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The Goodman 0130F00035 is the factory primary high-limit switch — identified by its purple cap — for the AMH80403AXAA gas furnace and compatible Goodman/Amana models. This safety control monitors heat-exchanger temperature and cuts power to the gas valve if the furnace overheats, protecting against restricted airflow, dirty filters, or blower failure. A tripped or failed limit causes no-heat or intermittent shutdown lockouts; replacing it with the correct OEM switch restores safe operation at the proper trip temperature.
The OEM 0130F00035 is calibrated to Goodman's exact trip temperature for this furnace — the purple color code matters. A generic limit with a different setpoint can nuisance-trip or, worse, fail to protect the heat exchanger. Because this is a life-safety component, we recommend genuine OEM only.
Easy (10–15 min). Power off, remove two mounting screws, transfer the wire terminals, and secure the new switch to the same location. Any HVAC tech or careful DIYer can handle it.
Fits: AMH80403AXAA. Match the color/part number on your existing switch before ordering.