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International Comfort Products VNK075F14A1 Defrost Sensor Board
The defrost control board determines when or if to start the defrosting phase which aids to get rid of the frost that collects on the outdoor unit. It is relayed information from a specific sensor located somewhere by the condenser to determine when to begin.
Major clues the AC defrost sensor board needs to be replaced
- The main control board could display a specific error code if the defrost board fails
- Self defrost sequence never begins even though there is a lot of frost that makes the unit run like crap
- The system may stop working due to the fact of frost blocking the airflow outside
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