central heating prolems

[eastie]

hi all
the expansion vessell on my combi boiler has decided to pack in, can anyone tell me if running the heating and keep topping up pressure up as needed (hourly) will cause further dammage to the boiler over any length of time untill i can get someone out to fix.

any advice would be great thanx
eastie

 

[Gasman28]

//www.diynot.com/forums/viewtopic.php?t=6026
Name, model of boiler for example.
Other symptoms that you have etc

 

[eastie]

hi
its a halstead finest gold thats 7 years old, apart form having to top up pressure at filling loop everything else is fine but it does drop regularly

 

[twgas]

introducing fresh water will, over a period of time, cause problems - mainly corrosion.

try draining a radiator then turn it back on but dont bleed it, it will then act as a temp exp vessel and you shouldnt have to keep topping the system up - providing your diagnosis is correct

 

[GPlumb]

Your PRV is likely to give up the ghost also.

 

[Gasman28]

It could also be that you have a leak on the system somewhere. Leaking rad valve? Underfloor?

 

[eastie]

good call mick the idea of draining down a rad seems to be working, how long is it possible to do this for as due to time of year a gasfitter with time to do the job is like rocking horse poo