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Haier CPN14XH9 Defrost Sensor Board
The defrost control board controls if and when to commence the defrosting phase which aids to keep your outdoor unit from plugging up. The defrost sensor board is influenced by a defrost sensor located in the outdoor unit to determine when to begin.
Some clues of a poorly performing AC defrost sensor board
- Defrost mode never kicks in even though there is a lot of frost that needs to be removed
- The system will not run for the fact of the frost issue
- The control board could display a particular error code referring to a bad defrost board
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