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  1. Y

    CH Pump Problem

    The installer strangely said you can run it at any speed like it's up to me, he is gas safe and did sound knows his staff. But still. It was on speed III but someone on here; may be it was you suggested speed II
  2. Y

    CH Pump Problem

    The pump was set at speed II, noticed the operation is like on the motorway speeding at 100mph, ie: hectic lots happening in the airing cupboard. l lowered to Speed I and now it's like cruising at 70mph and now the airing cupboard is calm. Is there disadvantages at the lowest speed? Any thing...
  3. Y

    CH Pump Problem

    I don't have Magnaclean but planning to fit one one soon. I do regular flushes every year but magnaclean will defo improve system.
  4. Y

    CH Pump Problem

    I was not trying to repair the pump, I was asked to dismantle and see what's wrong. Again in pls read previous post #62 above. So I obliged for all to benefit and experience.
  5. Y

    CH Pump Problem

    I dug further, removed the fan and got the bottom of the issue, broken plastic bits from fan which cause the grinding noises on its last day of operation, assume wear and tear of the material after 23 years plus. The whole impeller is free of sludge or curd which is good news. On the plate there...
  6. Y

    CH Pump Problem

    I think I'll repair and save the environment. Have you read the previous pages; was replaced 2 days ago.
  7. Y

    CH Pump Problem

    There is no other UK seller for this part. From ali express; is not going to be the original so inferior and won't last long so may be not worth it.
  8. Y

    CH Pump Problem

    Oh yes, moved to the house in 2002 and was there so 23 years plus and now had to be replaced. The new model UPS3 is much lighter.
  9. Y

    CH Pump Problem

    Impeller kit to replace ...
  10. Y

    CH Pump Problem

    I looked on you tube and there was a vid.
  11. Y

    CH Pump Problem

    I managed to remove the impeller, there is no blockage in the veins BUT the fan is not turning freely meaning the grinding noise I heard last time was working was when internal components got damaged?! photo below, it is repairable with new impeller from Ali express for under £40.
  12. Y

    CH Pump Problem

    I took off the 4 hex keys, what to look for?
  13. Y

    CH Pump Problem

    I emptied the header tank last week, is it a good idea to add 0.5L of the Sentinel x100 to the system? Guess taking off 0.5L or so water from header tank replacing it with the inhibitor will do the job?
  14. Y

    CH Pump Problem

    .
  15. Y

    CH Pump Problem

    I had 8 rads when moved in 2002 and all was fine but after ground floor extension became 12 rads had issues heating the rads in the extension, been balancing them and it's ok, kept same heat only boiler 18KW.
  16. Y

    CH Pump Problem

    Would an automatic bypass valve do a better job? it's suggested by @Johntheo5 in post #61 above.
  17. Y

    CH Pump Problem

    Yes I have kept the old, will dismantle may be in the weekend, will post photos. According the installer, implied it was dead, 240v was getting boiler kicking but nothing happening, will find out hopefully when dismantled.
  18. Y

    CH Pump Problem

    duh
  19. Y

    CH Pump Problem

    The installer told me I can have at any speed, I put it II for now as in pic.#
  20. Y

    CH Pump Problem

    SORTED!!! I called a local plumber today to replace the pump, I have already got the new Grandfus UPS3 15-60. He came turned heating on and straight away said it's the pump. Took him over 2 hours but stayed longer to see boiler firing , £100 very reasonable, couldn't do it myself. BUT After he...
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