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Whirlpool ATR0943BPP0 Defrost Sensor Board
The defrost control board determines when to initiate the defrost cycle which aids to rid your unit of frost that can build up. It depends on a sensor located near the condenser to decide when to initiate the defrosting cycle.
Major indications your outdoor defrost sensor board has very little life left
- AC and heating system could cease to function for the fact of the amount of frost on the outdoor unit
- The defrost feature will not initiate even though there is a large amount of frost that needs to be removed
- The HVAC system control board could throw an error signal when encountering a problem
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