Defrost Operation
Natural Defrost (Fresh Food only):
Natural Defrost (Fresh Food only):
Once the fresh food temperature is satisfied, natural defrost occurs if the following
conditions have been satisfied:
1 ) The compressor has accumulated 2 hours of run time
1.) The compressor has accumulated 2 hours of run time.
2.) The room temperature is above 66
°
F (19
°
C).
3.) The freezer temperature is satisfied.
If the above conditions have been met when the fresh food temperature is satisfied
If the above conditions have been met when the fresh food temperature is satisfied
& the compressor cycles off, the 3-way valve will open to both the fresh food &
freezer evaporators.
The warm thermal mass (refrigerant) flowing through the evaporator helps to
(
g
)
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g
p
p
remove frost. It has very little impact on the freezer evaporator due to the cold
freezer temperature.
In addition, when the fresh food evaporator thermistor is below 23
°
F (-5
°
C), the
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p
(
),
fresh food fan will run to help move air across the evaporator. Once the thermistor
reaches 28
°
F (-2
°
C), the fan will cycle off.
NOTE:
If the compressor is still cooling the freezer section when the fresh food is
GE Profile 42-48 Refrigerators
(4/1/05)
GE CONFIDENTIAL & PROPREITARY INFORMATION - NOT FOR PUBLIC DISCLOSURE
Copyright 2007 General Electric Company – 12/14/2009
75
g
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satisfied, or the room temperature is below 66
°
F (19
°
C), natural defrost will not occur.
