yartin's latest activity

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    yartin replied to the thread 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...
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    yartin replied to the thread CH Pump Problem.
    I took off the 4 hex keys, what to look for?
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    yartin replied to the thread 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...
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    yartin replied to the thread CH Pump Problem.
    .
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    yartin replied to the thread 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...
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    yartin replied to the thread CH Pump Problem.
    Would an automatic bypass valve do a better job? it's suggested by @Johntheo5 in post #61 above.
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    yartin replied to the thread 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...
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    yartin replied to the thread CH Pump Problem.
    duh
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    yartin reacted to Johntheo5's post in the thread CH Pump Problem with Thanks Thanks.
    That's fixed speed II, 5.2M, probably OK, if you start getting any signs of air in the rads etc, change to fixed speed I, 4.2M, which...
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    yartin replied to the thread CH Pump Problem.
    The installer told me I can have at any speed, I put it II for now as in pic.#
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    yartin reacted to Johntheo5's post in the thread CH Pump Problem with Thanks Thanks.
    Ensure that the pump is NOT running at full speed, a UPS3 is a very powerful pump and will invariably create havoc on a open vented...
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    yartin replied to the thread 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...
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    yartin replied to the thread CH Pump Problem.
    Not only that he turned the bypass valve fully on, luckily I was watching him and he didn't put where it was before; pls see my post #26...
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    yartin replied to the thread CH Pump Problem.
    There was a purpose for this post: I booked a gas safe engineer yesterday morning; he said I need new boiler, new pump and power flush...
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    yartin reacted to fixitflav's post in the thread CH Pump Problem with Thanks Thanks.
    Maybe, but it might be possible to fix the pump, eg by cleaning crud out of the impeller. And I still think it would be easier, and less...
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