IMAGE COMING SOON
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
The Goodman 20162904 Primary Limit Temperature Control is the main high-limit safety switch for the ACEC960803BNAB 96% AFUE gas furnace and compatible models. Mounted on the heat exchanger or blower deck, it continuously senses supply-air temperature and shuts off the burners if the furnace overheats — a critical protection against blocked airflow, dirty filters, or blower failure.
This OEM control is calibrated to the precise cut-out temperature engineered for this furnace cabinet. Generic limits with different trip points can cause repeated lockouts or, worse, fail to protect the heat exchanger. For a primary safety control we recommend the genuine Goodman part.
Easy to Moderate — usually a 20-30 minute job with a nut driver. Disconnect power before servicing and note wire and sensor-probe orientation. Professional installation is recommended if you are unsure.