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International Comfort Products NDN5100BFB1 Defrost Sensor Board
The defrost sensor control board initiates the defrost sequence in order to rid your unit of frost that can build up. It is influenced by a sensor located somewhere by the condenser to decide when to begin.
Symptoms the AC defrost sensor board is going out
- Your main control board may show a type of error code referring to a bad defrost board
- AC and heating system could end up not running at all because of frost blocking the fins on the outside unit
- Unit defrost session does not run even though there is a lot of frost in the way
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