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

Baxi Boiler pressure increasing and overflowing

Discussion in 'Plumbing and Central Heating' started by Calvr1ch1, 2 May 2018.

  1. Calvr1ch1

    Calvr1ch1

    Joined:
    2 May 2018
    Messages:
    2
    Thanks Received:
    0
    Country:
    United Kingdom
    Hi all

    I have a Baxi Duotech Combi 28HE Boiler and have noticed that the pressure is increasing and water is coming out of the overflow. This only seems to happen when the Central Heating is on. It seems to stay at 1 bar if I just use the hot water but as soon as I switch the heating on the pressure starts to rise. Could this be the expansion vessel and do you think I need a new one?

    It’s due a service and I will get a new one for the engineer to fit while he is doing the service if anybody thinks it’s that?

    Thanks in advance
     
  2. heatservice

    heatservice

    Joined:
    8 Apr 2018
    Messages:
    186
    Thanks Received:
    45
    Country:
    United Kingdom
    Sound like your expansion vessel is flat, need to drain your boiler then pump up expansion vessel to .9 bar then refill boiler.
     
    • Thanks Thanks x 1
  3. Sponsored Links
  4. Calvr1ch1

    Calvr1ch1

    Joined:
    2 May 2018
    Messages:
    2
    Thanks Received:
    0
    Country:
    United Kingdom
    Thanks, is this something simple to do or should I leave it to a pro?
     
  5. Jajodu

    Jajodu

    Joined:
    14 Apr 2017
    Messages:
    130
    Thanks Received:
    25
    Country:
    United Kingdom
    It's simple, it's in the FAQ section.
     
    • Thanks Thanks x 1
  6. DIYnot Local

    DIYnot Local

    Joined:
    3 Sep 2019
    Country:
    United Kingdom

    If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

    Select the supplier or trade you require, enter your location to begin your search.


    Are you a trade or supplier? You can create your listing free at DIYnot Local

     
  7. Sponsored Links
Loading...

Share This Page