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International Comfort Products H8DNL075F16B1 Defrost Sensor Board
The defrost sensor control board initiates the defrost cycle which may be needed in order to keep the outdoor unit free from frost build-up. The defrost sensor board looks to a sensor which is near the condenser somewhere, in order to agree when to begin.
Major warnings of a declining AC defrost sensor board
- The system may cease to function due to frost blocking the fins on the outside unit
- Defrosting never starts especially when there is frost built up
- Your main control board may issue an error number when a defrost board fails to initialize
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