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Carrier 38YXA024 Defrost Sensor Board
The defrost sensor control board initiates the defrosting phase which actually helps to continue normal heating and cooling operations. The defrost sensor board is influenced by a sensor which is near the condenser somewhere, in order to make the decision on when the defrost cycle should begin.
Major clues of a poorly performing defrost board
- Your main control board may show an alphanumeric error code when the defrost board fails
- AC and heating system could end up not running due to lack of airflow through the outdoor unit
- The defrost feature does not run even though there is quite a bit frost that needs to be removed
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