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Carrier 58MXA080F14116 Defrost Sensor Board
The defrost sensor control board determines when or if to start the defrosting phase which may be necessary to keep the outdoor unit free from frost build-up. It looks to a sensor located near the condenser to ascertain when to initiate the defrosting cycle.
Chief elements of a weakening defrost board
- The defrost sequence refuses to initiate despite the fact that there is quite a bit frost on the unit
- The AC may not operate for the simple fact of too much frost
- The control board could throw an alphanumeric error code if the defrost control board fails
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