any ideas? can lower pressure down manually and it also blows off automaticaly at 3.0 bar heating not working 100percent. Filling loop disconnected have also changed both diaphrams to diverter valve assembly and cleaned thrust plates. Could it be the pcb board or the diverter valve operating head

Mick fells, December 2006

replaced pcb board and 3 way motor valve today still the same. fully drained down expanssion vessel pumped it up to 3/4 bar as it had no air in it. refilled system still the same,3 radiators not working now. boiler working better now but still pressure gets to 3 bar, takes 1 hour instead of 4 mins to get to 3 bar
now have no hair, any other ideas or suggestions thanks

mick fells, December 2006

i would say your expanssion vessel may need charging back up

hi-spec plumbing, December 2006

With only the hot water on it reaches 2.5 bar with pre heat on full and then the boiler shuts off. if I put the heating and the hot water on it goes up to 3 bar

mick fells, December 2006

is it at 3bar all the time or only when heating kicks in it gos up to 3 bar

hi-spec plumbing, December 2006