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Unsure on my cylinder, but it does have a pocket. All cylinders come with a high limit thermostat, so they just wired the feed through the high limit stat and then into the control centre which makes it safe. The additional stat we just poked into the same socket If you have a plumber and or...

Yes, I have and it's working perfectly! I still have hot water boost, I now see the hot water temperature on the app too The only issue remaining is the thermostat it replaced on the hot water tank was part of a dual thermostat which also housed the hot water limit which is meant to be wired...

Thanks guys. Will talk to the plumber, and of course report back even if success to help any later readers

Okay thanks, so this needs wiring to NTC?

Oh I thought this was correct given the text under the wiring diagram, number 38 It mentions to install the thermostat to clamp CYL. I wonder if it's a difference between a VR10 and some of their other fancy thermostats?

Good shout. I haven't but I could give it a go, it says on the packet what it expects and this would atleast rule out the thermostat itself rather than the controls @Harry Bloomfield do you know if you can check the temperature reading anywhere? I searched all the menus

Hello, Thank you for giving this a read. I have a plumber coming back next week but wondered if anyone had any insight into the issue before then. I have an Ecotec Plus 620 Single zone Unvented hot water cylinder Using two zone valves and a vr66/2 wiring centre Vaillant gateway with sensoroom...

Writing in case this can help others; Load/Weather compensation requires EBUS, with S and Y plan this is difficult as the valves need 230v and the EBUS uses 24V. For Vaillant they have two wiring centers which can do this. VR 65 and VR66/2...

Hello, I'm in an odd situation where by my builder has arranged for a plumber on my behalf as part of his contract which I've paid for. However the plumber has not offered much advice on smart controls. After searching high and low (including asking this forum for advice) I think I am going to...

Hello, I am buying a new entire heating/hot water system for a 1920's 4 bedroom, 2 bathroom house which will also be fitted with solid wall insulation. I have radiators, I don't have underfloor heating and I would like an indirect unvented cylinder for mains pressure hot water for the showers...