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BoilerCodes
F.26
Glow-worm fault code

Glow-worm F.26: fault in gas valve

Engineer only

Glow-worm describes F.26 on Betacom A range boilers as: fault in gas valve.

What you can safely do

There is nothing you can safely do yourself with this one. Leave the boiler off and book an engineer.

Call a Gas Safe engineer if

  • Book a Gas Safe registered engineer.
Find a Gas Safe engineer near you Opens the official Gas Safe Register search.

Applies to: Betacom A range. Codes can differ between models, so check your manual.

What F.26 means on each Glow-worm model

From Glow-worm's own fault tables. Your model name is usually on the front of the boiler or in the user manual.

ModelMeaning
Betacom A rangeFault in gas valve

Common questions about Glow-worm F.26

Can I fix Glow-worm F.26 myself?

No. It needs a Gas Safe registered engineer to diagnose. Tell them the exact code and your boiler's model name.

Nearby Glow-worm codes

F.01F.10F.11F.12F.13F.24F.32F.33F.49F.62F.63F.64

See all 41 Glow-worm codes

Sources