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International Comfort Products N8MPN100F20B1 Defrost Sensor Board
The defrost control board instructs the outdoor unit to begin the defrosting phase which may be necessary to remove frost build-up that may accumulate. The board looks to a sensor which is near the condenser somewhere, in order to verify when to begin.
Important hints the AC defrost sensor board should need replacing
- Most systems will not operate due in part to the frost issue
- The main circuit board may throw an error code referring to a failing defrost control board
- Self defrost sequence does not run especially when there is a rather large amount of frost built up
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