How to Safely Relight Your Boiler Pilot Light

Is your boiler pilot light out? Learn how to safely relight it with this step-by-step guide from Generational Homes LTD. Keep your heating system running efficiently with our expert advice.

Daniel Johns

A modern white wall-mounted boiler with copper pipes and an open control panel for servicing.

A boiler pilot light going out can leave your home without heat or hot water, especially during colder months. While this issue is common, safely relighting the pilot light is essential to restore your boiler’s function without compromising safety.

At Generational Homes LTD, we prioritize your safety and comfort. In this blog, we’ll guide you through the step-by-step process of relighting your boiler pilot light, plus tips on when to call a professional gas engineer.

1. Check If Your Boiler Uses a Pilot Light

Not all boilers have a traditional pilot light.

What to Do:

  • Review your boiler’s manual to confirm if it uses a pilot light.
  • Modern boilers may have electronic ignition systems that don’t require manual relighting.

Pro Tip: If you’re unsure about your boiler type, consult a gas engineer.

2. Understand Why the Pilot Light Went Out

Knowing the cause helps prevent future issues.

Common Causes:

  • A strong draft or sudden gust of air.
  • Accumulated debris or dirt in the pilot assembly.
  • A faulty thermocouple (the safety device that shuts off the gas supply if the pilot light goes out).

Quick Tip: If your pilot light goes out frequently, it could indicate a larger problem requiring professional attention.

3. Gather Your Tools

Be prepared with the right tools to ensure safety.

What You’ll Need:

  • A long lighter or matchstick.
  • Your boiler manual for specific instructions.
  • A clean cloth for wiping away dust or debris.

Safety Tip: Ensure you have proper ventilation before starting.

4. Turn Off the Boiler and Gas Supply

Always prioritize safety when working with gas appliances.

What to Do:

  1. Turn the boiler’s power switch to “Off.”
  2. Locate the gas control valve and set it to the “Off” position.
  3. Wait at least 5 minutes to allow any residual gas to dissipate.

Why It Matters: This step minimizes the risk of gas buildup, which can be hazardous.

5. Locate the Pilot Light and Reset Button

Familiarize yourself with the pilot assembly.

What to Look For:

  • The pilot light is usually located near the burner assembly.
  • The reset button is often red or labeled as “Pilot Reset.”

Quick Tip: Refer to your boiler’s manual for the exact location and instructions.

6. Relight the Pilot Light

Follow these steps carefully to relight the pilot light.

Steps:

  1. Turn the gas control valve to the “Pilot” position.
  2. Press and hold the reset button while igniting the pilot light with a lighter or match.
  3. Continue holding the button for 30–60 seconds to allow the thermocouple to warm up.
  4. Release the button and check if the pilot light stays lit.

Safety Tip: If the pilot light doesn’t stay lit after two attempts, stop and call a professional.

7. Turn the Boiler Back On

Restore power and gas to resume normal operation.

What to Do:

  1. Turn the gas control valve to the “On” position.
  2. Switch the boiler’s power back on.
  3. Observe the boiler to ensure it operates correctly and the pilot light remains lit.

Pro Tip: Test your heating system to confirm it’s working properly.

8. Prevent Future Pilot Light Issues

Regular maintenance keeps your boiler in top shape.

Tips for Prevention:

  • Schedule annual boiler servicing to clean and inspect the pilot assembly.
  • Keep the boiler area free from dust and debris.
  • Protect your boiler from drafts by sealing gaps around doors and windows.

Pro Tip: A well-maintained boiler is less likely to experience pilot light problems.

When to Call a Professional

Some issues require expert attention.

Signs You Need Professional Help:

  • The pilot light won’t stay lit after multiple attempts.
  • You smell gas or notice unusual odors near the boiler.
  • The boiler exhibits additional issues, such as uneven heating or strange noises.

At Generational Homes LTD, our Gas Safe registered engineers provide fast, reliable boiler repairs to ensure your safety and comfort.

Why Choose Generational Homes LTD for Boiler Services?

Certified Experts:
Our Gas Safe registered engineers have extensive experience with all boiler types.

Comprehensive Services:
From pilot light repairs to full boiler installations, we handle it all.

Emergency Assistance:
We offer 24/7 support for urgent boiler issues.

Customer Satisfaction:
Your safety and satisfaction are our top priorities.

Conclusion

Relighting a boiler pilot light is a straightforward process, but it’s important to follow safety precautions and know when to seek professional help. By taking these steps, you can restore heat and hot water to your home quickly and efficiently.

Need help with your boiler? Contact Generational Homes LTD for expert gas engineering services. Our team is here to keep your boiler running smoothly—schedule your service today!

Ready to get started?

Book a free consultation or contact our team today for reliable home services.

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Call us on: 0207 362 0120

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