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The Goodman 10123529 is a genuine OEM manual reset limit switch engineered for the Goodman/Amana ACVC80805CXBC gas furnace and other compatible 80% AFUE models. This high-limit safety control monitors heat-exchanger and supply-air temperature and trips to shut off the burners if the furnace overheats, protecting the equipment and your home. Because it is a manual reset device, it requires a deliberate button press to restore operation after a fault — a built-in prompt to diagnose the underlying cause before continuing to run the unit.
The genuine OEM 10123529 is calibrated to the exact trip temperature specified for your furnace, ensuring proper safety margins and reliable cycling. Generic limit switches may carry a different setpoint or bracket profile, risking nuisance trips or improper fit. For a safety-critical component, OEM is the recommended choice.
Easy (2/5). A two-wire replacement secured by a mounting screw or clip. Always shut off power and gas before servicing. If you are unsure, consult a licensed HVAC technician.