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5/4/2012
Freezer and Fresh Food Heated Defrost
¾ Following pre-chill, the heated freezer and heated fresh food defrost cycle is initiated
where both heaters will be on at the same time.
¾ The 3-way valve will move to the ‘A’ position. The compressor will turn off. The
condenser, freezer, fresh food, and ice box fans will turn off.
¾ The freezer defrost heater remains on until the freezer evaporator is 50˚F* (defrost
termination temperature) or the maximum defrost time of 45* minutes is reached.
¾ The fresh food defrost heater remains on until the fresh food evaporator is 45˚F*
(defrost termination temperature) or the max defrost time of 45* minutes is reached.
¾ If either the fresh food or freezer defrost heater’s on time exceeds the normal defrost
threshold of approximately 20 minutes*, the defrost is considered abnormal.
(Abnormal defrost forces both the fresh food and freezer into pre-chill after 6* hours of
compressor run time -door openings not counted).
¾ During defrost, if power is interrupted, the refrigerator will restart in the dwell state if
the freezer evaporator temperature is above 50˚F* (defrost termination temperature).
¾ After the defrost heaters turn off, the refrigerator will enter the dwell cycle.
* Values are approximate and preliminary
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