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Carrier 58CTX04510012 Defrost Sensor Board
The defrost control board controls if and when to commence the defrosting phase if necessary, to rid your unit of frost that can build up. The defrost sensor board relies on a defrost sensor located near the condenser to determine when the defrost cycle should begin.
Some warnings of an unhealthy AC defrost sensor board
- Defrost mode refuses to initiate even when there is a large quantity of frost in the way
- Most systems will not run for the simple fact of frost blocking the airflow outside
- The main board could display an error number if the defrost board fails
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