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Hi. I've just let some more water into the CH system through my Ariston genus 27 to get the pressure up and let trapped air out of the system. Most of the instructions say a bar of 1-1.5 is ideal. Mine sits (when cold) at 1.2 roughly but when I crank up the system it raises up to about 3.3. I...

Hello all. I have the above in my home and my upstairs radiators have started to fill with air. Or rather, an unventable amount of air has slowly gathered. I've lost the users manual and so don't want to mess around. I'm guessing it's just a matter of letting more water into the system and...