Search results

Hi there all. I have a problem with my boiler and wondered if you could help. I have a Vaillant 242 and it works fine and heats the place well for about 2 hours. When the boiler stops firing (presumably because it has decided the return is hot enough) it then seems to struggle when it starts...

Tony, thanks for the swift reply and apologies. I posted here because this post: http://www.diynot.com/forums/viewtopic.php?p=1737376 which was what had guided me last night! Can you even tell me what I would expect to see if the hose connections to the diaphragm pump were the wrong way round...

I have had a few problems with our vaillant 242 and also some success but i'm a bit stuck now and just could do with some input - I would be very grateful. Details: - Boiler has worked fine with no noticeable problems until about 3 weeks ago. It stopped igniting suddenly. Followed the flow...