I have a vokera boiler and the pressure dial is up to 3.5 bar in the red!
Tried bleeding rads went down whist heating off, then back up when heating on.
Any help would be very nice and save me the from ear ache from Her Majesty!
have you done any work on the heating system ie new radiator if so sounds like you have too much water in the system whan lying idle and cooled down the pressure should read ,on average 1.0 to 1.5 bar,consult you users guide to confirm
if its higher i would drain some water out and level it out using the loop fill and get to what the users guide says and try switching on again and see what happens
Thanks for response, not had anything newly installed regarding bolier for about 18 months, had new heat exchanger fitted (the boilers about 5 years old not been the best of purchases) I'll look for manual and troubleshoot. Should I release water using main rad draining valve or using the valve used to bleed from top?
I,ll tell you how I get on after going through manual/users guide.
Hi drained water out of main rad, presure dropped to about 1.25 bar.
Didn't put heating all night (lovely wood burning stove, in front room). Returned to boiler later in evening and the presure had risen again to 3.5 bar. would much appreciate words of advise on the solution to my problem.
tried all suggestion and very much appreciated to all who have given advise, bot no joy drained water out disconnected loop but pressure still rises in to red weather heating on or not. Could it be the heat exchangers gone again? I had this replaced about 14 monthjs ago. really frustrating this boiler was claimed (not by me!) to be the rolls royce of boilers, have i really bought a skoda?
Again thanks for all input, great knowledge out there.
Hi peter the plumber,
thanks for advise, the boiler is about 5 an half year old, had servive engineer out to it twice while under warranty and had two repairs on it since, been a bit of a headache. Spent about Â£200 on it last time and sounds like the same thing again, the plumber who fitted it originally, used plastic pipes on the links to the rads (not a big fan) I have noticed that when I drained it the water was very murky, There was an inhibator put in it when last flushed and drained, is it the plastic piping causing this problem? Anyway I am going to replace it with a new one as advised.
Cheers for info.