ecotec plus

  1. C

    Vaillant ecoTEC 428 plus. (VUGB286/2-OH)

    Hello, Firstly please excuse my lack of knowledge with heating systems, ill Try and explain what I’m Trying to achieve the best I can. As per the description I have a 428 heat only boiler recently converted from open vent to a sealed system. This is operated by a Yplan and Hive controls. The...
  2. R

    Is my Vaillant PCB dying?

    My Vaillant ecoTEC plus 618 display is always illuminated - previously it would go dark until I turned one of the temperature setting knobs. Not only that but now the temperature shown is flickering irregularly around the preset temperature (70°) and also flashing back to the outgoing...
  3. C

    Ecotec plus boiler with VR66 gives code s97

    I have mounted a VR66 wiring centre in dual zone (switch in position 0) with two VRT350 thermostats. The heater is an Vaillant Ecotec Plus with combiboiler from october 2020. And I must say it works very well when one or both thermostats ask for heat. When there is no demand for heat the boiler...
Back
Top