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Carrier FX4CNF024000 Defrost Sensor Board
The defrost control board will determine when to initiate the defrosting phase in order to rid your unit of frost that can build up. The defrost sensor board relies on a defrost sensor located in the outdoor unit to agree when to initiate the defrosting cycle.
Some warnings your Carrier defrost sensor board should need replacing
- Your system could stop functioning due to the fact of lack of airflow through the outdoor unit
- Unit defrost session will not initiate despite that there is a large amount frost on the unit
- The control board could display an error code if the defrost control board fails
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