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International Comfort Products C8MPN125J20B1 Defrost Sensor Board
The defrost sensor board instructs the system to activate the defrost cycle in order to keep the outdoor unit free from frost build-up. The defrost sensor board is influenced by a specific sensor located somewhere by the condenser to ascertain when to begin.
Indications your outdoor defrost sensor board has very little life left
- The main control board might issue an error signal when the defrost control board refuses to initialize properly
- The AC may not work for the fact of the frost issue
- The defrost sequence does not run even though there is a lot of frost that makes the unit run like crap
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