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I’ve solved it. Moral of the story, never assume a piece of red tape somebody’s put on a pipe at some point means “flow” o_O And italian boiler diagrams are looking top down, not bottom up. feel really stupid now:LOL:

So, update, I tried changing the auto bypass for a different type one. And setting boiler to 50c. Still kettling even with bypass on max setting. Out of interest, tried taking it out and putting in an ordinary gate valve, open 1/4 turn and the whole system works fine. Don’t understand why the...

thanks, just read through the boiler manual. It says if you turn the dial below 50 degrees, that's "summer mode" apparently for hot water only. They "don't recommend" running the heating at less than 50 degrees for some reason. That's prob why it keeps switching off. The UFH is under engineered...

Hi, I have an old Ferroli Modena combi serving a 1 bed flat. Never any problems. I’ve just installed underfloor heating. It was working fine whilst I had the ufh and a last temporary rad connected up. I’ve just removed the last rad and now I’m having a problem with kettling. The manifold has a...

I guess because it's DC, you'd have to touch both terminals. You don't get the same grounding effect of moisture getting into a live terminal as you would with AC, right?

Hi, I've fitted some LED strips in my bathroom in a ceiling recess and below the sink cabinet. They're 12v and 6 watts per foot, and I have 16ft so about 90watts in total. I've wired them to a remote 150w driver. They're IP65 rated along the length, but obviously either end is exposed copper to...

Hi, I have a solid reinforced concrete ceiling in a room in my flat that has a rough textured finish on it (2.1m x 3.2m). I want to clip a couple t&e cables over it to where i want some surface mounted downlights, and glue 3 sheets of 9.5mm plasterboard over, perhaps using solvent gripfill dabs...