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 the Goodman/Amana AMES800805CXAA gas furnace. This safety control opens the gas/ignition circuit if the heat exchanger or burner compartment overheats — protecting against cracked heat exchangers, fire, and blocked-airflow conditions. Because it is a manual reset, it will not auto-recover, forcing a technician to inspect the root cause before the furnace can run again.
The OEM 10123529 is factory-calibrated to the furnace's exact trip temperature and mounting footprint — essential for a safety device. A generic switch with the wrong temperature rating can trip too early (nuisance lockouts) or too late (allowing dangerous overheating). For a UL-recognized safety component, never substitute — install the OEM part rated for this model.
Easy–Moderate (2/5). Disconnect power, unplug the two spade terminals, remove the mounting screws, and swap in the new switch. About 15–20 minutes. If the old switch tripped, diagnose the overheat cause (dirty filter, blocked ductwork, failing blower) before restoring service.