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Carrier 58CTX09010016 Defrost Sensor Board
The defrost sensor control board initiates the defrost cycle which may be necessary to defrost your outdoor unit. It depends on a temperature sensor which is near the condenser somewhere, in order to make the decision on when to initiate the defrosting cycle.
Subtle hints your defrost board is dying
- Unit defrost session will not kick in especially when there is a rather large amount of frost on the outdoor unit
- The AC may stop operating due to the fact of the fact that there is too much frost
- The main board may show a specific error code when the defrost control board refuses to initialize properly
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