Ariston euro-combi problems. All advice gratefully recieved

[Andy not handy]

Hi Folks, I'm a 1st time poster so be gentle with me........
I've got an Ariston euro-combi (A21 or 23) which has just packed in. It refuses to ignite. Started playing up about 18months ago and I had a guy come out to have a look and he said it could be either the PCB or the gas valve. At the time I was able to re-light it with the the ignition button (after MANY attempts) but now it is completely kapput. When I press the ignition button it tries to light for 7 seconds and you can see the sparks through the viewing window so surely the PCB isnt faulty???
Nothing has been disturbed or added to the system in the 4 years its been there.
Can anyone with experience of these boilers give me an idea if it is more likely to be the PCB or gas valve before I pay for one only to find it was the other?
Cheers, Andy

 

[Agile]

You clearly had a totally incompetent person to see your boiler as he was unable to diagnose the fault. Never call him again!

Just from what you have said, I know that its almost certain that the gas valve was sticking and now has failed completely.

This is not a DIY tasks as its a gas part and the new valve has to be set up properly if the boiler is going to work correctly. Its not one of the cheapest jobs either, in London we would have to charge a total of £213.

Tony Glazier

 

[Andy not handy]

Cheers Tony. I've been quoted 216.00 which wont be too bad if that cures the problem.
Andy