The pilot light on your gas furnace utilizes a small flame for the purpose of igniting the gas burner when your furnace switches on. The pilot light on older gas furnaces must be lit manually and stays on continually, while newer models use an electronic ignition system that is safer and uses less gas, as the pilot light is lit automatically only when the furnace switches on. Knowing where the pilot light is located will be helpful in getting your furnace back up and running quickly.
Remove the front sheet metal access panel on the front of the furnace. Lift straight up on the panel slightly to release it from the tracks. Pull the panel away from the furnace and place it aside.
Follow the main gas line to the pilot valve body, which is visible after removing the access panel.
Locate the pilot valve body, which is box shaped and has a knob to control the gas flow to the furnace and is usually mounted at the base of the furnace at the front.
Locate the pilot nozzle, which is mounted within the pilot valve body near the control valve. Replace the front access panel when your are finished.