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Recent content by mr. shr

  1. M

    Vaillant ecoTec 831 Plus and Nest - Flow Temperature

    I think it's plugged into the front of the boiler? Can I ask why you changed to the Nest system?
  2. M

    Vaillant ecoTec 831 Plus and Nest - Flow Temperature

    Hmm I can't really think of anything else to suggest. Seems like you'd already covered all the things I know. Is yours a systerm or combi? I don't think d.5 is an adjustable setting. I think it's a read out of the flow temp the boiler is trying to achieve: if you have a smart contoller the...
  3. M

    Vaillant ecoTec 831 Plus and Nest - Flow Temperature

    Isn't the maximum 30 or 31 for your boiler?
  4. M

    Vaillant ecoTec 831 Plus and Nest - Flow Temperature

    From my (limited) understanding, your old thermostat would simply have worked as an on/off switch. I believe the Nest operates in the same way (i.e. on/off). The OP had a Vaillant weather compensation device fitted initially and forgot to remove the old receiver so boiler flow temp was still...
  5. M

    Vaillant ecoTec 831 Plus and Nest - Flow Temperature

    Have you recently had Nest installed? I assume boiler flow temp was a lot higher with your previous setup?
  6. M

    Vaillant ecoTec 831 Plus and Nest - Flow Temperature

    What is the rotary dial set to on the front of your boiler? I think you just need to turn yours up.
  7. M

    Vaillant ecoTec 831 Plus and Nest - Flow Temperature

    Yes this is my understanding of the Nest system hence why I wondered why the OP removed a modulating system and replaced it with an on/off setup as offered by Nest. Was it to have remote access via smartphone?
  8. M

    Vaillant ecoTec 831 Plus and Nest - Flow Temperature

    What was your reason for changing to the Nest system? Do you find it better than your original setup and how?
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