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Payne PY2PNB030060AA Defrost Sensor Board
The defrost sensor control board determines when or if to start the defrosting phase which helps to get rid of the frost that collects on the outdoor unit. The board is influenced by a specific sensor located somewhere by the condenser to decide when to begin.
Symptoms the AC defrost sensor board needs a replacement ASAP
- The system will cease to function for the fact of frost blocking the airflow outside
- The defrost feature never begins even though there is excessive frost on the external unit
- The main circuit board may signify an error signal when the defrost control board refuses to initialize properly
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