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All locksheilds checked, pump also checked to see if pumping over. :)

I think when we change the boiler he wants to do away with all the pipework in the screed as hes concerned about them leaking, so that will probably mean the blockage will be taken out of the equation :) but I understand what your saying, thanks for giving me proper replies instead of just...

The e type does have two tappings, good memory , makes sense to do the pipework, I'll see what the customer wants to do, the thing is he wants the boiler changed next year so it does seem a lot of money being spent to fix a system for a few months but there we are.

I'm reasonably sure it is a two pipe system if it was a one pipe system I would've thought that both tails would get hot to the rads with a 1 pipe and that the one pipe would get hot eventually? one of the first things I did was take the heads off the trv and checked they weren't jammed shut...

note: gravity hot water f/r very little difference once the cylinder is up to temp.

Hi gas wizzard thanks for your post, gravity hot water is fine. The temp difference between the flow and return is huge, you can tell its not circulating as the flow is extremely hot and the return is at very best luke warm so I beleive as you say that there is a blockage some where, but to get...

Hi steve, ye Ive checked for it there

feed and vent capped, the instructions told me to change direction of flow frequently to agitate the sludge, feed and vent come into the gravity primaries in a/c. Ideally idve put gate valves on the primaries to stop the water circulating around the h/w side but the pipes are inaccessible, to...

Hi steve, no n/r valve fitted that I can see, the pipes come out of the boiler, down and then set into the screed so I assume there wont be one in the floor but to find out if there is it means taking up the timber floors up and digging the screed up a bit to expose the pipe work, again this...

Hi Ollie, thanks for the reply. So your all talking about me now? will be interesting to see! once I'm in this cc i'll be sure to post this problem and all the issues some people have with me and my clueless ways, Its all a learning curve, never stop learning in this job, sometimes though you...

When it was flushed, I followed the instructions and had the boiler on to heat the water to roughly 50oc so the chemicals work best. I found that as i did each rad they all got nice and hot, it did seem to clear some muck out of the system, then while all the rads were open the whole system was...

Hi Alex, Ive checked the pump valves and they are clear. There were two gate valves under a kitchen cupboard next to the boiler on the f/r, I've taken them out. The feed and vent go into the gravity primaries in the a/c on the cylinder upstairs. There is no feed and vent on the c/h that I...

ben your replies aren't abusive just unhelpful and disrespectful, sad really. Who taught you? or were you born with a intricate knowledge of central heating systems? it just comes naturally to you does it?

You obviously don't know what the problem is either as you would've given me some constructive criticism by now, go and check again ben as I am there http://www.gassaferegister.co.uk/registersearch/checkengineer.aspx?id=3048323&returnurl=http://www.gassaferegister.co.uk/Default.aspx...

Sorry, wrong number, licence number. 3048323

ben, business reg 533769 engineer no. 2834331. did you put the number in both boxes when checking up on me on the gas safe site? thought an all knowing so and so like you would've thought of that? basic, ben basic.

ben and ollie, 1) Abusive or unhelpful posts are not welcome. This is a friendly site and we ask that everyone is treated with respect! Abusive or unhelpful posts are not welcome on this site and are always removed! Keep it civil! Read more...

I also made the chap aware before beginning that this type of system is not what I'm used to working with and that I'd try everything I can think of, he is grateful that I'm continuing to try and sort it and that I havent run off with his money.

Hi ollie, did I say I charged £1000 so far? no, he has spent over £1000 getting valves changed on the rads then changing the rads, then changing the f+e tank etc. why any of that would help is beyond me but he has had 4 different plumbers there before me and I'm the only one still trying to...