1. Visiting from the US? Why not try DIYnot.US instead? Click here to continue to DIYnot.US.
    Dismiss Notice

Vaillant EcoTec Plus 831 Not Fill with filling loop

Discussion in 'Plumbing and Central Heating' started by Martin Byford-Rew, 12 Oct 2020.

  1. Martin Byford-Rew

    Martin Byford-Rew

    Joined:
    12 Oct 2020
    Messages:
    3
    Thanks Received:
    0
    Country:
    United Kingdom
    This is an odd one. Our Vaillant EcoTec Plus 831 will not fill when using the filling loop. It used to fill fine using it but now it does not. What is odd is that there is no sound of filling at all. It makes no effort. Water is flowing through the filling loop as I’ve disconnected it and checked so that is not the cause. Has anyone seen this behaviour before and what is the likely reason?
     
  2. picasso

    picasso

    Joined:
    8 Apr 2008
    Messages:
    10,211
    Thanks Received:
    2,498
    Location:
    Essex
    Country:
    United Kingdom
    The plastic of the tap gets rounded off so it feels like the valve is opening but it aint, use a small screwdriver to remove the plastic tap and use a spanner .
     
    • Thanks Thanks x 1
  3. Sponsored Links
  4. Martin Byford-Rew

    Martin Byford-Rew

    Joined:
    12 Oct 2020
    Messages:
    3
    Thanks Received:
    0
    Country:
    United Kingdom
    Thanks, tried that but still the same. No water flowing into the boiler through the filling loop.
     
  5. ianmcd

    ianmcd

    Joined:
    15 Aug 2010
    Messages:
    17,556
    Thanks Received:
    6,747
    Location:
    Lanarkshire
    Country:
    United Kingdom
    post pics of the filling loop, both ends
     
  6. Sponsored Links
  7. Martin Byford-Rew

    Martin Byford-Rew

    Joined:
    12 Oct 2020
    Messages:
    3
    Thanks Received:
    0
    Country:
    United Kingdom
    Not sure how having pictures will assist but please see below. Thank you for your assistance. Just to be clear, water will flow through the filling loop when tested by disconnecting from the boiler in end and turning on at the water mains flow end.
    6CE3D5BB-AE9C-4B4C-8824-1B8E7D59A917.jpeg 57D63526-5ADD-4188-A86E-E60409C6C9D2.jpeg
     
Loading...

Share This Page