Recent content by ukrobo

  1. U

    Random boiler activity noises - Vaillant ecoTec pro 28

    Just noticed that heating mode on my boiler is constantly on. I.e. the radiator/"gate" icon is constantly displayed. Would that have anything to do with it? Again, the noises stop when i activate summer mode.
  2. U

    Random boiler activity noises - Vaillant ecoTec pro 28

    Also just to add one last thing...when I put the central heating into summer mode...the noises stop and the temp. on the combo display eventually returns to room temperature instead of hanging around the 70s.
  3. U

    Random boiler activity noises - Vaillant ecoTec pro 28

    What is the purpose of the 24 volt link and why do you think removing it is the answer? I could search for more details on the forum but I would appreciate a little context as I'm sure you know a hell of a lot more about this than I will ever do :) Appreciate the advice
  4. U

    Random boiler activity noises - Vaillant ecoTec pro 28

    It's S.00 which cross referencing with the manual says "Heating, no heat demand"
  5. U

    Random boiler activity noises - Vaillant ecoTec pro 28

    The boiler only fires its burner when the programmer is requesting heat. It just makes an activity type purring sound which is perhaps 50% less than the noise a burner would make. This is happened since the boiler was installed. I previously talked to the installer about why a cylinder was...
  6. U

    Random boiler activity noises - Vaillant ecoTec pro 28

    Hi there, Hoping someone could help with a question I have. I have a new (January) Vaillant ecoTec pro 28 which is controlled via a Centaurplus 21 series 2 programmer. The boiler and programmer feed a cylinder upstairs to fulfil all of my taps hot water demands including shower and...
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