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Carrier 48GX042060300 Defrost Sensor Board
The defrost sensor control board determines when or if to start the defrost cycle if necessary, to keep the outdoor unit free from frost build-up. The control board is relayed information from a temperature sensor located in the outdoor unit to verify when the defrost cycle should begin.
What are the clues to watch out for to know my AC defrost sensor board is crapping out?
- The whole system may stop working due to the fact that there is too much frost
- Defrosting never kicks in even when there is a large quantity of frost on the unit
- The main board may signify a type of error code produced when the defrost control board fails to receive a signal
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