Hi,
I have a closed CH system, with an expansion tank.
Boiler is a Suprima 60, expansion tank is a red bulbous thing with a pressure relief valve on top that has a gauge that red lines at 3.0bar.
Earlier today I noticed pressure was shown as .60 on a luke warm system that was just starting up. I topped it up to 1.0bar and left it. Now its hot the pressure has risen to 3.0bar, so its venting water via the overflow.
From memory it used to go to about 2 bar when hot.
Any idea what's wrong please....thanks
I have a closed CH system, with an expansion tank.
Boiler is a Suprima 60, expansion tank is a red bulbous thing with a pressure relief valve on top that has a gauge that red lines at 3.0bar.
Earlier today I noticed pressure was shown as .60 on a luke warm system that was just starting up. I topped it up to 1.0bar and left it. Now its hot the pressure has risen to 3.0bar, so its venting water via the overflow.
From memory it used to go to about 2 bar when hot.
Any idea what's wrong please....thanks