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Carrier 48XZ030040300 Defrost Sensor Board
The defrost sensor board will begin an important defrosting cycle if necessary, to keep your outdoor unit from plugging up. The defrost board is relayed information from a specific sensor which is near the condenser somewhere, in order to verify when to initiate the defrosting cycle.
Some clues your outdoor defrost sensor board is in need of replacing
- The primary control board might give out an alphanumeric error code referring to the failed defrost sequence
- The whole system may not operate for the fact of the safety features installed
- Unit defrost session never initiates despite that there is a large amount frost on the external unit
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