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Carrier 48GX060090300 Defrost Sensor Board
The defrost sensor board determines when or if to start the defrost sequence which may be necessary to keep your outdoor unit from plugging up. The defrost sensor board relies on a specific sensor which is near the condenser somewhere, in order to make the decision on when to initiate the defrosting cycle.
Easy warnings the AC defrost sensor board is on its last leg
- Unit defrost session never runs despite the fact that there is quite a bit frost in the way
- The system may not operate due in part to the safety issue that the frost poses
- The primary control board may signify an error of some type if the defrost board goes out
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