We may have found other answers which could help you.
Success
Message
If water pressure needle ( blue ) is hiher than 1.5?
How can i resolve intermittent hot water?
radiators not getting hot?
fan is idle when it is supposed to be slow running?
how can i fix my heating?
Intermittent hot water problem?
pressure to high and leak on the outside pipe?
no hot water for bath?
hot water not working?
How to find pressure switch?
Changing expanson Vessel?
diy plumbing?