How to Relight a Pilot Light on a Gas Furnace: 1 Minute to Relight Your Furnace Pilot Light Successfully!

Relighting the pilot light on a gas furnace can seem intimidating, but with careful attention to safety and guidance, you can handle it yourself. First, locate your furnace’s manufacturer instructions (often found on a sticker inside the access panel) — the process may vary slightly depending on your furnace model. Here’s a general step-by-step approach:

1. Turn Off the Gas: Find the gas control knob, usually near the bottom of the furnace, and turn it to the “off” position. Wait at least five minutes to allow any residual gas to dissipate, preventing a hazardous buildup.
2. Access the Pilot: Open the furnace’s access panel to reach the pilot light assembly. You may need a flashlight to see clearly.
3. Turn to "Pilot": Turn the gas control knob to the “pilot” setting. This is usually clearly marked.
4. Press and Hold: Press and hold the “reset” or gas control button. While holding it down, use a long lighter or match to ignite the pilot light. Keep holding the button for 30–60 seconds after ignition to let the thermocouple warm up, which allows the pilot to remain lit.
5. Release and Observe: Slowly release the control button. If the pilot light stays lit, turn the knob to the “on” position. If it goes out, repeat the process. If it still won’t stay lit after a few attempts, there may be a larger issue requiring professional help.
6. Replace the Panel: Once the pilot is reliably burning, replace the access panel and restore power to the furnace if you turned it off.

As a designer, I always recommend integrating home safety and utility access into your layout. For instance, ensuring that critical systems like your furnace are easily accessible—both physically and visually—can save time and prevent stress when maintenance is needed. If you’re updating your home, using a room planner can help you visualize safe and convenient locations for essential appliances and access panels.

Tips 1:

Always keep a flashlight and long-reach lighter or matches in your utility area for emergencies like this. If the pilot light repeatedly goes out, ensure the area around your furnace is tidy and well-ventilated.

FAQ

Q: Why does my pilot light keep going out?

A: It could be due to a dirty or faulty thermocouple, drafts in the area, or an issue with the gas supply. Persistent problems should be evaluated by a professional.

Q: Is it safe for me to relight the pilot light myself?

A: Yes, as long as you follow safety guidelines, but if you smell gas or feel unsure, contact a professional immediately.

Q: What should I do if I smell gas before attempting to relight?

A: Do not attempt to relight. Leave the area immediately and contact your gas provider or emergency services.

Q: How can I prevent my pilot light from going out?

A: Regular maintenance, cleaning, and ensuring your furnace area is draft-free can reduce issues.

Q: Should I replace my furnace if the pilot light problem persists?

A: Not necessarily—it may be a minor repair. Have a professional inspect the system to determine the root cause.