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The Goodman 10123535 is a genuine OEM manual reset limit / rollout switch engineered for the AMH950704CXAC gas furnace and compatible Goodman and Amana models. This is a critical high-limit safety control: it monitors heat exchanger and burner-area temperatures and permanently opens the circuit if an unsafe overheat or flame rollout condition occurs, shutting the furnace down until the red button is manually reset. Because it is a manual-reset device, tripping usually signals an underlying issue — a blocked flue, cracked heat exchanger, or restricted airflow — that should be diagnosed before resetting.
The OEM Goodman 10123535 guarantees the exact trip temperature, mounting footprint, and terminal orientation specified for your furnace — the safest choice for a life-safety component. A quality generic equivalent can lower cost while matching the trip point and terminals, but verify the temperature rating before installing. For safety controls we recommend OEM.
Easy (2/5). Disconnect power, note wire positions, unscrew the switch, transfer the leads, and remount. Most homeowners can complete it in 15 minutes. If the switch trips again after replacement, stop and call a licensed HVAC technician.