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Carrier 25HPA436A0030010 Defrost Sensor Board
The defrost control board will begin the defrost cycle which assists to keep the outdoor unit free from frost build-up. The board is relayed information from a defrost sensor located somewhere by the condenser to decide when the defrost cycle should begin.
Hints your outdoor defrost sensor board has little life left
- The system may cease to operate at all because of lack of airflow through the outdoor unit
- Your main control board might give out a specific error code referring to a bad defrost board
- Defrost session does not run despite the fact that there is quite a bit frost in the way
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