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Carrier 58MTB100F10120 Defrost Sensor Board
The defrost sensor board controls if and when to commence an important defrosting cycle which helps to defrost your outdoor unit. It relies on a sensor located in the outdoor unit to make the decision on when the defrost cycle should begin.
Major clues the defrost sensor board has to be replaced
- AC and heating system could not operate for the simple fact of frost blocking the airflow outside
- The defrost feature never runs even when there is a large quantity of frost that makes the unit run like crap
- Your main control board may issue an error number when the defrost control board refuses to initialize properly
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