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Central heating leak - Printable Version

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Central heating leak - clossie - 04-11-2019

Ok guys and gals I need some help. I obviously have a hole in my central heating somewhere. I'm guessing it's not upstairs as I would expect to see damp ceilings etc, so must assume it is under my wooden floors downstairs. Any ideas how I can find it without lifting my floors all up. it's t n g flooring so if i lift it, I'm likely going to trash it. (not a bill I want just before Xmas).
Have tried a pot or two of sealer through the system, but I keep losing pressure.
:-(


Central heating leak - Fozzy - 04-11-2019

Check simple things first like all the bleed valves on your rads are shut. There should be a system drain somewhere, check that the tap hasnt developed a dribble, as this can bleed the pressure away. There is no surefire way of finding the leak unless you have water somewhere it shouldnt be.


Central heating leak - FirebirdPhil - 04-11-2019

Give Dean a PM - he should be able to help also.


Central heating leak - clossie - 04-11-2019

Cheers chaps will look at this tom. A good curry and plenty of kingfisher cursing through my veins currently. Can't actually feel whether it's cold or not at the moment.


Central heating leak - Sparkystav - 04-11-2019

Try shutting the downstairs rads off one at once may help identify where it is.


Central heating leak - clossie - 05-11-2019

Cheers gord...had read about the pressure vessel online. Got britishgas coming round on the 28th so may try and eek it out till then.


Central heating leak - parthiban - 06-11-2019

I had the same problem not that long ago with a faulty pressure valve - always best to check everything around the boiler first as faults are generally around there.

Interestingly I first had a problem of losing pressure (valve) then shortly after had a problem of too much pressure (faulty filling loop)!


Central heating leak - clossie - 06-11-2019

parthiban I had the same problem not that long ago with a faulty pressure valve - always best to check everything around the boiler first as faults are generally around there.

Interestingly I first had a problem of losing pressure (valve) then shortly after had a problem of too much pressure (faulty filling loop)!

Sounds very familiar to my prob.. Not losing pressure anymore so I'm thinking leak may not actually have been a leak. The prssure however goes up 1.5 to 2 bar from cold to hot. Everything i have read says its should only go up 1/4 to 1/2 bar. However, now also my pump whines and rumbles each time it clicks on and off.. Any ideas peeps?