when i put the heating on even with the temp dial turned down the boiler doesnt turn off and the pressure gauge rise's a plumber came out and pumped up the pressure vessel but it hasnt solved the problem i would like some advise before i call some one else out so i dont get the wool pulled over my eyes thanks
from cold the pressure should be 1-1.5 bar this will rise to approx. 2 bar when the system is hot the boiler should be on for 20-30 mins. depending on rads etc then come on for short periods you will have to be a little bit specific regarding your problem if it's not doing this !
brian
March 2011
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