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The Goodman 0130F00038 is a genuine OEM auxiliary limit switch (light blue) engineered for the Amana/Goodman AMH80804BXBA gas furnace. This normally-closed thermal safety switch opens the control circuit if it senses abnormal heat exchanger or rollout temperatures, shutting down the burner to protect your equipment and home. A failed or nuisance-tripping limit switch is one of the most common causes of a furnace that fires briefly then shuts off on a lockout code.
OEM vs. Generic: This is the factory-specified part with the exact trip temperature and mounting bracket for your unit. Aftermarket switches with the wrong setpoint can cause premature nuisance trips or fail to protect the heat exchanger. For a safety component, OEM is strongly recommended.
Install difficulty: Easy (1/5). Disconnect power, unplug the two spade terminals, remove the mounting screws, and swap. A basic multimeter for continuity testing is helpful. Typical DIY replacement time is under 15 minutes.