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Lennox CB30M-51 Defrost Sensor Board
The defrost sensor board will determine when to initiate the defrost cycle if necessary, to keep the outdoor unit free from frost build-up. It depends on a temperature sensor located near the condenser to determine when the defrost cycle should begin.
Simple warnings that your defrost sensor board really needs to be replaced?
- The AC may end up not running due to the fact of the frost issue
- The control board may signify a specific error code if the defrost board goes out
- Unit defrost session will not kick in even though there is a lot of frost on the external unit
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