Hi
I got back from holiday yesterday to find the pressure on my boiler at 0. I looked in the manual and used the key at the bottom to increase this to 1.5. I did this by turning the key clockwise to open and then the nut to the left to inc pressure then turned both off. However whenever i turn the heating on the pressure starts to creep up! It hit almost 3 last night and I switched it off quick. When its not on the pressure falls again- back to the 2 range. help???

Anna, November 2008

Cheers Ciaron. Tried bleeding last night but nothing happened - no air in any radiator and no drop in pressure! Thanks anyway

Anna, November 2008

Cheers Ciaron. Tried bleeding last night but nothing happened - no air in any radiator and no drop in pressure! Thanks anyway

Anna, November 2008

Anna , first thing is to try and bleed your radiators to get the COLD pressure down from 2 bar to 1 bar. The pressure rising is normal , as you have it on 2 bar when COLD (ie not in use) it is too high , heat creates pressure and this is causing it to rise close to 3 bar. Make sure you have the filling key removed and the filling tap turned off. If after lowering the COLD pressure to 1 bar it rises to 3 bar when in use then the expansion vessel may need attention.

Ciaran, November 2008

Thanks Duane. Could you advise on how to do this or how to find out how?
Best wishes

Anna, November 2008

expansion vessel needs pressurising to 0.5

duane, November 2008