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Payne PG8MAA048090AAJA Defrost Sensor Board
The defrost control board determines when or if to start the defrost sequence which assists to keep the outdoor unit free from frost build-up. The control board is relayed information from a temperature sensor that can be found near the condenser, in order to agree when to begin.
Important clues to watch for in a bad defrost sensor board
- The control board may show a specific error code if the defrost board fails
- Self defrost sequence never starts even when there is a large quantity of frost on the unit
- The whole system may not work due in part to way too much frost build-up
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