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  1. M

    vaillant ecotec plus 937 - no hot water

    this did the trick, thank you all for your help!
  2. M

    vaillant ecotec plus 937 - no hot water

    thank you for your help, I really appreciate it. Both do cross the pipe but perhaps not turning properly. Will have another look.
  3. M

    vaillant ecotec plus 937 - no hot water

    can anyone help with this, if it is straightforward would be great to fix it rather than call someone out. Sorry I am not experienced so any help appreciated.
  4. M

    vaillant ecotec plus 937 - no hot water

    how do I turn the isolation valve back on? where is it?
  5. M

    vaillant ecotec plus 937 - no hot water

    hello I have mixer taps, cold water ok, no water at all when move to hot. I wondered if the grey filling loop handle wasn't closed fully but how can I tell? If it is just turning around what can I do? If I turn it anti-clockwise I start to hear the hiss as if it was filling, and I turn...
  6. M

    vaillant ecotec plus 937 - no hot water

    thanks for your quick reply! no, no hot water at all
  7. M

    vaillant ecotec plus 937 - no hot water

    Hello I have a fairly new (few months) vaillant ecotec plus 937 boiler. Have noticed one radiator was not heating up at the top of the house, checked and had low pressure. Turned off boiler and increased to 1.7 bar using the 2 flow pipes. Sorry my terminology might not be right, hopefully it...
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