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Carrier 58CTX15510020 Defrost Sensor Board
The defrost sensor control board initiates the defrost sequence which helps to keep the outdoor unit free from frost build-up. The control board is influenced by a specific sensor located near the condenser to decide when to initiate the defrosting cycle.
What signals that my Carrier defrost sensor board is almost going bad?
- The AC may not work because of frost blocking the fins on the outside unit
- Defrosting has not run for a while especially when there is a rather large amount of frost in the way
- The main board could throw an alphanumeric error code if the defrost board fails
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