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Ambient Thermistor
The ambient thermistor is located under the freezer compartment and connected at J1-2
on the main control board. It assists the main control board in compensating for
ambient room temperature that is higher or lower than 60°F.
• For example, if the ambient room temperature is below 60°F, the fresh food
temperature control will shut down properly. The cooler ambient room temperature
assists in keeping fresh food temperatures at the preset temperature. However, the
compressor does not get enough run time to bring the freezer down to 0°F.
• At lower room temperatures, the ambient temperature thermistor alters the main
control board’s calculations for the target temperature. The main control board then
runs the compressor at higher speeds to get the freezer, as well as the fresh food, to an
acceptable temperature.
• If the ambient temperature thermistor is not functioning, the main control
board default will presume the ambient temperature is 90°F and there will be
no adjustment to the fresh food or freezer set point.
• The ambient temperature thermistor is attached to the front of the cabinet (under the
left side of the freezer compartment), with a plastic wire tie.
mabe CONFIDENTIAL AND PROPRIETARY INFORMATION-NOT FOR PUBLIC DISCLOSURE. January 2008
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