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International Comfort Products PGF036K060A Defrost Sensor Board
The defrost sensor control board determines when to initiate an important defrosting cycle in order to keep the outdoor unit free from frost build-up. It relies on a specific sensor that can be found near the condenser, in order to agree when to begin.
Subtle hints the AC defrost sensor board has little life left
- The defrost feature refuses to initiate despite that there is a large amount frost on the unit
- Your HVAC system will cease to operate because of frost blocking the airflow outside
- The primary control board may throw an error code referring to a failing defrost control board
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