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International Comfort Products T9MPD125L20C2 Defrost Sensor Board
The defrost sensor board initiates the defrosting phase which may be needed in order to rid your unit of frost that can build up. The control board is influenced by a specific sensor located somewhere by the condenser to decide when to initiate the defrosting cycle.
Subtle cues of a barely functioning AC defrost sensor board
- The whole system may stop operating due to the fact of frost blocking the airflow outside
- The defrost feature never starts even though there is quite a bit frost in the way
- The main control board may throw a particular error code produced when the defrost board is bad
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