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International Comfort Products C9MPD050F12B1 Defrost Sensor Board
The defrost sensor board is jobbed with determining when to begin the defrosting phase which helps to remove frost build-up that may accumulate. The defrost sensor board looks to a specific sensor located somewhere by the condenser to agree when to begin.
Subtle cues of an inadequate AC defrost sensor board
- The main board could throw an error of some type when the defrost control board refuses to initialize properly
- The system may cease to operate because of the fact that there is too much frost
- Defrosting does not begin despite the fact that there is a lot of frost that makes the unit run like crap
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