ThankyouThat's good, not being gas safe I`ll let others advise if they can.
It`s in the heading Darren, 24ci.Hi Snapper, 2 possible scenarios.
A, The PRV is letting by & needs replacing. Or
B, The heat exchanger has split and needs replacing.
What model is the boiler?
D'oh. Blurry eyed, half asleep just woken up when I read the thread. Lol.It`s in the heading Darren, 24ci.
Yes get a GSR in first to make sure it is not just something simple. But it does sound like the hex has gone.It’s running all the time even when the boiler is off. Does it sound like I’ll have to get someone in to look at it?