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Discuss 2 upstairs radiators need bleeding everyday in the Central Heating Forum area at UKPlumbersForums.co.uk.

  1. Jonathan Reid

    Jonathan Reid New Member

    Open vented system
    2 upstairs radiators need bleeding everyday
    First tried turning pump speed down from 3 to 1, but problem persists.
    Any suggestions would be appreciated.
     
  2. Rob Foster

    Rob Foster Top Contributor!!

    When you bleed the system what colour is the water, especially the water from the good rads not the naughty ones.
    This might indicate wether you have a leak. Is the f & e tank topping itself up ? tie ball up and see if water level drops over a day, few days or week plus. Presume no signs of a water leak . let us know others might have an alternative idea but this will clear some stuff out of the way. Rob Foster aka centralheatking and have you bunged any inhibitor in ...if so which
     
  3. king of pipes

    king of pipes Trusted Plumber GSR Top Contributor!!

    Post a picture of your pump cold feed and vent pipework usually this would be in the airing cupboard, your cold feed could be blocked ? is there water in the feed and expansion tank is it dirty in there maybe best to have a service call from a GSI to find the problem. Kop
     
    • Like Like x 1
  4. Jonathan Reid

    Jonathan Reid New Member

    Many thanks for respective replies.
    Water from good radiators is clear and there is no evidence of leaks anywhere.

    There is water in the f&e tank but it is quite dirty and probably needs a good clean.

    View attachment 20190113_081416.jpg
     
  5. Rob Foster

    Rob Foster Top Contributor!!

    ok, brown water would have inducated fresh water being fed into system regular. you have a filter ok. now tie up the ball valve on f & e tank ...the little one not the big one and see if the water level goes down...use a stick and mark it..check in a day, few days and week . and see whom else has ideas as they wake up. Rob Foster aka centralheatking
     
  6. king of pipes

    king of pipes Trusted Plumber GSR Top Contributor!!

    Can you tell me where the circled pipe goes please you have had some work done on the system is this a problem since then ? What does the lever valve isolate . Kop

    20190113_090636.jpg
     
  7. Jonathan Reid

    Jonathan Reid New Member

    The circled pipes goes into the loft and have traced it going in to the base of the f&e tank. The isolation valve is for shower that was installed 3 years ago.
    The problem with the air locking only started recently.
     
  8. Jonathan Reid

    Jonathan Reid New Member

    Hi Rob, with regards to the movement of water in the f&e tank, if it was free of gunge and blockages would the water level rise when the heating is on and fall when the heating is off, or the other way round?
     
  9. king of pipes

    king of pipes Trusted Plumber GSR Top Contributor!!

    If the cold feed is on the live side of the pump then that's your problem . Kop
     
    • Like Like x 1
  10. Jonathan Reid

    Jonathan Reid New Member

    Hi Kop, its an interesting theory and one which I will pursue further. It looks like the piping has always been configured that way. Does this mean the pump (fitted 2 years ago) is the wrong way round? Why would only 2 radiators be affected?
     
  11. king of pipes

    king of pipes Trusted Plumber GSR Top Contributor!!

    I would say your system is piped wrong see attached diagram circled is the correct position for the cold feed and vent in the neutral zone before the pump . Kop

    20190113_144333.jpg
     
  12. Craig Watson

    Craig Watson GSR Top Contributor!!

    Can you tell us which way the pump is flowing? From the pic it looks like it's pumping upwards but the installer may have flipped the pump head 180°. There will be an arrow on the side of the pump body to show direction of flow.
     
    • Agree Agree x 1
  13. Jonathan Reid

    Jonathan Reid New Member

    Arrows are pointing downwards on the sides of the pump.
     
  14. Rob Foster

    Rob Foster Top Contributor!!

    it might well rise or fall depending on the problem but really should be static. my concern is if it was all dandy why a recent problem, have you been playing with the pump speed ? or bunged any stuff in
    chking
     
    Last edited: Jan 13, 2019
  15. Jonathan Reid

    Jonathan Reid New Member

    Oh no. Rads started to play up so it was suggested to reduce pump speed from 3 to 2. No difference resulted so reduced the speed down to 1. Again no difference. Pump speed remains on 2 as all radiators warm up consistently throughout the house. Its just that 2 of them keep getting air in them.
     
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