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Carrier 58MVB080F10120 Defrost Sensor Board
The defrost sensor board controls when to launch the defrosting phase which actually helps to continue normal heating and cooling operations. The board is relayed information from a defrost sensor located in the outdoor unit to agree when the defrost cycle should begin.
General warnings to watch for in a bad defrost board
- Self defrost sequence does not begin especially when there is a rather large amount of frost built up
- Your system could stop functioning for the simple fact of lack of airflow through the outdoor unit
- The primary control board may signify a particular error code produced by a failing defrost board
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