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2. Defrost Thermistor
1) Move the power switch to the "OFF" position, then unplug the unit.
2) Remove the evaporator fan shroud. Remove the cabinet thermistor from the evaporator
fan shroud.
3) Note the location of the defrost thermistor, then remove the defrost thermistor.
4) Remove the control box cover.
5) Disconnect the defrost thermistor from the control module, then remove the defrost
thermistor.
6) Route the new defrost thermistor from the control box to the evaporator. Insert the
defrost thermistor in its correct position. If replacing on a refrigerator, secure the defrost
thermistor wire with a tie to the clip. WARNING! On freezers, be sure the thermistor
wire is not touching the defrost heater.
7) Secure the cabinet thermistor to the evaporator fan shroud. Replace the evaporator fan
shroud in its correct position.
8) Connect the defrost thermistor to the control module, then replace the control box cover
in its correct position.
9) Plug the unit back in. Move the power switch to the "ON" position.
Refrigerator
Fig. 9
Defrost Thermistor
Clip and Tie
Defrost Thermistor
Evaporator Fan Shroud
44
Freezer
Fig. 10
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