vokera linea 35,pressure goes to3 bar when heating is on?
iff heating on goes round to 3 bar and lets out water outside over flow,also when runing hot tap only warm 40 degrees,have to have tap open slightley to get hot water,boiler only 3 yrs old,
Expansion vessel problem, may need repressurising or replacing. Drain system and re pressurise with a foot pump to about 1 bar ( installation/service instructions will confirm exact level) Could also be too big a system for expansion vessel, usually good for 7 or 8 rads if you have more may need an additional expansion vessel.
Peter
January 2009
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