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Carrier 58DLA09010016 Defrost Sensor Board
The defrost control board will determine when to initiate an important defrosting cycle which aids to keep the outdoor unit free from frost build-up. The control board is relayed information from a temperature sensor located near the condenser to verify when to initiate the defrosting cycle.
Chief elements of an ailing AC defrost sensor board
- Air conditioning may cease to operate at all because of lack of airflow through the outdoor unit
- The defrost sequence does not run even though there is a large amount of frost on the external unit
- The main circuit board might issue an error of some type referring to a failing defrost control board
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