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The genuine Goodman 0130F00038 Auxiliary Limit Switch (light-blue body) is a direct-fit safety control for the Goodman/Amana AMVC80604BXAA two-stage variable-speed gas furnace. This normally-closed thermal switch opens the ignition circuit if it senses excessive temperature in the blower or burner area, protecting the heat exchanger and cabinet from overheating during restricted-airflow conditions.
Because each limit switch is calibrated to a specific trip temperature (indicated by the color band), using the correct OEM 0130F00038 is critical — a generic switch with the wrong trip point can either nuisance-trip or, worse, fail to protect the furnace. We recommend OEM for any safety control. Generic equivalents are offered only when an exact temperature match is confirmed.
Two spade terminals and two mounting screws. Cut power at the disconnect, photograph the wiring, remove the old switch, and install the replacement in the same orientation. Typical replacement time is 10–15 minutes. If a limit switch is tripping repeatedly, diagnose the airflow restriction (dirty filter, blocked coil, failing blower) rather than simply replacing the switch.
Fits Goodman and Amana AMVC80604BXAA furnaces.