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Carrier 50TFF007 Defrost Sensor Board
The defrost sensor board instructs the outdoor unit to begin an important defrosting cycle which helps to remove frost build-up that may accumulate. The board looks to a specific sensor located somewhere by the condenser to decide when to begin.
Some clues of a laboring outdoor defrost sensor board
- The HVAC system could stop running due in part to the fact that there is too much frost
- The main board may throw an error of some type when the defrost control board refuses to initialize properly
- Unit defrost session never initiates even though there is a large amount of frost on the external unit
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