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Whirlpool ATR0753SPP0 Defrost Sensor Board
The defrost sensor control board determines when to initiate the defrost sequence which helps to keep your outdoor unit from plugging up. The defrost board looks to a sensor which is near the condenser somewhere, in order to determine when the defrost cycle should begin.
Some warnings your outdoor defrost sensor board is in dire need of a replacement
- The control board might give out an error signal when a defrost board fails to initialize
- The defrost feature never begins even though there is a lot of frost that makes the unit run like crap
- Most systems will cease to operate for the fact of too much frost
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