IMAGE COMING SOON
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
The genuine Goodman 10123533 manual reset limit switch is the OEM high-temperature safety control for the Goodman GKS90704CXAD gas furnace and compatible GKS90 series models. This normally-closed switch monitors heat exchanger temperature and opens the circuit to shut down the burners if the furnace overheats, protecting against fire and heat exchanger damage. Because it is a manual reset design, it requires a physical button press to restore operation after a trip — a deliberate safety feature.
This OEM limit switch is calibrated to Goodman's exact trip temperature and mounting footprint for the GKS90 heat exchanger. Generic switches with incorrect trip points can either nuisance-trip or fail to protect the unit. Genuine 10123533 ensures correct safety response and warranty compliance.
Power down the furnace at the disconnect, remove the two mounting screws and the spade wire connectors, install the new switch in the same orientation, and reconnect. If the switch had tripped, diagnose the underlying overheating cause (dirty filter, blocked airflow) before returning to service.