Hi,
I am having real trouble with my boiler. I turn it on and after a short while it begins to make banging noises while running the hot tap then after around 10s the boiler trips. the boiler also keeps loosing pressure after putting 1.5 bar of pressure in it will loose this after around 5mins.
Cheers Tom

Thomas J Miller, August 2011

if water coming out from pressure out let which is out side than change that valve also still make bang noise
than expansion vessel need pump air to 2.5 to 3 pl

lal, August 2011