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Mend Alpha combi boiler Got Problem Boiler

iv got a problem with my alpha combi boiler?

the pressure kept going up on my alpha combi boiler, the plumber said it was due to a leaky valve on the filling loop, so he replaced both the ptessure gauge and filling loop, since then the pressures dropped and now all my radiators are either fluctuating all the time between hot and luke warm and 3 of them are cold iv tried to bleed them but no air comes out. please can any one help as the plumber seems to be avoiding us

sue wood
February 2007
hi me again, thanks for taking the time to help me. well i actually tried the temperature as high as you said and did all the aothers things as well, it did make it a bit better but then when the heating came on in the morning it was a bit better but still not quite right and its really weird cos the kitchen radiators come on really hot then keep cooling off and my downstairs bedroom one still isnt getting hot so im lost what to do next. thanks sue

sue wood
February 2007
temperature so that it don't switch off after 10mins, sometimes a good long blast off it being on can shift a air lock

hi-spec plumbing
February 2007
hi sorry im a bit thick, by full blast do you mean full temperature or full pressure. thanks sue

sue wood
February 2007
only bleed when heating off. try running heating full blast to push it through. if not close the hot rads to get the water round to cold ones then when there hot open the cold ones slightly till all rads are even temp

hi-spec plumbing
February 2007
no he didnt drain the stystem, if airs trapped how do i get it out because when i try to bleed the radiators only water not air comes out and should it be done while the heating systems on or off ,thanks sue

sue wood
February 2007
you must have trapped air in pipework. did he drain system at all

hi-spec plumbing
February 2007
no they are all open

sue wood
February 2007
he didn't shut any of the valves on the rads did he

hi-spec plumbing
February 2007
thanks for getting back to me, the needles on 1 bar ,in the green zone

sue wood
February 2007
what is the pressure reading

hi-spec plumbing
February 2007

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