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The Goodman 10123529 Manual Reset Limit Switch is a genuine OEM high-temperature safety control for the Goodman ADVC81155CXAA gas furnace. This switch monitors for overheating or flame rollout and trips to shut down the burners, requiring a manual reset before the furnace can restart. A tripped or failed limit switch is a protective response — repeated trips indicate airflow or combustion issues that must be diagnosed, and a worn switch that fails to reset must be replaced.
Genuine OEM Goodman guarantees the exact trip temperature and mounting footprint calibrated for this furnace. A generic switch with the wrong set-point can nuisance-trip or, worse, fail to protect against overheating. For a life-safety limit control, OEM is essential.
Rating: Easy (2/5). Power off, unplug the two spade terminals, unscrew the switch, and mount the replacement. About 15–20 minutes with basic tools. If the switch keeps tripping after replacement, have a technician inspect airflow and the heat exchanger.