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Whirlpool ATR0943CPP0 Defrost Sensor Board
The defrost sensor board instructs the outdoor unit to begin an important defrosting cycle if necessary, to get rid of the frost that collects on the outdoor unit. It looks to a temperature sensor which is near the condenser somewhere, in order to determine when to begin.
Warnings your outdoor defrost sensor board has to be replaced
- Your HVAC system will stop functioning due to frost blocking the fins on the outside unit
- Defrosting has not run for quite some time even though there is a large amount of frost in the way
- The main control board may signify an error of some type produced when the defrost control board fails to receive a signal
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