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Payne PG8JAA048070 Defrost Sensor Board
The defrost control board determines when to initiate the defrosting phase which actually helps to keep the outdoor unit free from frost build-up. The control board looks to a sensor located near the condenser to make the decision on when the defrost cycle should begin.
Key signs of a barely functioning defrost board
- The AC may stop operating for the simple fact of lack of airflow through the outdoor unit
- The primary control board could throw a specific error code produced by a failing defrost board
- Unit defrost session refuses to run despite that there is a large amount frost that has built up
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