IMAGE COMING SOON
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
The Goodman 10123517 is a genuine OEM manual-reset high-limit switch engineered for the GMH950905CXAA 95% AFUE gas furnace and compatible Goodman/Amana models. This safety control opens the burner circuit if the heat exchanger or supply-air temperature exceeds its trip point, protecting the furnace from overheating caused by restricted airflow, a failed blower, or a dirty filter. Because it is a manual-reset device, it will not automatically restore power after a fault — the red button must be pressed once the underlying condition is corrected, which flags a genuine problem to the homeowner or technician.
The OEM 10123517 is calibrated to the exact factory trip temperature and mounting footprint, guaranteeing correct fit and safety-code compliance. A quality generic equivalent offers the same normally-closed manual-reset function at a lower price and is a solid choice for out-of-warranty repairs, though trip tolerances may vary slightly. For warranty-covered units, always choose OEM.
Easy (2/5). Disconnect power, remove the two mounting screws, transfer the two spade terminals, and reinstall. No refrigerant or gas work required. Typical install time is 10–15 minutes. Always de-energize the furnace at the breaker before servicing.