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The Goodman 10123529 is a genuine OEM manual-reset high-limit safety switch for the Amana AMVC80803BNCA variable-speed 80% AFUE gas furnace. This normally-closed thermal switch opens the control circuit if the furnace overheats or experiences flame rollout, shutting the burners down to prevent heat-exchanger damage and fire. A manual-reset design requires deliberate re-arming, ensuring the underlying fault is addressed before the furnace can restart.
Limit switches are calibrated to a specific trip temperature and mounting footprint. A generic switch with the wrong setpoint can nuisance-trip or, worse, fail to trip when needed. This genuine Goodman switch carries the exact factory temperature rating and terminal layout for reliable, safe protection.
Easy to Moderate. Two spade terminals and two mounting screws. If the switch had tripped, diagnose the overheating cause (dirty filter, blocked flue, failed blower) before returning to service. Disconnect power before replacing.