Recent content by MJHamilton

We’ve been here for about 5 weeks and I’m still finding things as I work my way through service improvements - now I’ve sorted the Vaillant dual boiler system that was not installed correct things like this are appearing in front of me I guess there is a reason it’s powered off, maybe it’s...

Just moved to a property and on the wall in the boiler room is an LP electronic descaler - it’s turned off but all wired and in place Saw some very old thread on this kind of things from 10+ years ago with inconclusive results - the science is also a little sketchy on this one Is it worth...

Ok figured it out 1. It seems to cascade boilers the extra ones need a VR32 eBus cascade card installed so you can change the id from 0 to something unique 2. Whilst checking the second boiler I found said card installed 3. Whoever installed the boiler left the id on 1 which means it was the...

So again the system has been working perfectly for the last few days - heating and water using both boilers as demand dictates I have noted that I haven’t seen the error with the outside temp sensor during this time and am wondering if this is tripping the bus signal when it occurs causing my...

Here is what the VRC700 and Gateway see - this is the 728, the 730 doesn’t show up at all even though it works Only heat generator 1 - my brain tells me it should also see heat generator 2 I am wondering if I need to adjust the eBus ID wheel on the 730 to give it a unique ID on the eBus --...

yes sir... when the DHW demand comes on the 728 fires up -- this is the older of the 2 boiler and closest to the house on the boiler room external wall so I can see the exhaust when it does - also when sitting idle the 728 shows a tap icon and the 730 a rad icon What I cannot understand is how...

Hello there - long time stalker and found this forum to be a very useful resource - first post so please be gentle :) Some may find this interesting Just moved to a large grade 2 property which has a rather big heating installation with 2 boilers and a DHW tank that is taller than me. It...