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The Goodman 0130F00038 Auxiliary Limit Switch (light blue) is a genuine OEM safety control for the Goodman ACVC950915DXAC gas furnace. This normally-closed thermal switch opens the circuit if it detects abnormal heat in the blower compartment or near the heat exchanger, shutting down the burners to prevent overheating, cracked heat exchangers, and fire hazards.
Limit switches are calibrated to a specific trip temperature — the light blue color code identifies the exact rating. Installing the genuine OEM 0130F00038 guarantees the correct cutout point. A generic switch with the wrong trip temperature can either nuisance-trip or, worse, fail to protect the furnace.
Easy (2/5). Cut power, disconnect the two spade terminals, remove the mounting screws, and install the matching switch. Verify the color/temperature rating matches before powering on. Consult a technician if the switch keeps tripping — it usually signals an underlying airflow or combustion problem.