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Carrier 48JZ036090300 Defrost Sensor Board
The defrost sensor control board determines when to initiate the defrost cycle if necessary, to continue normal heating and cooling operations. The control board is relayed information from a sensor located near the condenser to make the decision on when to initiate the defrosting cycle.
What are some indications that my AC defrost sensor board is on its last leg?
- The HVAC system could stop running due in part to the frost blocking the flow of air
- Defrosting never runs even though there is a lot of frost that needs to be removed
- Your main control board may signify a particular error code produced by a bad defrost control board
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