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Whirlpool ATR0943RPP0 Defrost Sensor Board
The defrost control board controls when to launch an important defrosting cycle which aids to keep the outdoor unit free from frost build-up. The defrost sensor board is relayed information from a temperature sensor that can be found near the condenser, in order to make the decision on when to initiate the defrosting cycle.
Major symptoms your defrost board will not last the year
- Your HVAC system will cease to function due in part to frost blocking the airflow outside
- The main board could throw an error of some type produced by a failing defrost board
- Self defrost sequence will not kick in even though there is quite a bit frost that needs to be removed
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