cant turn off

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Ok main problem is that i cant adjust the temperature or turn off one radiator on the newest part of the building. I've done some tests with the system i.e. ch off hw on ch off hw off to see if i can isolate the issues in the house. The system is an old gavity system i know this cos the gas man said it is however the gas man has been and bled the rads once before xmas once just after xmas and came to the conclusion that there was a blockage as two rads wouldnt bleed. (however the rads werent on in able to bleed he said) but still no blockage. The old system has a pipe running under the rads whereas the new rads in the extention dont. The new rads in the system go cold downstairs and luke warnm upstairs when ch is turned off. However the old part of the house stays to hot to touch with ch and hw off. All i really want is to be able to vary hot and cold throughout the house as i have a baby on the way and a radiator to paint. I've given up asking for british gas to service as they obviously dont know what they're talking about.
so i cant turn off whole system and the section i can turn off doesnt allow me to turn off individual rads or vary temp in each rad. in all there are three rads on old system and 5 on new system so i cant turn off all new rads to paint one at this time of year/turn off rads to cool baby's room.
 
this could be hard work :shock: :shock:

Can you do a drawing or post some pics, would need to show pipework and rads, boiler and cylinder.
 
ok sorry but im dyslexic so tend to repeat the same thing but in different ways hoping someone can unsderstand me.

I think that on a positive note i have found the issue something that the gas man didnt notice. The old system which controls three radiators seams to respond to the thermostat but not to the controls in the airing cupboard. The new system contains five radiators conected to the airing cupboard system but not the thermostat. Too be honest its very confusing but the jist is i can control the old sytem with the thermostat or the individual radiators. However the thing thats frustrating is that I cant adjust the temperature on the new system only fully on or fully off. So the question is why does the mains switch in the airing cupboard only control the new system with no thermostat. And where the hell is the off button for the old system. It would seam also that the new system has a mind of its own on means turning on in evenings not on all the time and the boost doesnt appear to boost anything. However the new system may heat hot water but when switched off for 24 hrs we still had limited hot water.

Has anyone heard of a sytem like this before?
 
ok so is it a possibility that the old system is overridden by the new one ignoring the thermostat. Cos even though the thermostat was turned down and the rads on old system started to cool when turning on the new system they started to warm up?

Im dead confused by the plumbing of this place. just to give an idea of the way the house was built imagine if you will a two/three bed semi with three rads upstairs with a gas to radiator gravity system, and a back boiler with gas supplied heater downstairs in chimeny breast. Then add an extra bit to the side of the house making the house a third extra in length and add five new rads. the boiler thermostat and control pannels are all sited in the old part of the house.
 
Slow down, we need info not a life story.

Read my first post, can you do a drawing.
 
it would appear old sys was gravity hot water pumped heating, turn on stat old rads work[stat controls pump].without a better/more detailed discription it would be impossible to help.are new controls fitted in the airring cupboard if so what?
 
bripl said:
it would appear old sys was gravity hot water pumped heating, turn on stat old rads work[stat controls pump].without a better/more detailed discription it would be impossible to help.are new controls fitted in the airring cupboard if so what?

Old gravity part is by & by its how the new was connected.

We really need a drawing/pics to even start to sort it.

All the important things like the boiler make and model, any 2/3 port control valves, header tank or sealed system.
 
Sounds to me like its piped in wrong, the new rads are working when you have hot water only selected, the return is probably coming off the return for the hot water, so when the ht water cylinder gets warmer, the nice warm water is whizzing around the new rads.

Reverse Circulation, installed by a simpleton monkey pipe slinger.

I used to be dyslexic but I'm K.O. now (lol) :lol:
 
My cousin is dyslexic, they made him a Major in the army recrutment center, because he kept shooting himself :?

Seriously he's done very well for himself  8)

back to the boiler we need the drawing or pics, otherwise we could be guessing till Christmas.
 
Thanks for the help guys but like i said all my knowledge comes from what the gas man said which was that the system is gravity it has an inlet for cold and an outlet for air in the loft. There is only one thermostat and one control pannel. The control pannel doesnt control old rads only new ones. The thermostat doesnt appear to be any help in controling the temperature in the house at all and doesnt control either sets of rads. The two gas men were also puzzled when they too attempted to fix the system but only because they forgot to ensure all rads were on before bleeding, so they got confused about where air was getting in. I've not noticed since the rads have all been on that there is any water.

The theory by the gas man was that there was a blockage forcing the system to draw on the air pipe instead. However this proved incorrect as no blockage exists. In the old system the rads can be isolated and bypassed so they stay cool, the new rads dont do this and it doesnt matter if you fiddle with the knob it still stays on full. The pannel installed in the cupboard is a british gas model up1, and the pump is situated close by under the floor board (which took british gas man 15 mins to find :lol: )

Before leaving the british gas men basically said "you have no idea how they installed the rads, you could never know thats why we just bleed the lot and not in any particular order." Now I dont know if this is common practice but if i were chasing air around the system i would at least hazzard a guess at what work was done.

Just to clarify there is a really good reason why i can draw a diagram, I have absolutly no idea how the place was plumbed as apparently does the gas men. What I can say is that the gas heater in the chimney breast in front of all the hot water pipes apparently also contains a pannel underneath its shell for the hot water. As this is what was being serviced before any central heating was investigated.

I must admit i'm glad u guys also think a monkey spanner did this job cos there is now way I would have designed a house to have the main radiators of the house linked so they only have an inlet pipe and an outlet pipe.

If anyone needs a basic jpeg of the new and old rads i can email as i have no idea how to give it a url addy.
 

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