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Carrier 25HPA442A0030010 Defrost Sensor Board
The defrost sensor board commences the defrost cycle which aids to continue normal heating and cooling operations. The defrost board relies on a sensor that can be found near the condenser, in order to make the decision on when to begin.
What are the indications that my Carrier defrost sensor board is almost dead?
- The defrost sequence never starts even though there is a large amount of frost that needs to be removed
- The HVAC system control board may throw an error number when the defrost board fails
- The system may not work due in part to frost blocking the airflow outside
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