potterton performa 28 leak and 3 bar high pressure?

the problem maybe that with the pressure too high the filling loop may be passing. release some pressure from the central heating system back down to 1 bar, and then check when heating is on if pressure rises over 3 bar, it maybe that you vessel has gone, this can be sorted by fitting a remote vessel near to the boiler, as sometimes the boiler has to be removed off of the wall to replace the old vessel!

jb, c&j plumbing&heating sheffield
May 2009

1 check the filling loop is not letting any water pass through the valve....disconnect it.....free
2 expansion vessel may have lost its pressure....drain primary system and recharge to 1 bar ...refill system £30
3 expansion vessel diaphragm may be split....replace vessel £200
4 plate leaking from primary to secondary....replace plate heat exchanger...£150

brandon
January 2009