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The Goodman 10123535 Manual Reset Limit Switch is a genuine OEM red-button high-temperature safety control for the AMH950703BXAB gas furnace. It protects the furnace by opening the ignition/gas circuit when it senses an overheat condition. The red manual-reset button distinguishes its trip temperature and location from companion switches on the unit and requires a hands-on reset after any trip.
The color-coded red button corresponds to a specific factory trip temperature. Substituting a generic switch risks the wrong calibration, causing false trips or unsafe operation. This genuine OEM part guarantees the correct temperature rating, terminal layout, and mounting fit.
Moderate (2/5). Disconnect the spade terminals, unscrew the switch, and mount the replacement. If the switch keeps tripping, diagnose the root cause (airflow restriction or flame rollout) before returning the unit to service. Turn off power and gas before servicing.