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The Goodman 10123535 Manual Reset Limit Switch is a factory-original high-limit safety control designed for the AMVC950453BXAC gas furnace and compatible Goodman/Amana models. This red-body limit switch monitors heat-exchanger temperature and cuts power to the burners if the furnace overheats, protecting the unit from damage and preventing unsafe operation. Because it is a manual-reset design, it will not automatically re-close after a trip — an intentional safety feature that forces a technician to inspect the cause (blocked airflow, failed blower, or dirty filter) before the furnace can fire again.
This is a genuine OEM Goodman part, calibrated to the exact trip temperature the AMVC950453BXAC was engineered around. Generic universal limit switches may carry a different trip point or button style, risking nuisance trips or, worse, a failure to trip at the correct temperature. For a safety control, we strongly recommend the OEM part.
Easy (2/5). Two mounting screws and two spade terminals. Always disconnect power at the furnace disconnect before servicing. Confirm the underlying cause of any limit trip before returning the unit to service.