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The Goodman 0130F00036 is a genuine OEM high-temperature limit switch — identified by its pink color code — for the GDH80403ANBC gas furnace and compatible Goodman and Amana models. This normally-closed thermal safety switch monitors heat-exchanger temperature and opens to shut off the burners if the furnace overheats, protecting against blocked airflow, dirty filters, or blower failure. The pink color designates its specific trip temperature — using the exact color-coded part is essential for correct, safe operation.
Limit switches are calibrated to a precise trip point encoded by their color. A generic switch with the wrong setpoint can either nuisance-trip or fail to protect the heat exchanger. Always match the OEM color-coded part.
Easy — Cut power, remove two screws, transfer the spade connectors, and mount the new switch. Straightforward, but confirm you have the pink-coded version before ordering.