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The Goodman 0130F00038 Auxiliary Limit Switch (light-blue coded) is a genuine OEM safety control engineered for the Amana/Goodman AMVC80803BXBD two-stage variable-speed gas furnace and compatible AMVC80 series units. This normally-closed thermal switch monitors heat-exchanger and blower-compartment temperatures, opening the burner circuit if the furnace overheats due to restricted airflow, a dirty filter, or blower failure — protecting your equipment and home.
Our OEM version ships with the exact factory calibration and light-blue temperature coding, guaranteeing the correct cutout point and preserving your furnace warranty. A generic equivalent costs less but may carry a different trip temperature, risking nuisance shutdowns or delayed protection. For a safety-critical limit switch, OEM is strongly recommended.
Two wire leads and one mounting screw. Shut off power and gas, swap the switch, and restore. Most homeowners complete this in under 15 minutes. If your furnace repeatedly trips on limit, inspect airflow before replacing.