IMAGE COMING SOON
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
The Goodman 10123518 is a genuine OEM manual reset high-limit switch built for the GCH90704CXAB gas furnace and related Goodman/Amana models. This temperature-sensing safety control opens the burner circuit whenever the furnace exceeds its safe operating range, guarding the heat exchanger against damage from restricted airflow or blower failure. As a manual reset switch, it will not automatically re-energize after a trip — a technician must press the reset button, which encourages diagnosis of the underlying fault before the unit resumes heating.
Genuine OEM 10123518 switches are factory-calibrated to your furnace's exact trip temperature, delivering reliable, code-compliant protection. Aftermarket alternatives often differ in trip point or build quality, which can cause premature shutdowns or, worse, fail to protect the equipment. For safety-critical parts, choose OEM.
Moderate — Involves power disconnection, wire transfer, and correct mounting orientation. Professional HVAC installation is recommended. Turn off gas and electrical supply before beginning any service.