Ideal classic slimline ff360 ignition problem

[thorn]

Hi all, any help much appreciated. Have been to a ff360 today with a seemingly intermittent fault. With a demand for heat, the boiler will occasionally start fine first go and stay on for as long as needed, the problem is it then sometimes seems to not want to relight the next time. Don't think this is an overheat problem as it can be several hours later and no sort of lockout seems to have kicked in. Boiler has been serviced (was in pretty poor state before - told by the customer it was its first service in 10.years!).
It is the electric ignition so no thermocouple to check, and the spark does not appear to be arcing to anywhere it shouldn't. Fan has 240v and the pressure switch is proving. I know some people say that there is no such thing as an intermittent fault but I'm struggling with this one, any suggestions.
Thanks
james

 

[Dotty]

Sorry buddy

We cannot and will not give advice on the installation or repair of boilers, cookers or ANY gas appliances for your own safety.

Please go to www.User PlumbersForums.net Instead - Copy the content, don't link to it.co.uk or post a thread in the 'I'm looking for a plumber / gas engineer' section of these forums remembering to include your location.
[DLMURL="http://www.ukplumbersforums.co.uk/im-looking-plumber-gas-engineer/"]I'm looking for a Plumber or Gas Engineer[/DLMURL]

If you are gsr please increase your post count to 10+ then send a PM (Private Message) with your gsr details to either Gas man - View Profile: gas man - Plumbing Forum | Plumbing Advice | Plumbers Forums | A forum for plumbers advice in the UK or Redsaw - View Profile: REDSAW - Plumbing Forum | Plumbing Advice | Plumbers Forums | A forum for plumbers advice in the UK who will check you and then give you access to the gsr private forum.
Providing gas-related advice to anybody who should not be touching gas and cannot prove their competence is unacceptable. We will take whatever action we deem appropriate to prevent such advice being given

Thank you.

UKPF TA's, Mods and Admin teams.
[DLMURL="http://www.co-gassafety.co.uk/deaths.html"]
http://www.co-gassafety.co.uk/deaths.html[/DLMURL]

http://www.ukplumbersforums.co.uk/central-heating-forum/42241-notice-gas-safety-related-advice.html