Question about Refrigerators
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Here are a list of outlined problems that commonly come up under the circomstances you have described.
Faulty Defrost Timer / Control
Some models use a mechanical timer while others use an adaptive control which is a computer board. Regardless which device is used, the purpose is the same. The defrost control is used to send power to the defrost heaters at the proper time. If power is not reaching the the defrost heater circuity, it is most likely the fault of the defrost timer/control mechanism.
When the defrost timer is in the defrost cycle, the compressor and fans will cease to operate. If the timer fails to advance from the defrost cycle, the machine will not operate. Mechanical style timers can be manually advance both into and out of the defrost cycle.
Faulty Cold control (temperature control)
The cold control is a temperature actuated switch and should open when the set temperature has been acheived. If the control does not open and turn the compressor off, it will continue to run and all items in the fresh food section will begin to freeze.
If the control is not closing, the compressor and all fans will cease to operate. Check the control for continuity.
Compressor and lights both operate
Modern refrigerators are designed to self defrost and it is essential to the airflow to have an evaporator coil that is clear for air movement. If the rear interior panel of the freezer has frost appearing, it is most likely a defrost problem and must be corrected before temperatures can be restored to normal.
Dirty condensor Coil
Check the condensor coils for lint and restrictions. It is located underneath the refrigerator and accessible from the rear. A dirty condensor coil will result in poor cooling, especially in the freezer.
Low Refrigerant Charge
If the unit has a low refrigerant change, the freezer will not reach proper temperatures. This must be checked by a qualified technician due to EPA regulations.
Faulty Condensor Fan Motor
The condensor fan motor is found under the refrigerator near the compressor. This motor is essential to proper cooling. If the fan motor is not running, there will not be proper heat removal from the condensor and the result will be higher than normal temperatures in the freezer and usually in the fresh food section. Ensure the fan motor is running when the compressor is on.
Posted on Jul 18, 2009
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Posted on Jan 02, 2017
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