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The Goodman 0130F00038 Auxiliary Limit Switch (light blue) is a genuine OEM thermal safety component designed for the AMH950905CXAC gas furnace and other compatible Goodman/Amana models. This normally-closed auxiliary limit protects the furnace from overheating by interrupting the burner circuit if the internal temperature exceeds its factory-calibrated trip point, then automatically resetting once temperatures return to a safe range.
Our OEM 0130F00038 is calibrated to the exact factory trip temperature for your furnace, ensuring correct safety response and preserving your equipment warranty. Generic universal limits can carry the wrong trip rating, causing nuisance shutdowns or, worse, failing to protect the heat exchanger. For a safety-critical part like this, OEM is strongly recommended.
Easy (2/5) — Typically two screws and a pair of quick-connect terminals. Always disconnect power before servicing. If you are unsure about wiring, consult a licensed HVAC technician.