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International Comfort Products FBF075B12A3 Defrost Sensor Board
The defrost control board controls if and when to commence the defrosting phase which assists to keep your outdoor unit from plugging up. The board depends on a sensor that can be found near the condenser, in order to ascertain when to initiate the defrosting cycle.
Indications your outdoor defrost sensor board will not last the year
- The defrost sequence never starts even when there is a large quantity of frost in the way
- The HVAC system could not run due in part to frost blocking the fins on the outside unit
- The HVAC system control board may issue an error signal when the defrost board fails
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