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Whynter ARC-142BX Defrost Sensor Board
The defrost control board will begin the defrost cycle which actually helps to rid your unit of frost that can build up. The defrost sensor board is relayed information from a sensor located in the outdoor unit to make the decision on when the defrost cycle should begin.
Some warnings of a deteriorating defrost sensor board
- The HVAC system could stop working due in part to lack of airflow through the outdoor unit
- The primary control board may signify a specific error code if the defrost board fails
- Unit defrost session never kicks in even though there is excessive frost built up
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