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Carrier FX4CNF018000 Defrost Sensor Board
The defrost control board initiates an important defrosting cycle if necessary, to remove frost build-up that may accumulate. The defrost sensor board depends on a sensor which is near the condenser somewhere, in order to ascertain when the defrost cycle should begin.
Signals of a defective outdoor defrost sensor board
- Your system could cease to operate at all because of lack of airflow through the outdoor unit
- The main control board could display a specific error code when the defrost board fails
- The defrost feature does not run especially when there is frost that makes the unit run like crap
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