Hi Steve thanks for the reply , I didn't drain the radiators just drained it from one the cold and hot water supply behind the sink where I got the connection for this Muslim shower
Best regards
Hi I wonder if someone could help pls
I have superima 40 HE boiler , last night I drained the system to install a Shower ,
I have filled the system back up and now my hot water isn't working but central heating is working , on the boiler from left side first light is showing Amber/red on...