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pressure creeps up to 3bar and outflow pipe drips?

worcester bosh, could it be the heat exchanger needs changing? Do i bite the bullet and get a energy efficient condensing boiler?
kevin Eastwood, February 2008
If rises with heating on then expansion vessel is either flat or faulty if rises when nothing on then filling loop letting by....

dpheating, February 2008
when does it creep up to 3 bar ?
when heating on ?
when all switched off ?

need more info.

hi-spec plumbing & heating, February 2008
link Click here to see other fixes for Worcester Bosch.