British Gas glow worm 330 boiler fails to ignite

4 Aug 2008
Reaction score
United Kingdom

I replaced a radiator with a towel rail, and forgot to turn off the boiler when I drained down the system.

I got the F5 error code, which I fixed by resetting the small red thermo cut-out switch, and the boiler started working fine.

However, I did this 2 weeks ago, and twice the boiler has failed to ignite and I get an F1 error code. Turning the boiler on/off seems to work. The boiler was 100% reliable before I got the F5 error code, so I am not sure if I have damaged something.

Anyone got any clues, or seen this before ?

Sponsored Links
Just call out BG....either under warranty or have you got a contract??

Can be lots of things on these, all of which is not for the faint hearted!

DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.

Are you a trade or supplier? You can create your listing free at DIYnot Local

Sponsored Links