hi there, sorry its an FF240 slimline, its an open vented system.
coincidentally i just backed that screw off earlier hoping some air would rush out although water started running out immediately so i tightened it up again, would water not constantly flow with the screw removed?
Hi hope you can help, there seems to be a few questions and answers surounding airlocks on this boiler although im not expreriencing problems with the boiler cutting out, only this annoying sound.
i recently had a rad valve changed downstairs by a plumber that led to the bleeding of the rads...