IMAGE COMING SOON
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
The Goodman 20162904 Primary Limit Temperature Control is an OEM high-limit safety switch for the AMH950453BXAE furnace and compatible Goodman/Amana models. Mounted on the heat exchanger or vestibule panel, this normally-closed control monitors supply-air temperature and shuts off the gas valve if the furnace overheats — protecting the heat exchanger and preventing a fire hazard. If your furnace short-cycles, trips on high limit, or fails to fire, a failed limit control is a common cause.
OEM vs. Generic: This is a safety-rated component. The OEM 20162904 is calibrated to your furnace's exact trip and reset temperatures. A generic limit set to the wrong temperature can allow dangerous overheating or cause nuisance shutdowns. Always use the OEM part for limit controls.
Install difficulty: Easy to Moderate — two mounting screws and two spade terminals, but requires power off and correct orientation on the heat exchanger. A basic DIY repair for handy owners; professional install recommended for warranty units.