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  1. I

    Potterton Puma 80, CH slow and only lukewarm

    i had the same problem under the boiler on the flow and return pipes there is a pipe that goes between them with a gate valve on turn valve completely off and try heating to see if this is your problem it worked for me as it was sending water straight back to the boiler without much getting to...
  2. I

    RAD HOT AT TOP, BOTTOM ITS NOT

    if rads are hot at top but cold at bottom turn locksheild valves completely off and turn back on half a turn turn. what is happening is water is going in and straight out again without heating all rad up so closing return down restricts it going out and balances rad :D
  3. I

    HW ok but CH not!

    if you bleed rads when heating is on you draw air in your system always do it when heating is off. :D
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