Hi all
I have a Ferroli Compact DOMI F30B and every 24hrs the pressure will drop around 0.5 - 1 bar.
I have replaced the PRV (even though there was only about 30ml of water expelled over a week) and also replaced the automatic air vent.
I have charged the expansion vessel to 1bar and there is no sign of water leaking from the schrader valve and the pressure doesnt significantly rise during boiler operation.
I have check all rads and cannot find the slightest sign of a leak but still the pressure drops.
Any comments would be greatly appreciated?
P.s. when the boiler was originally fitted the filling loop was left constantly open (for 2 years) so the prv was constantly expelling due to the high pressure. Could something else be damaged as a result? Also heating works fine when boiler is operating
I have a Ferroli Compact DOMI F30B and every 24hrs the pressure will drop around 0.5 - 1 bar.
I have replaced the PRV (even though there was only about 30ml of water expelled over a week) and also replaced the automatic air vent.
I have charged the expansion vessel to 1bar and there is no sign of water leaking from the schrader valve and the pressure doesnt significantly rise during boiler operation.
I have check all rads and cannot find the slightest sign of a leak but still the pressure drops.
Any comments would be greatly appreciated?
P.s. when the boiler was originally fitted the filling loop was left constantly open (for 2 years) so the prv was constantly expelling due to the high pressure. Could something else be damaged as a result? Also heating works fine when boiler is operating