A Step-by-Step Guide on Relighting Your Furnace Pilot Light

How To Relight A Pilot Light On A Furnace


Your home’s heating system is a sophisticated network of interconnected components, and while it usually operates seamlessly, there are instances when you may need to deal with the pilot light. This small flame, located at the base of your gas furnace burners, is crucial for igniting the main burner. If it ever goes out, you can typically relight pilot light on furnace, yourself with minimal effort.

Relighting Your Furnace Pilot: A Simple Guide

When the pilot light on your gas furnace goes out, you can follow these steps to relight it:

1. Locate the Pilot Control:

– Find your furnace’s pilot control knob or wheel. This is typically behind an access panel near the bottom of the furnace, marked with “On” and “Off.”
– If you’re unable to locate it, consult your owner’s manual for guidance.

2. Turn Off the Pilot Switch:

– Switch the pilot control to the “Off” position.
– Allow the furnace to shut down completely by waiting for about 10 minutes.

3. Set Thermostat to Lowest Temperature:

A-s a safety measure, set your thermostat to the lowest possible temperature or turn it off.

4. Identify the Burner Location:

– While waiting, identify where the burner should be lit. Follow the pipe where the gas is coming out.

5. Prepare to Light the Pilot:

– Turn the pilot control and push it inwards.
– Wait to hear the gas hissing, and while continuing to push, use a fireplace match or a long butane lighter to carefully relight the pilot light.

6. Continue Holding the Pilot:

– Keep pushing the pilot in for an additional 2 minutes while the burner is lighting up.

7. Release the Pilot:

– After a minute or two, release the pilot and bring it to the “On” position.

8. Wait for Gas to Burn Off:

– Wait for approximately 15 minutes to ensure any leaked gas in the furnace has burned away.
– Turn on the thermostat and, if available, the blower to circulate air through the system and warm up your home quickly.

9. Safety Measures:

– Leave the room until you hear the furnace fire up.
– Keep all doors and windows closed until the furnace shuts down completely.
– Do not turn on electrical switches or appliances until you’re certain the furnace has shut down.

10. Professional Assistance:

– If the pilot light remains unlit after attempting the above steps multiple times or won’t stay lit, it’s advisable to contact a professional for furnace servicing.


By following these guidelines and being mindful of safety measures, homeowners can confidently address pilot light issues, contributing to a warm and comfortable living space during the colder months. Regular maintenance, including prompt attention to pilot light concerns, enhances the longevity and efficiency of your furnace, providing peace of mind for you and your family.

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About the author


I am Ben , a seasoned HVAC specialist with over 6 of experience in the HVAC industry. I holds HVAC Certification and has a proven track record in providing expert advice on HVAC systems.

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