not heating

hey lads working in a house with a new extension. in the extension is a small 21*21 rad and a 21*77 rad both doubles. they have been takin off a bathroom rad which is piped off 3/4 pipe. prob is they not heating! when all other rads are off they will heat but are kinda slow. big rad was takin...

I got a new Primaflow circulation pump installed in my home today. The heating is working fine but for some reason the water is not heating. Can anyone help me out with an explanation please?

I recently had a burst water pipe which meant that my system was completely drained, once the water pipe was replaced and bled i seemed to get central heating but my hot water didn't seem to be working anymore???? My pipes seem to be humming and creaking even more than normal, however a...

I have been round to a customers house and they have an indirect hot water system, the hot water gets hot, and they say when the heating is on the upstairs get hot but downstairs do not. They had a new pump installed about 1-2 years ago, I think it might be the mid position valve, if not maybe...

:confused:I wonder if anyone can advise me on a problem that has just started to occur with my radiators , all of a sudden the other day the downstairs radiators suddenly stopped heating , the upstairs ones appear to heating fine but the downstairs ones are not , i have tried bleeding them ...

Recently fitted towel warmer to a bathroom i refurbed now the heating system has always worked fine (so the customer says) all i did to fit the rad is turn all the valves off on all rads, then removed the existing bathroom one, then opened valves to the bathroom one to drain the water in the...