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The genuine Goodman 10123529 Manual Reset Limit Switch is a factory OEM high-limit safety control engineered for the Goodman/Amana AMVC80604BXBC gas furnace and compatible 80% AFUE variable-speed models. This switch protects your furnace by cutting power to the gas valve if the heat exchanger area exceeds a safe temperature — a critical safeguard against overheating caused by restricted airflow, a dirty filter, or blower failure. Because it is a manual reset device, it locks out after a trip and must be reset by hand, alerting the homeowner or technician that an underlying condition needs attention.
This is a genuine OEM Goodman component, calibrated to the exact trip temperature your furnace's control board expects. Aftermarket universal limits may carry different set points or lead lengths, risking nuisance lockouts or delayed protection. For a safety-critical part, OEM is the recommended choice to preserve factory performance and any remaining equipment warranty.
Easy (1 of 5). Replacement typically takes 15–20 minutes with basic hand tools: shut off power and gas, disconnect the two spade terminals, remove the mounting screws, and install the new switch in the same orientation. We strongly recommend a licensed HVAC technician diagnose why the original tripped before returning the system to service.
Ships fast from a US warehouse. If you're unsure of compatibility, contact us at info@nationalhvacparts.com with your full furnace model number.