User's Manual

3-4
ELECTRONIC CONTROL BOARD
The main electronic control board is located
at the right rear of the unit compartment (fac
-
ing from the rear). The main electronic board
communicates with the user interface. It also
receives and reacts to feedback from other
sources, such as water valves, thermistors,
defrost bimetal, refrigerator and freezer light
switches, and the air damper. The electronic
control board directly controls, or supplies power
to, virtually all functions of the refrigerator.
THERMISTORS
Temperature is regulated with the use of two
thermistors that provide feedback to the main
control board. One thermistor is located on the
back wall of the refrigerator section, and the
other is located on the left wall of the freezer
section.
NOTE: Thermistors are very reliable and sel-
dom fail.
The refrigerator thermistor controls:
• Motorized air baffle (damper)
• Evaporator fan (only when the air baffle
is open)
The freezer thermistor controls:
• Compressor
• Condenser fan
• Evaporator fan (only when the air baffle
is closed)