Potterton Combi flame failure problem



Hi. First time on here, so can anyone help.
The problem i have is that the boiler will fire up and work fine, both rads and water, but after a time, around 20-30 minutes the flame failure light will come on and the boiler will not relight again. When the boiler is cold i can switch it on and off many times and it will always relight.
Any ideas please!! anyone? Would be much appreciated. Thanks.

PS. I do not have an external thermostat on this boiler only the water and heating control knobs on the boiler, just wondered if this could be an issue?
Sponsored Links
26 Jun 2004
Reaction score
United Kingdom
I have had a gas safe boiler fitter out and he does not seam to have a clue, he just keeps saying that it is working fine, cleans a few bits and then leaves, only for the same problem to happen again 30 mins later.

That does not surprise me! All a fitter is doing is to screw a boiler to the wall and connect the pipework.

You need a boiler engineer who specialises in diagnosing and repairing boiler faults.

Mentioning the boiler model would help. But there can be so many different causes of locking out that guesswork is just that.


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