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Recent content by RJD68

  1. R

    UFH slight weep from the manifold....simple nip up or a heating engineer?

    Hi all. Got a Polypipe UFH manifold (8 years old) and having turned off the UFH a few weeks ago I decided to turn it back on again as the mornings and evenings are just too cold again. Noticed a slight weep in the flow part of the manifold (see pictures - second one is a close up of the joint)...
  2. 7D9523B9-9532-4FE2-9C61-566BDB5EF731.jpeg

    7D9523B9-9532-4FE2-9C61-566BDB5EF731.jpeg

  3. DF10192D-3978-4C75-BADF-61E67FE98B43.jpeg

    DF10192D-3978-4C75-BADF-61E67FE98B43.jpeg

  4. R

    LOFT CONVERSION done BUT 2 out of 3 loft rads not heating

    I agree Ric, the pump is doing just fine and will only be changed as a last resort. The house bigger than average I’d say: kitchen/diner UFH (60m2 area) + 18 rads (which includes the 3 in loft) so well within the 37kw capacity of the Vaillant. He’s balanced rads to approx a 12-15C drop. Today...
  5. R

    LOFT CONVERSION done BUT 2 out of 3 loft rads not heating

    Hi Ric. Installer here now trying to work it out. I agree that the issue is air. As far as the pipe work design is concerned there is an area where the 15mm loft pipework goes over a steel (despite me thinking earlier that we didn’t have that issue) but it’s more a rise and not an abrupt ‘U’ and...
  6. R

    LOFT CONVERSION done BUT 2 out of 3 loft rads not heating

    Kop it seems we posted at the same time. We have a Vaillant EcoTec 637 combi boiler
  7. R

    LOFT CONVERSION done BUT 2 out of 3 loft rads not heating

    Hi again Ric2013. As the 2 offending/cold loft rads have NO air in them (only water comes out when I bleed them) I must assume the air lock is somewhere between the 1st rad on the loft circuit (as this has always worked) and the two others. The pic I posted earlier showing the 90degree elbows...
  8. R

    LOFT CONVERSION done BUT 2 out of 3 loft rads not heating

    Thanks kop, I’ll show this valve to the installer when he comes on Monday.
  9. R

    LOFT CONVERSION done BUT 2 out of 3 loft rads not heating

    2 weeks on from the balancing and the same 2 rads in the loft are cold again. So balancing didn’t do it. Any suggestions as to the best course of action, is it: a) better to try to remove the airlock one more time. Is it reasonable to expect air to lock a few times before all the it’s all...
  10. R

    LOFT CONVERSION done BUT 2 out of 3 loft rads not heating

    Had the installer back yesterday. He balanced the whole system from ground floor to loft and that has solved the problem. It wasn't another airlock after all which was a relief. Thanks all for helping sort this.
  11. R

    LOFT CONVERSION done BUT 2 out of 3 loft rads not heating

    Thats very helpful. Much appreciated Ric2013
  12. R

    LOFT CONVERSION done BUT 2 out of 3 loft rads not heating

    Thanks Justlead1, that sounds very much like what the plumber did the first time the 2 loft rads stopped working. I'm just surprised that so much air can find itself back into the system such that 2 rads go cold again after just 7 days or so. Maybe that's to be expected?? If the plumber can't...
  13. R

    LOFT CONVERSION done BUT 2 out of 3 loft rads not heating

    I'm pretty sure the installer hasn't done that so thanks for that advice, that's where I think I'll start before considering cutting in air valves etc. Thanks Matchless.plumb
  14. R

    LOFT CONVERSION done BUT 2 out of 3 loft rads not heating

    Thanks all. Looking at the photo (as opposed to what the installer told me about the pipes going over the steels) it's clear that they come up from the first floor then via a 90 degree bend go under the loft floorboards and not over the steels. So, can air build up with this type of pipe...
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