Hello, I have a few thermostatic radiator valves on my central heating system (Combi Boiler) which will not stop making the pipes bang unless I turn them on full. What is causing them todo this? The valves are branded as Wickes own, it this the problem are they rubbish? I have bled all the air from the heating system (no much was in there), but this didn't help.
http://www.jims-renovation.co.uk
http://www.jims-renovation.co.uk