"Grumpy owd man" wrote in message
news:52fcddbfd32ca97c42e2689eb3b1cbf3.115311@mygat e.mailgate.org...
Anybody know what the pressure gauge on an Ariston Combi should read?
Son has just bought his first house and the boiler gauge is at 3 bar and
the water constantly drips from the overflow / expansion pipe when
running. Also the fill loop valve appears to be constantly open.
I am guessing the gauge should read between 0.5 and 1.5 bar, but it is
only a guess.
Many thanks

0.5 and 1 bar when cold. If the valve drips even when cold replace it. If
it drips when hot then check the pressure vessel pressure or if the
diaphragm is holed replace it.