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The Goodman 0130F00038 Auxiliary Limit Switch (light blue) is a factory-original high-temperature safety cutout designed for the VMES961005CNAA gas furnace and compatible Goodman/Amana models. This normally-closed thermal switch monitors heat-exchanger and cabinet temperatures, opening the control circuit to shut down the burners if the furnace overheats — protecting the unit and your home from unsafe operating conditions.
This is a genuine Goodman OEM component, calibrated to the exact trip temperature specified for your furnace. Generic aftermarket limit switches often carry loose temperature tolerances that can cause nuisance trips or, worse, fail to open when needed. Because this is a safety device, we strongly recommend the OEM part for correct calibration and reliable protection.
Easy (1 of 5). Remove power, unplug the two spade terminals, remove the mounting screws, swap in the new switch, and reconnect. Typically a 10–15 minute repair for a homeowner comfortable working around a de-energized furnace. Always disconnect power at the breaker before servicing.