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Carrier GT-G Defrost Sensor Board
The defrost control board will begin the defrosting phase which may be needed in order to keep your outdoor unit from plugging up. The defrost sensor board depends on a defrost sensor located near the condenser to decide when to begin.
Major signs your Carrier defrost sensor board has to be replaced
- Your HVAC system will not operate for the fact of frost blocking the airflow outside
- Self defrost sequence has not run for a while despite the fact that there is quite a bit frost that has built up
- The main control board may issue a type of error code when a defrost board fails to initialize
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