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Keep your Goodman ADSS800603AXAC furnace protected with the genuine OEM 0130F00038 auxiliary limit switch, identified by its light-blue marking. This secondary high-temperature control provides backup overheat protection at the blower or secondary heat-exchanger area, tripping to shut down the burner if temperatures exceed safe limits.
The OEM Goodman auxiliary limit is factory-set to the specific trip point for this model — the light-blue code marks its calibration. Generic switches often differ in trip temperature and mounting, risking nuisance lockouts or inadequate protection. Match the OEM rating for correct safety behavior.
Easy — two screws and two wire terminals, about 10–15 minutes. Always disconnect power before servicing.