Recent content by mariaduffy

  1. M

    crumbling TRV heads - whats the odds

    Thanks all who replied esp Scatman for the link. That is in fact the online merchant I was thinking of buying the head from but I have become weary/wary of poor online service. One glimmer of hope with the merchant in question is that it is registered with ISIS (strangely not with IDIS though...
  2. M

    crumbling TRV heads - whats the odds

    Thanks Mike - I am going to try to get exact replacemnts online, would you recommend any merchants online that are reliable/tructworthy that might stock Myson 2-way heads - unfortunately Screwfix don't
  3. M

    crumbling TRV heads - whats the odds

    Hi again guys - thanks again for helping me sort my central heating recently (you know who you are :wink: ) I swear my central heating is jinxed. I have Myson 2 way TRVs fitted to all but one rad (the one in the same room as the stat). This week not one but two TRV heads I noticed were...
  4. M

    Smartfit motorised valves - normal range of motion

    Six days is a lo-o-o-ong time at -1 oC :lol: Thanks for the advice Softus. I think I was worried about the noise level more than the heat of the rads when I said I want heating in safety. I didn't know that the boiler mid-way could be as high as 70 oC, what would MAX be then for a Glow Worm...
  5. M

    Bathroom radiator hot the rest cold ??

    hi singhters - I had a similar problem (only two rads were getting warm) and I drained the whole system then let it refill - so then I had a clean system (I added an inhibitor solution to the F&E tank after refilling) but the same problem remained. I eventually found that one of the valves in...
  6. M

    Smartfit motorised valves - normal range of motion

    Softus - as you can see the original post is a tad old and thanks to the guys on this site I have got to the bottom of the problem with my heating. It was a faulty pump gate valve, which I have replaced after draining the system. Now the rads are piping hot even with the room/stat set to 23oC...
  7. M

    pump favours HW only

    Hi again guys - guess what ? No state of undress was needed. I drained the system and took the pump off. Then I poked the valve gates to see if they were closed when I closed them and open when I opened them fully. One of the valves remianed shut. I this morning changed that valve, employing the...
  8. M

    pump favours HW only

    Its on second floor Tony and I don't know whether to try the 'wet' technique you espouse - which I know is also called the 'snatch' technique or the drain down. I have all day but I quite fancy the snatch technique mainly because I like to take risks 8) - not possessing a white t-shirt and...
  9. M

    pump favours HW only

    Hi Tony et al. I removed the pump head. One at a time I loosened the valves on either side of the pump. The valve that is on the boiler side of the pump was okay. Loosening it produces gushes of water into the pump body. The valve after the pump is (now) stuck in the shut position and the...
  10. M

    pump favours HW only

    Okay Tony thanks - :wink:
  11. M

    pump favours HW only

    Agile :oops: - what can i say? It never occurred to me that the valve may not be working and to try that test but now on reflection another test I did may have incorporated that most basic one. On Wednesday I switched off the two gate valves I put the motorised valves into the manual closed...
  12. M

    pump favours HW only

    Yes Seco I think I understand what you mean. There are a lot of variables that can impinge on performance that will be absent when a pump is tested outside the system ...mmmm I am tempted to buy an exact replica of the pump and replace the head from the new - if it works then the some part of...
  13. M

    pump favours HW only

    I couldn't wait til tomorrow - I opened the pump (head??) after isolating the pump electrically and water(ically). Unfortunately one or both of the gate valves are passing so I'hh have to get those replaced. The installer had installed the pump upside down and the control switch box got wet...
  14. M

    pump favours HW only

    Thanks seco - I'll do that tomorrow
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