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International Comfort Products MF08B1500A1 Defrost Sensor Board
The defrost control board initiates the defrosting phase which helps to keep your outdoor unit from plugging up. The board looks to a defrost sensor located near the condenser to ascertain when the defrost cycle should begin.
Easy warnings the AC defrost sensor board has to be replaced
- Unit defrost session has not run for a while especially when there is a rather large amount of frost that has built up
- The main control board may issue an alphanumeric error code referring to a failing defrost control board
- AC and heating system could end up not running at all because of frost blocking the airflow outside
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