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International Comfort Products FBF100F14A1 Defrost Sensor Board
The defrost sensor board will begin the defrosting phase which actually helps to keep the outdoor unit free from frost build-up. The control board depends on a temperature sensor that can be found near the condenser, in order to make the decision on when to initiate the defrosting cycle.
Some warnings the AC defrost sensor board has little life left
- Defrost mode refuses to run even though there is excessive frost on the outdoor unit
- The AC may not run for the fact of the safety features installed
- The main circuit board could throw an error signal if the defrost control board fails
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