IMAGE COMING SOON
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
The 10123529 is a genuine OEM manual-reset high-limit switch for Goodman and Amana gas furnaces, including the AMEC801005CXAA. This safety control opens the circuit if the heat exchanger or flue exceeds its rated temperature — protecting against overheating from restricted airflow, a failed blower, or a blocked vent. Because it is a manual-reset design, it must be physically reset after a trip, prompting inspection of the underlying cause.
The OEM 10123529 is calibrated to the factory trip temperature, so it protects the heat exchanger without nuisance shutdowns. Generic switches may carry the wrong set point or looser tolerance, risking either false trips or delayed protection. OEM ensures correct safety behavior and code-compliant operation.
Easy — A 10–15 minute repair. Cut power, disconnect the two spade terminals, remove the mounting screws, and install the replacement in the same orientation. Always diagnose why the original tripped before returning the furnace to service.