RS1300003 Rev. 0
34
December 1997
To avoid electrical shock which can cause severe personal injury or death, disconnect power to
refrigerator using power switch before servicing. Wires removed during disassembly must be replaced on
proper terminals to insure correct grounding and polarization. After servicing, reconnect power using
power switch.
WARNING
Electronic Functional Description
Refrigerator Compartment
As fresh food thermistor warms, resistance decreases
allowing low voltage signal to be sent to the electronic
control. Electronic control sends two low voltage
signals, one to damper heater and one to evaporator
fan relay coil (E1).
Damper heater warms damper control bellows,
opening damper door at the same time relay coil
closes high voltage contacts to evaporator fan motor.
With evaporator fan operating and damper door open,
freezer air circulates into fresh food compartment. As
fresh food thermistor cools, resistance increases
blocking low voltage signal to electronic control
interrupting circuit to evaporator fan motor relay coil
and damper heater.
