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Fujitsu ASU36CLX Defrost Sensor Board
The defrost sensor board instructs the outdoor unit to begin an important defrosting cycle in order to remove frost build-up that may accumulate. The board depends on a specific sensor located in the outdoor unit to determine when the defrost cycle should begin.
Main clues your Fujitsu defrost sensor board is on its last leg
- The system will not run for the simple fact of frost blocking the fins on the outside unit
- Defrost session will not initiate even though there is a large amount of frost on the unit
- The control board might give out an error of some type when a defrost board fails to initialize
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