When i bleed water out of nearest rad the pressure gauge shows .5 bar even when water stops running. maybe the gauge is inaccurate.
Pumped EV to 10 psi, showing 1 bar on gauge.
As i already had 1 bar showing I did not open filler. Pressure rose by .2 bar in 5 mins.
I fear you may be correct...
Thanks John but the filling loop has 2 isolation taps, both closed.
Also the pressure only increases when the heating is on. Have tried leaving it off for a couple of days & no pressure increase.
My 26-32 Boiler is overpressuring on the heating circuit.
About 3-4 hours use & the pressure gauge hits the limit, if left if will leak from underneath the boiler.
At present i am draining water from the nearest radiator to relieve pressure.
The servicing instructions have a fault finding...