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The Goodman 10123529 Manual Reset Limit Switch is a genuine OEM safety control for the Goodman/Amana ADVC81005CXBA gas furnace. This manual-reset high-limit (rollout/overheat) switch opens the ignition circuit when it senses excessive temperature or flame roll-out, shutting down the furnace to protect the heat exchanger and occupants. Because it is a manual-reset device, it will not automatically restore power until the fault is corrected and the button is pressed.
Safety limits are calibrated to a specific trip temperature. An OEM Goodman switch guarantees the correct set point and mounting footprint. Generic substitutes with the wrong trip temperature can nuisance-trip or, worse, fail to protect the equipment. For a critical safety component, always use the factory-specified part.
Easy to Moderate (2/5). Turn off gas and power, disconnect the two spade terminals, remove the mounting screws, and install the new switch in the same orientation. A repeated trip indicates an underlying issue — check for blocked venting, cracked heat exchanger, or airflow problems before returning the unit to service.
Fits Goodman and Amana ADVC81005CXBA furnaces. Verify your serial plate for exact fitment.