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Restore safe operation to your Goodman GMH951155DXAE 95% AFUE two-stage gas furnace with this genuine OEM manual reset limit switch. This flame rollout safety device monitors the burner and heat-exchanger area for abnormally high temperatures caused by blocked venting, cracked heat exchangers, or restricted airflow. When a fault is detected the switch trips and cuts power to the gas valve, then must be manually reset with the integrated button once the condition is corrected — a deliberate design that forces a service check before the furnace restarts.
The OEM 10123533 is calibrated to the exact trip temperature specified by Goodman engineering, ensuring the furnace's safety interlock behaves as designed. Generic look-alikes often carry loose temperature tolerances that cause nuisance trips or, worse, fail to trip when they should. For a safety-critical component, genuine OEM is strongly recommended.
Easy — Typically a 10–15 minute job. Shut off power and gas, unplug the two spade terminals, remove the mounting screws, install the new switch, and reconnect. No specialized tools required. If the switch has tripped, always diagnose the root cause (venting, airflow, heat exchanger) before returning the unit to service.