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The Goodman 10123533 Manual Reset Limit Switch is a genuine OEM high-temperature safety control for the AMH950703BXAB gas furnace. It monitors heat exchanger and burner-area temperatures and trips to cut gas/ignition if the furnace overheats. Because it is a manual reset device, it stays open until pressed, forcing a deliberate inspection before the furnace can restart — an important safety feature.
Limit switches are calibrated to a specific trip temperature. A generic switch with the wrong rating can nuisance-trip or, worse, fail to trip — a safety hazard. This genuine OEM switch carries Goodman's exact factory temperature calibration and mounting footprint.
Moderate (2/5). Requires disconnecting two spade terminals and removing mounting screws. A repeated trip usually signals an underlying issue (restricted airflow, flame rollout) that should be diagnosed. Always shut off power and gas first.