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The Goodman 0130F00038 Auxiliary Limit Switch is a genuine OEM safety control engineered for the AMEC961004CNAC gas furnace and other compatible Goodman/Amana models. This light-blue thermal limit switch continuously monitors heat-exchanger and burner-compartment temperatures, opening the circuit to shut down the furnace if it overheats. Replacing a failed or nuisance-tripping limit switch restores safe, reliable heating and clears many no-heat and short-cycle faults.
This is a genuine Goodman OEM part built to the exact trip temperature and mounting spec of your furnace, ensuring correct clearances and safety-certified performance. Generic aftermarket limit switches may use different set points or footprints, risking nuisance trips or improper protection. For a critical safety device, OEM is strongly recommended.
Easy (DIY-friendly). Typically two mounting screws and two spade terminals — about 15 minutes. Always shut off gas and power at the breaker before servicing. If unsure, consult a licensed HVAC technician.