How to Fix a Boiler Pilot Light That Has Gone Out
Quick Answer
Follow the boiler instructions to relight the pilot, or replace the thermocouple if faulty.
How to troubleshoot a Boiler Pilot Light That Has Gone Out
A boiler pilot light that has gone out can leave you without heating. This guide covers relighting the pilot light safely.
Step-by-Step Fix
- Turn off the gas supply and wait 5 minutes.
- Access the pilot light access panel.
- Follow the boiler instructions for relighting the pilot.
- If it will not stay lit, the thermocouple may be faulty.
- Replace the thermocouple if you are Gas Safe registered.
- If unsure, call a Gas Safe engineer.
Common Error Codes
| Code | Meaning | Resolution |
|---|---|---|
| Pilot won't stay lit | Faulty thermocouple | Replace the thermocouple. |
| No gas supply | Gas valve closed | Check the gas supply is turned on. |
Frequently Asked Questions
Why has my boiler pilot light gone out?
A draft, faulty thermocouple, or low gas pressure.
Can I relight a pilot light myself?
Yes, but follow the manufacturer's instructions carefully.