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Carrier 38GRQB09 Defrost Sensor Board
The defrost sensor board determines when to initiate the defrosting phase which may be needed in order to keep your outdoor unit from plugging up. The board depends on a temperature sensor that can be found near the condenser, in order to ascertain when to initiate the defrosting cycle.
Key clues of a laboring Carrier defrost sensor board
- The system will stop working due in part to the safety issue that the frost poses
- Your main control board may show an error code produced when the defrost control board fails to receive a signal
- Unit defrost session never starts even though there is a lot of frost built up
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