How to Relight a Pilot Light on Your Furnace: 1 Minute to Restore Heat and Comfort

Relighting a pilot light on your furnace is a common homeowner task, especially during colder months when your heating system needs to function efficiently. Before starting, ensure your safety by reading the manufacturer’s instructions specific to your furnace model and keeping the area well-ventilated. Here’s a step-by-step guide:

1. Turn Off the Furnace: Locate the furnace’s power switch or thermostat and ensure it's turned off to prevent gas flow while you work.
2. Find the Pilot Light Assembly: Typically, it's at the base of the furnace near the burner. You should see a small gas valve labeled “Pilot,” “On,” and “Off.”
3. Turn the Gas Valve to ‘Off’: Wait at least 5 minutes for gas to dissipate. This is crucial for safety and to prevent accidental ignition.
4. Switch to ‘Pilot’ Position: Hold a lit match or use a long lighter near the pilot opening. Press and hold the reset button as you ignite the pilot.
5. Continue Holding the Button: Keep it pressed for 20-30 seconds after the pilot is lit. Then slowly release—if it stays lit, your task is successful; if not, repeat the process once more before seeking professional help.
6. Turn Valve to ‘On’: Once the pilot light is stable, switch the gas valve to “On.”
7. Test the Furnace: Power it on and set the thermostat to heat. Observe the operation for a few minutes to ensure everything runs smoothly.

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Tips 1:

Always keep the furnace area tidy and don't store flammable items nearby. Good lighting in your utility area helps safely relight and maintain your furnace. If you’re unsure or smell a strong gas odor, stop immediately and call a professional.

FAQ

Q: Why did my furnace pilot light go out?

A: Pilot lights can go out due to drafts, dirty sensors, or issues with the thermocouple. Regular cleaning and inspection help prevent these problems.

Q: Can I relight the pilot light myself?

A: Yes, most homeowners can safely relight the pilot by following the furnace’s manual instructions. However, if you feel uncomfortable or gas is strongly present, contact a professional.

Q: What if the pilot light won’t stay lit?

A: If it repeatedly goes out, the thermocouple may be faulty or dirty, or there could be a larger gas issue. Professional inspection is advised.

Q: How often should I check my furnace’s pilot light?

A: At least once before the cold season and after any unusual furnace shutdown.

Q: Is it dangerous to have a furnace with a blown-out pilot light?

A: Although not immediately dangerous, attempted relighting must be done with caution to avoid gas buildup. If in doubt, always seek professional help.