checked the board all ok, it registers a tap being turned on so the flow meter must be working.....i guess thats what you meant by flow turbine.
Any more ideas??
Hi, I have a buderus 500 combi boiler.
The problem is if you have a shower and then someone else tries to have one 10 mins later the boiler will not fire up.
sometimes it attempts to then shuts down a few seconds later. The central heating will also not fire up the system when in this fault...