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The Goodman 0130F00038 is a genuine OEM auxiliary limit switch — marked by its light-blue temperature code — for the Goodman/Amana VDS80804BXAA gas furnace. This secondary safety switch supplements the primary high-limit, typically monitoring the blower compartment or a secondary zone of the heat exchanger. If temperatures in that area exceed the safe threshold, the switch opens the control circuit to shut down the burners, guarding against overheating from restricted airflow or blower faults.
Auxiliary limits are set to a precise trip point that differs from the primary limit — the light-blue code is not interchangeable with other colors. A mismatched aftermarket switch can trip prematurely or bypass critical protection. This genuine OEM Goodman part carries the exact factory calibration and mounting geometry for correct, code-compliant operation.
Easy (DIY-friendly). Disconnect power, transfer the two spade connectors, and re-mount the switch in the original location and orientation — roughly 15 minutes. Confirm the color code matches before installing, and address any recurring trips by resolving the root airflow issue rather than replacing the switch repeatedly.