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International Comfort Products NTC5100BFE1 Defrost Sensor Board
The defrost control board will determine when to initiate an important defrosting cycle in order to continue normal heating and cooling operations. The defrost board depends on a specific sensor located somewhere by the condenser to verify when to begin.
Simple indications of an ineffective outdoor defrost sensor board
- Your main control board may throw an error number if the defrost board goes out
- Your HVAC system will not operate for the simple fact of lack of airflow through the outdoor unit
- The defrost feature has not run for a while despite the fact that there is a lot of frost on the outdoor unit
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