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International Comfort Products H9MPD075F12A1 Defrost Sensor Board
The defrost sensor board determines when or if to start an important defrosting cycle which may be necessary to remove frost build-up that may accumulate. It is influenced by a specific sensor that can be found near the condenser, in order to verify when to begin.
Some warnings your outdoor defrost sensor board will need to be replaced
- Self defrost sequence does not begin especially when there is frost in the way
- AC and heating system could stop running for the simple fact of frost blocking the airflow outside
- The main board may show a specific error code if the defrost board goes out
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