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Whirlpool ATR1542CPP0 Defrost Sensor Board
The defrost control board determines when or if to start the defrost cycle which helps to remove frost build-up that may accumulate. The board is relayed information from a temperature sensor that can be found near the condenser, in order to ascertain when to begin.
Main clues your defrost board is on its last leg
- The main board may signify an error number referring to the failed defrost sequence
- Defrost session will not kick in despite the fact that there is quite a bit frost on the outdoor unit
- The system will stop running due in part to lack of airflow through the outdoor unit
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