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EdgeStar AP12000S Defrost Sensor Board
The defrost control board is jobbed with determining when to begin the defrost sequence which aids to defrost your outdoor unit. It is influenced by a specific sensor that can be found near the condenser, in order to decide when to initiate the defrosting cycle.
General warnings of a failing defrost board
- The main circuit board may throw an error signal when encountering a problem
- The defrost sequence never kicks in even though there is excessive frost in the way
- Most systems will cease to function due in part to frost blocking the airflow outside
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