blocked. If the evaporation
temperature is too high, settle this problem with an appropriate quantity of refrigerant.
d) No stoppage of compressor due to damaged heat-insulation layer inside case body and / or door
seal
Analysis of Trouble
When the heat-insulation layer inside the case body deteriorates or the door seal does not closely
touch the doorframe, the temperature in the refrigerator will rise and makes the compressor run
continuously.
Remedy
Check the heat-insulation layer for damaged parts. Repair it if damaged to improve its heat-
insulation property. If the door has deformed or the door seal is not tightly sealed against the case
body, repair them.
e) Too much food is placed in the refrigerator, or is placed too densely, resulting in poor ventilation
or poor conditions for temperature sensing hence no stoppage of the compressor.
f) Too high ambient temperature, poorer ventilation and heat dissipation make the compressor run
without stopping.
