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Payne PG8MAA048070 Defrost Sensor Board
The defrost sensor board determines when or if to start the defrost sequence which may be needed in order to rid your unit of frost that can build up. The defrost sensor board depends on a temperature sensor located in the outdoor unit to decide when the defrost cycle should begin.
Hints the defrost sensor board has very little life left
- Unit defrost session will not kick in even when there is a large quantity of frost on the unit
- AC and heating system could not operate at all because of the safety issue that the frost poses
- The primary control board could signify an error code when a defrost board fails to initialize
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