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

Why is downstairs radiator not working?

Discussion in 'Plumbing and Central Heating' started by veedee, 6 Oct 2020.

  1. veedee

    veedee

    Joined:
    27 Sep 2011
    Messages:
    506
    Thanks Received:
    13
    Country:
    United Kingdom
    New boiler was installed about 6 months.

    Following installation, the boiler has been mainly switched off due to renovation etc

    During the renovation all the rads were removed. Then refitted and inhibitor added to system

    All the rads upstairs work, but the single one downstairs does not

    I've bled the system, shut off the upstairs rads (lockshield and trvs) to force heat downstairs. Still nothing.

    What else could it be? The pump?

    If it helps, my boiler is outside
     

    Attached Files:

  2. Sponsored Links
  3. ericmark

    ericmark

    Joined:
    27 Jan 2008
    Messages:
    18,576
    Thanks Received:
    1,743
    Location:
    Llanfair Caereinion, Nr Welshpool
    Country:
    United Kingdom
    Have you shut off lock shield and opened TRV and bleed then open lock shield and close TRV and bleed so both supply and return both bleed?
     
    • Thanks Thanks x 1
  4. oldbuffer

    oldbuffer

    Joined:
    6 May 2010
    Messages:
    1,432
    Thanks Received:
    535
    Location:
    London
    Country:
    United Kingdom
    If the downstairs one is fed by dropped pipes from above, radiator could be airlocked. If so, there should be bleed points on each of flow and return drops, use these to get rid of the air.
     
    • Thanks Thanks x 1
  5. veedee

    veedee

    Joined:
    27 Sep 2011
    Messages:
    506
    Thanks Received:
    13
    Country:
    United Kingdom
    Tried this and had no joy unfortunately

    I'm hoping that this solves the issue

    Will give this a shot tomorrow. Thanks
     
  6. terryplumb

    terryplumb

    Joined:
    8 May 2017
    Messages:
    6,148
    Thanks Received:
    1,273
    Country:
    United Kingdom
    Is the problem rad the ONLY radiator
    Downstairs ,or do you mean it's the only one downstairs that doesn't heat and the others do ?
    Was it working before refurb??
     
  7. veedee

    veedee

    Joined:
    27 Sep 2011
    Messages:
    506
    Thanks Received:
    13
    Country:
    United Kingdom
    There is one radiator downstairs within the property

    This downstairs radiator is the problem rad as it does not heat up at all

    All of the upstairs rads (two in total) are fully operational

    I'm 90% confident that it worked prior to the renovation.
     
  8. terryplumb

    terryplumb

    Joined:
    8 May 2017
    Messages:
    6,148
    Thanks Received:
    1,273
    Country:
    United Kingdom
    Check the pump isn't siezed up ,due to lack of activity.
     
    • Thanks Thanks x 1
  9. veedee

    veedee

    Joined:
    27 Sep 2011
    Messages:
    506
    Thanks Received:
    13
    Country:
    United Kingdom
    I felt the pump and i could feel a faint vibration. I am not really sure whether that is normal or not

    The pump i have has a screw inside. I have a pic of this in my opening post

    I stuck a screwdriver in there and gave it turn and push. is there anything else i can do?
     
  10. Sponsored Links
  11. veedee

    veedee

    Joined:
    27 Sep 2011
    Messages:
    506
    Thanks Received:
    13
    Country:
    United Kingdom
    My radiator has a bleed valve on one end and a plug on the other end

    However, to try amd remove air i followed this guys video and the rad is still not working



    I then drained down the system and one pipe got warm but the other is ice cold.

    Does anyone have any suggestions?
     

    Attached Files:

  12. CBW

    CBW

    Joined:
    26 Sep 2019
    Messages:
    8,960
    Thanks Received:
    2,390
    Location:
    North
    Country:
    United Kingdom
    That’s an erp pump, don’t think you can get to those screws. X2 flow pipes or return pipes plumbed in by accident?
     
  13. CBW

    CBW

    Joined:
    26 Sep 2019
    Messages:
    8,960
    Thanks Received:
    2,390
    Location:
    North
    Country:
    United Kingdom
    Post photo of affected radiator?
     
  14. veedee

    veedee

    Joined:
    27 Sep 2011
    Messages:
    506
    Thanks Received:
    13
    Country:
    United Kingdom
    Just uploaded pics in previous post
     
  15. terryplumb

    terryplumb

    Joined:
    8 May 2017
    Messages:
    6,148
    Thanks Received:
    1,273
    Country:
    United Kingdom
    Does the problem rad have a thermostatic radiator valve ( TRV) ?
    It may be stuck closed.
     
  16. veedee

    veedee

    Joined:
    27 Sep 2011
    Messages:
    506
    Thanks Received:
    13
    Country:
    United Kingdom
    I don't think that it is that

    As the trv is new. I removed the head to make sure that it is not stuck
     

    Attached Files:

  17. terryplumb

    terryplumb

    Joined:
    8 May 2017
    Messages:
    6,148
    Thanks Received:
    1,273
    Country:
    United Kingdom
    I see in pics that you do have a TRV ,press down on the pin to see if it moves freely up and down.
     
Loading...

Share This Page