Hi.
When the boiler is turned on it fires up for a few seconds then switches itself off. When it first started if we turned the boiler off & on again it worked fine, now it just won't stay on??? Any ideas on what the problem is and how much it might cost to fix?
Thanks for any help :)

Bill, March 2010

Hi,
It's probably the PCB which is part no. 245131 which is causing this. Quite often the flow switches also fail, although I have exactly the same issue as you and the flow switches are fine. The PCB is on ebay at £40, which is a lot less than the shops or a plumber! You should be able to fit it yourself if you have the manual, otherwise you can get a corgi engineer to come and do it for you.

Matt E, March 2010