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The Goodman 10123529 manual reset limit switch is a genuine OEM safety control for the VDS80804BXAA and compatible Goodman/Amana gas furnaces. This high-limit switch continuously monitors heat-exchanger temperature and trips to shut off the burners if the furnace overheats — protecting against restricted airflow, blower failure, or flame rollout. Because it is a manual reset design, it will not automatically re-close after a fault, ensuring the underlying problem is inspected before the furnace runs again.
This genuine Goodman OEM limit switch is calibrated to the exact trip temperature specified for your furnace. Generic switches with incorrect setpoints can nuisance-trip or, worse, fail to trip when needed — a serious safety risk. The OEM part guarantees the correct temperature rating and mounting fit.
Moderate (2/5). Requires removing two mounting screws and transferring the wire terminals. Shut off gas and power first, and diagnose the root cause of any trip before resetting.