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Samsung AD18B1C09 Defrost Sensor Board
The defrost sensor board initiates the defrosting phase which actually helps to keep your outdoor unit from plugging up. The board is relayed information from a defrost sensor located in the outdoor unit to make the decision on when to begin.
Important hints your outdoor defrost sensor board is dying
- Self defrost sequence does not run even though there is quite a bit frost on the unit
- Air conditioning may not run because of frost blocking the airflow outside
- The main board may signify a type of error code referring to the failed defrost sequence
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