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International Comfort Products NDN5100BHC1 Defrost Sensor Board
The defrost sensor board is jobbed with determining when to begin the defrosting phase which assists to continue normal heating and cooling operations. The defrost sensor board relies on a specific sensor located in the outdoor unit to make the decision on when to initiate the defrosting cycle.
Indications your outdoor defrost sensor board is in dire need of a replacement
- AC and heating system could stop working due to the fact of lack of airflow through the outdoor unit
- Self defrost sequence never kicks in especially when there is frost built up
- Your main control board might issue a type of error code referring to a bad defrost board
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