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The Goodman 10123535 Manual Reset Limit Switch is a genuine OEM safety control designed for the Amana/Goodman AMEH960403BXAA gas furnace and compatible modular-blower models. This red manual-reset limit protects the heat exchanger and blower compartment by opening the ignition circuit if the furnace overheats — a critical safety component that must be replaced with an exact-fit part.
Our OEM 10123535 is the factory-specified switch with the correct trip temperature and mounting footprint, ensuring proper safety operation. Aftermarket generic equivalents may fit physically but can vary in trip point and reset behavior — for a safety limit we strongly recommend OEM to protect your equipment and maintain warranty compliance.
Easy (1 of 5). Replacement typically requires two screws and two spade connectors. Always shut off gas and electrical power before servicing. If the limit trips repeatedly after replacement, have a licensed HVAC technician diagnose the underlying airflow or overheating issue.