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The Goodman 10123529 Manual Reset Limit Switch is a genuine OEM high-temperature safety control for Goodman ACVC80603BXBC and compatible gas furnaces. This switch monitors furnace temperature and opens the circuit if it senses an overheat or flame-rollout condition, shutting down the burners to protect the heat exchanger and home.
Because it is a manual-reset device, it must be physically reset after a trip — and a switch that will not reset or trips repeatedly usually needs replacement. Installing a genuine OEM limit switch restores correct trip temperature and dependable safety protection.
The OEM 10123529 is calibrated to Goodman's exact trip temperature and terminal layout, which is essential for a safety control. Generic switches may have different set points or mounting that compromise protection. For a safety-critical component, always use the correct OEM part.
Moderate (3/5). Replacement requires shutting off power and gas, disconnecting the two switch leads, removing mounting screws, and installing the new switch in the same location. Wiring is straightforward but proper placement is critical. If repeated tripping occurs, have a technician diagnose the underlying overheat cause.