IMAGE COMING SOON
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
The Goodman 20162903 Primary Limit Switch is a genuine OEM 150°F high-limit safety control for the Goodman/Amana AMH950704CXAE gas furnace. It continuously monitors heat-exchanger and plenum temperature and cuts power to the gas valve if the furnace overheats — protecting the unit and your home from unsafe conditions caused by restricted airflow or a failed blower.
A limit switch is a safety device, so calibration is critical. The OEM 20162903 is factory-set to trip at the correct 150°F threshold specified for this furnace. Generic switches with the wrong trip point or mounting can either nuisance-trip or fail to protect the heat exchanger. For any safety control, OEM is the responsible choice.
Moderate (2/5). Mounts to the burner bulkhead/vestibule with two screws and two spade terminals — about 15 minutes. Always disconnect power and gas, and diagnose the root cause (dirty filter, blocked ducts, weak blower) before replacing a tripped limit.