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The Goodman 0130F00038 Auxiliary Limit Switch is a genuine OEM high-limit safety control engineered for the ADSS800804BXAD gas furnace and compatible Goodman/Amana models. Identified by its light-blue housing, this bimetal switch monitors heat-exchanger and plenum temperatures, opening the ignition circuit if the furnace overheats due to restricted airflow, a dirty filter, or blower failure. Installing the correct OEM limit switch keeps your safety circuit calibrated to the factory trip point.
OEM vs. Generic: Our genuine OEM 0130F00038 is calibrated to Goodman's exact trip temperature and terminal layout, ensuring proper safety-circuit operation and preserving your equipment warranty. Universal aftermarket limit switches may use a different trip point or bracket, risking nuisance lockouts or unsafe operation.
Install Difficulty: Easy — remove power, unplug the two spade terminals, unscrew the mounting screws, and swap in the new switch. Roughly a 15-minute job for a homeowner; verify the correct trip rating before energizing.