Haier 102102429 Service Manual - page 26

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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. 

Analysis of Trouble 

In case the compressor cannot be started, this will generally exhibit in 

the power supply circuit, for instance, power failure, poor contact of switch, 

and blown fuse. Make a comprehensive analysis of these phenomena, fine 

out its real cause and take correct measures to remove this trouble. 

Remedy 

Maintenance Service and Trouble Shooting