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The evaporator thermistor is located in the upper
right-rear corner of the freezer. A metal clip
secures the thermistor to the outlet line of the
evaporator. The thermistor is used to monitor
evaporator temperature and terminate defrost
when the thermistor reaches 55°F.
To access the evaporator thermistor, the
evaporator cover must be removed (see
Evaporator Cover Removal, under Evaporator
Cover in the Freezer section of this service
guide). To test or replace the thermistor, follow
the steps under Thermistor Replacement in the
Thermistors section of this service guide.
Evaporator Thermistor
The icebox used a blower-style fan to push air
into the icebox from the freezer. The DC fan
motor is located in the upper left corner of the
freezer behind the evaporator cover. When
the left fresh food door is opened, the fan will
shut o. The main board can operate the fan
at dierent speeds, depending on the ice box
thermistor temperature and operating state of the
refrigerator.
Icemaker Blower Fan Diagnosing
Use Service Mode Test t8 to operate the
icemaker blower fan.
J2 and J14 on Main Board
• J2 pin 8 (red) to J14 pin 4 (white/silver): 13
VDC
Low Speed
• J2 pin 7 (black/white) to J14 pin 4 (white/
silver): 6 VDC
Medium Speed
• J2 pin 7 (black/white) to J14 pin 4 (white/
silver): 11 VDC
High Speed
• J2 pin 7 (black/white) to J14 pin 4 (white/
silver): 13 VDC
Icemaker Blower Fan Removal
1. Remove the evaporator cover (see
Evaporator Cover Removal, under
Evaporator Cover in the Freezer section of
this service guide).
2. Remove one 1/4 in. hex-head screw.
3. Release the two lower tabs holding the blower
fan to the ice box air duct.
4. Disconnect the 3-pin fan connector.
Icemaker Blower Fan
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