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International Comfort Products FBF050B12A3 Defrost Sensor Board
The defrost sensor board initiates an important defrosting cycle in order 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 make the decision on when to initiate the defrosting cycle.
Warnings of a dying defrost sensor board
- The HVAC system could cease to function due to the fact of frost blocking the airflow outside
- Defrost session never begins despite that there is a large amount frost on the outdoor unit
- The main circuit board could throw an error signal if the defrost board fails
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