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The 0130F00038 is a genuine Goodman/Amana auxiliary (secondary) limit switch, identified by its light-blue body, engineered for the AMH80604BXBA gas furnace and other compatible Goodman, Amana, and Janitrol models. This normally-closed thermal safety switch monitors temperature at the heat exchanger or blower compartment and opens the circuit if the unit overheats, shutting down the burners to prevent damage and protect your home.
This is the factory OEM part, calibrated to the exact trip temperature your furnace's control logic expects. Generic universal limit switches may carry a different set point or mounting footprint, risking nuisance trips or failure to protect the unit. For a safety component, we strongly recommend the OEM switch.
Easy (1/5). Two-wire quick-connect replacement handled with a nut driver. Always disconnect power before servicing. If unsure, consult a licensed HVAC technician.