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More than happy to. Yes it's quiet when in operation but so was the Vaillant. The problem lies in adding a boiler to a radiator network that has sludge and metal fragments in it. In that case I'm sure even the Viessman would manifest the same noise issues. That said I'm very happy with my new...

For what its worth I until a few weeks ago had the same boiler model as yourself, a Vaillant 415 ecotec plus open vent. The video you supplied without doubt shows there is alot of gunk & limescale in your boiler heat exchanger - the sound in the background almost certainly is 'kettling', the...

I would appreciate any observations from the members of this excellent forum. I had a Viessman W-100 open vent(non combi) boiler fitted 4 weeks ago. This replaced an older condensing Vaillant open vent boiler which was very quiet. I have noticed that when the boiler fires up, on occasions but...

Mick - sure enough it is the drain off valve that is leaking. I've tightened the nipple nut on this as per my engineers instructions so hopefully that will do the trick. Big relief its not the boiler and yes as per your directive I have duly apologised to it :oops: Once again a big thank you to...

Mick - I've just had a look at the two feed and return pipes which on my model are located at the rear top left of the boiler. The pipes themselves appear ok but there are some brown water stain marks in front of the pipes where they disappear into the boiler housing. Also there are some brown...

Yes point taken! Although its academic as the boiler is out of guarantee anyway. My laymans instinct on this though is that even if I had had it serviced the problem would still have occured. Everybody on this informative site seem to swear by Vaillant boilers and I really do not think that I...

Thanks for that. Actually no I have not had it serviced since installation as I figured I'd skint on the first 3 years and then get it serviced :oops: Is it best do you think to have Vaillant come out or my boiler engineer who fitted it?

I had a Vaillant ecotech plus 415 condensing boiler fitted just over 2 years ago on an open vented system. i.e its not a combi. I noticed yesterday that the oven cloth that is underneath the boiler was damp so I took the mesh cover off the base of the boiler and on the front leading edge of the...

Yes good point but the condensate pipe runs internally into the kitchen sink waste. Moreover the condensate pipe is on the other side of the boiler (rear right looking at the boiler) and as far as I can see there is no leak(unlike Julian Assange) from it

I had a Vaillant ecotech plus 415 condensing boiler fitted just over 2 years ago (yes its just out of its guarantee) on an open vented system. i.e its not a combi. I noticed today that the oven cloth that is underneath the boiler was damp so I took the mesh cover off the base of the boiler and...

Hi, I have read related posts about my problem but hence no solutions so hear goes. I have a fully pumped CH system with an indirect cylinder in the loft piped with 8mm microbore. 7 radiators in all. For the record I have just had a new Vaillant condensing boiler fitted with a replacement...