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Payne PY2PNB060115AA Defrost Sensor Board
The defrost sensor control board controls when to launch the defrost sequence which actually helps to rid your unit of frost that can build up. It is relayed information from a sensor located near the condenser to agree when to initiate the defrosting cycle.
Subtle cues to watch for in a bad outdoor defrost sensor board
- The AC may stop running at all because of the safety issue that the frost poses
- The main board may show an error code when a defrost board fails to initialize
- Defrost mode never begins despite the fact that there is a lot of frost on the external unit
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