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The Goodman 0130F00038 Auxiliary Limit Switch is a genuine OEM safety control designed for the Amana/Goodman AMVC800604BXAA 80% AFUE variable-speed gas furnace and compatible models. This light-blue-coded, temperature-activated switch protects your furnace by cutting the heating circuit if the heat exchanger or plenum exceeds safe operating temperature, preventing overheating and nuisance shutdowns.
Genuine OEM limit switches are factory-calibrated to the exact trip temperature your control board expects. Generic switches may carry a lower price but risk incorrect set points, premature tripping, or failure to protect the heat exchanger. For a critical safety component, the OEM part is the recommended choice.
Easy (1/5). A basic two-wire replacement most homeowners can complete in minutes with the power off. Disconnect the wiring, unclip or unscrew the old switch, and mount the new unit in the same position. Always shut off power and gas before servicing.