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International Comfort Products PYPA42GA1 Defrost Sensor Board
The defrost control board determines when to initiate the defrosting phase which helps to keep the outdoor unit free from frost build-up. The defrost sensor board is relayed information from a defrost sensor located somewhere by the condenser to decide when to begin.
Major indications the defrost sensor board will not live much longer
- The primary control board may show an error of some type referring to a bad defrost board
- The AC may stop running for the fact of lack of airflow through the outdoor unit
- Defrosting does not begin even though there is a lot of frost on the outdoor unit
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