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The Goodman 0130F00038 Auxiliary Limit Switch (light-blue coded) is a genuine OEM high-limit safety control engineered for the AMEC960803BNAB gas furnace and other compatible Goodman and Amana models. This normally-closed thermal switch opens the ignition/blower circuit if the heat exchanger or plenum temperature climbs above its rated set point, protecting your furnace from overheating and nuisance failures.
The OEM Goodman switch is factory-matched to the exact trip temperature and bracket geometry of your furnace, ensuring correct safety cutout and a drop-in fit. Aftermarket generics may vary in set point or mounting, risking short-cycling or improper protection. For a critical safety component, OEM is strongly recommended.
Easy (1/5) — Disconnect power, unplug the two spade terminals, remove the mounting screws, and reverse to install. Typically a 10–15 minute repair with basic hand tools.