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Friedrich VHA24K Defrost Sensor Board
The defrost sensor board is jobbed with determining when to begin the defrosting phase which aids to rid your unit of frost that can build up. The defrost board depends on a temperature sensor that can be found near the condenser, in order to verify when to begin.
Some clues your defrost board is on its last leg
- The primary control board could throw an error of some type produced by too much frost
- The system will stop functioning for the simple fact of lack of airflow through the outdoor unit
- Self defrost sequence never initiates even though there is a lot of frost that makes the unit run like crap
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