Unvented system with 2.5 bar pressure when cold

[Brendak]

Hi
I have an unvented system (Santon cylinder) & noticed that the pressure when cold is over 2.5 bar. The hot water is also extremely hot. Are the 2 related & can I reduce the pressure by bleeding the radiators?
Any advice appreciated.

 

[aggis]

Get a plumber with a G3 certificate to check it out, don;t mess with it.

 

[smillsey]

either your guage is knackered or it is overpressurised, could of been over filled, or valve is letting by at filling loop...

call a G3 qualified heating engineer

 

[smillsey]

if its been left on that is....

Or could be a number of other things!

 

[hot stuff]

possibly expansion vessel faulty

 

[stevetheplumber]

sounds like the gauge is on the cylinder rather than the heating circuits if so thats fine