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Payne PA1ZBA060000AAAA Defrost Sensor Board
The defrost control board commences the defrost sequence which assists to keep your outdoor unit from plugging up. It is influenced by a temperature sensor located somewhere by the condenser to verify when the defrost cycle should begin.
Hints the AC defrost sensor board will die soon
- The AC may stop working due in part to frost blocking the fins on the outside unit
- The defrost sequence has not run for quite some time even though there is excessive frost on the external unit
- The HVAC system control board may issue a type of error code referring to the failed defrost sequence
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