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International Comfort Products C9MPD125L20C1 Defrost Sensor Board
The defrost sensor control board controls when to launch the defrosting phase which assists to continue normal heating and cooling operations. The board looks to a temperature sensor located somewhere by the condenser to agree when to begin.
Hints your defrost board has very little life left
- The whole system may end up not running for the simple fact of frost blocking the airflow outside
- The control board could throw a specific error code referring to a bad defrost board
- Defrosting never runs even though there is quite a bit frost that has built up
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