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Component function and testing – Amana Bottom Mount Refrigerator User Manual

Page 24

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Component Function and Testing

RS1200001 Rev. 1

24

April 1998

Thermostat

Check resistance across terminals, or for pow er at thermostat or high
voltage board A/C output.

Valve, w ater

Valve control w ater flow to ice maker.

Check resistance across coil w indings.

Thermostat is in a series circuit betw een high voltage
board and defrost heater.

Opens and breaks circuit w hen thermostat senses
preset temperature above freezing.

After defrost thermostat opens, thermostat remains
open until end of defrost cycle and refrigerator starts
cooling again and defrost thermostat senses a preset
temperature generally below freezing.

At this temperature, defrost thermostat resets (closes)
for next defrost cycle.