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Haier CPN14XC9 Defrost Sensor Board
The defrost sensor board controls if and when to commence the defrosting phase which may be necessary to remove frost build-up that may accumulate. It depends on a sensor located near the condenser to make the decision on when to begin.
What signals that my AC defrost sensor board is almost dead?
- The main board may show an error signal produced when the defrost board is bad
- The whole system may stop working due in part to the fact that there is too much frost
- The defrost feature never begins even though there is a lot of frost that has built up
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