Recent content by humiteyubee

  1. H

    Circulation failure in central heating

    Found a couple of air release valves on pipes going up into the loft and back down to feed two bedroom rads. Fiddling with these released air but did not help with the circluation. I also capped the feed from the FE tank and connected the cold feed direct to the FE vent pipe and gave some good...
  2. H

    Circulation failure in central heating

    Tried individual radiators but no noticeable flow from the pump. The only heat I can circulate is by draining three gallons or so from a rad. Could this be an isolator valve stuck closed but allowing some flow when I do my rad drain off? To do the mains flush through a rad as you suggest I...
  3. H

    Circulation failure in central heating

    Have tried a mains flush including a mains flush through the pump bottle valve and off of a couple of rads but again no joy. I think I may have to hire a powerflush unit and attach to the pump valves (having isolated the header tank). Something will work eventually.
  4. H

    Circulation failure in central heating

    Thanks. Have been down that road before but worth another shot. I'm thinking ultimately that I will need a pwerflush
  5. H

    Circulation failure in central heating

    The old pump seemed fine but I put a new Flomasta pump on just in case but no change.
  6. H

    Circulation failure in central heating

    Hi, please help, My ageing Myson Marathon boiler in my open vent system seems to be generating plenty of heat. The boiler inlet and outlets are very hot as is the pump. The two way honeywell valve activates. I have tried a mains flush and a bucket flush at all the rads and all seems fine. I...
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