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Carrier 58DLX11010016 Defrost Sensor Board
The defrost sensor board will determine when to initiate the defrost sequence which assists to keep the outdoor unit free from frost build-up. The board looks to a sensor which is near the condenser somewhere, in order to make the decision on when the defrost cycle should begin.
Major symptoms of a failing defrost board
- The AC may not work at all because of way too much frost build-up
- The main control board might issue an error code produced when the defrost board is bad
- The defrost sequence never initiates even though there is excessive frost on the unit
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