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The Goodman 0130F00038 Auxiliary Limit Switch is a genuine OEM thermal safety control designed for the Goodman ACVC961205DNBA modulating gas furnace and compatible ACVC96 / GCVC96 series equipment. This light-blue auxiliary limit acts as a redundant high-temperature cutout, opening the control circuit if the heat exchanger or blower compartment exceeds its rated temperature, protecting the furnace from overheating and nuisance lockouts.
This is a factory-original Goodman component, calibrated to the exact trip temperature specified for the ACVC96 platform. Generic aftermarket limits often carry approximate set points that can cause premature tripping or fail to protect at the correct threshold. For a safety device, matched OEM calibration is strongly recommended over a universal substitute.
Easy (1/5). Replacement requires disconnecting power, removing two mounting screws, transferring the spade terminals, and reseating the switch against the mounting surface. Most homeowners and all HVAC techs can complete this in under 15 minutes. Always shut off electrical and gas supply before servicing, and verify correct seating for accurate temperature sensing.