Freezer Compartment Theory Of Operation - Amana SXD25S2 Service

Electronic Functional Description
WARNING
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.
Freezer Compartment
As freezer thermistor warms the resistance decreases
allowing low voltage signal to be sent to electronic
control. Electronic control sends two low voltage
signals, one to the compressor relay coil (C1) and one
to the evaporator fan relay coil (E1).
When both relay coils are energized and both relay
contacts are closed, high voltage circuits to evaporator
fan motor and compressor/condenser fan motor are
complete.
As thermistor cools during refrigeration cycle,
resistance through thermistor increases blocking low
voltage signal to electronic control interrupting circuit.
December 1997 33 RS1300003 Rev. 0