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Haier CPN10XCJ Defrost Sensor Board
The defrost sensor control board instructs the system to activate the defrost cycle which helps to remove frost build-up that may accumulate. The defrost sensor board relies on a sensor which is near the condenser somewhere, in order to ascertain when the defrost cycle should begin.
What are the clues to watch out for to know my defrost sensor board needs replacing?
- The primary control board might issue an error of some type when the defrost board fails
- The AC may stop working due to frost blocking the airflow outside
- Defrost mode does not run even though there is quite a bit frost that needs to be removed
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