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The Goodman 10123533 Manual Reset Limit Switch is a genuine OEM safety control for the AMH950704CXAE gas furnace. This high-limit switch monitors temperature and cuts power to the gas valve if the furnace overheats or experiences a flame-rollout condition, protecting the heat exchanger and household from unsafe temperatures. Because it is a manual reset device, it must be physically reset after tripping — a repeated trip signals an underlying airflow or combustion problem that should be diagnosed.
The OEM 10123533 is calibrated to the exact trip temperature and mounting footprint specified for the AMH950704CXAE. Generic limit switches may carry the wrong temperature rating or terminal orientation, which can cause nuisance tripping or, worse, fail to protect against a genuine overheat. For a safety-rated control, the genuine Goodman/Amana switch is the correct and reliable choice.
Easy to Moderate (2 of 5). Turn off gas and electrical power, disconnect the two wire terminals, unscrew the old switch from its bracket, mount the new switch, and reconnect the wiring. A 15–20 minute job for a handy owner. If the switch keeps tripping after replacement, have a technician check airflow, filters, and the heat exchanger.