In our homes, we have a furnace. In our furnace, there is a pilot light. This is what ignites the burners and starts the heating process. These systems were once standard in all gas furnaces, but some newer systems don’t always contain a pilot light ignition system. An alternative found within newer systems is an electronic ignition system. 

If you happen to have a furnace that utilizes a traditional version, there is a chance that it can go out. When it goes out, your furnace will not be able to produce heat. If you find yourself in this position, don’t worry the fix is simple enough. 

Here is a step by step guide on how to relight a gas furnace’s pilot light

Find the pilot light assembly and its reset switch

A furnace’s pilot light is usually positioned at the bottom of the unit by a knob. The knob is typically marked with three settings: “pilot”, “on”, and “off”.

If you can’t easily find the pilot light and reset switch, look in your furnaces manual for a diagram that indicates its location. If you don’t have the manual, the manufacturer’s website should have a digital version to reference. 

Set the reset switch to off

Turn the knob to the “off” setting. It should be able to adjust this easily using just your fingers. This will stop the flow of gas.

Wait a moment

It’s important to allow a bit of time to pass from turning off the pilot before attempting to relight it. This gives the gas time to dissipate from the chamber, allowing you to safely relight it. A minute or two is enough to make it safe.

Relight the pilot light

Adjust the knob to “Pilot” and let the gas flow to the pilot. Light a lighter or a match and then push the reset button. Hold your flame to the pilot light’s opening. Keep the reset switch pressed until the pilot light is burning steadily. You can now release the button.

Observe the furnace

Once it relit and you’ve released the reset button, your furnace should fire up automatically. Observe the pilot light for a few moments and just make sure it stays lit. While you’re waiting, try and take notice of any drafts or other sources that could have extinguished the light initially to make sure it doesn’t continue to happen.