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The Goodman 0130F00038 Auxiliary Limit Switch (light blue) is a genuine OEM safety control engineered for the Amana/Goodman AMH81205DNAA gas furnace and compatible models. This normally-closed thermal limit monitors heat-exchanger and blower-compartment temperature, opening the burner circuit if the furnace overheats due to restricted airflow, a dirty filter, or blower failure. Replacing a failed or nuisance-tripping limit restores safe, reliable heating.
The genuine OEM 0130F00038 is factory-calibrated to the exact trip temperature specified for this furnace, guaranteeing correct fit and mounting. Generic universal limits can carry a different setpoint or bracket, risking short cycling or a lockout. For a safety-critical component, we recommend the OEM part.
Easy (1/5). Turn off power and gas, disconnect the two spade terminals, remove the mounting screws, and swap in the new switch. Most DIYers complete the job in 10–15 minutes. Always test furnace operation after replacement.