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Payne PY1PNB030060AAAA Defrost Sensor Board
The defrost sensor control board instructs the system to activate the defrost sequence which may be necessary to defrost your outdoor unit. The board looks to a specific sensor located near the condenser to make the decision on when to initiate the defrosting cycle.
Signals of an unhealthy defrost board
- Self defrost sequence never starts despite the fact that there is a lot of frost built up
- The main board may signify an alphanumeric error code referring to the failed defrost sequence
- The system will stop working for the fact of frost blocking the fins on the outside unit
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