The engineers I'm using is through the British Gas Homecare Scheme but as you say I don't think they know what they are doing!!
If I was paying the engineer directly I would definately have gone elsewhere by now.
So... is the flame detetion electrodes different to the ignition electrodes? (I bet you can tell I know nothing about boilers!! :? )
I think I had the ignition circuit replaced last year so the engineer doesn't think it could be this again!!
I know there has been simular topics to this one and it seems the senses of opinion is the problem is the heat exchanger but when I mention this to my gas engineer he says he doesn't think so (but doesn't know what the problem is!!)
My Problem........
It is an intermitent fault that makes it...