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It actually doesnt. Its a viessman vitodens 100-w, the new range, i cant find any way to see the pressure setting on my boiler. The manual refers to seeing it on the main screen by continuing pressing the 3lines, but the button combinations don't work and do t display anything other than the...

Thanks guys. As its easter monday, i guess ill call homeserve or wait til tomorrow.

released some pressure from the red vessel with the knob on the pipe as it was well over the red line while cold Also turned the black level back on and its constantly dripping into the tundish again (thanks oldbutnotdead) guess one of the valves has gone? All the other red PRVs are turnable...

The red vessel is 1.7 bar when cold Is there a way to release pressure from the red vessel? It drips when boiler is hot and cold

Some more photos with colour coding for pipework alignment The black stop valve lever in the bottom right is what i turned off to stop the dripping.

It is fitted below a red expansion tank, and also connected to the overflow of the hot water cylinder. The water running through it was cold. Its a copper pipe which sticks out the side of the house at ankle level and drains directly onto (not into) the ground. There is nothing on the other...

I have recently had a new boiler fitted, viessman vitodens 100w, and since then my external overflow has been constantly dripping, i dont know if its due to the boiler change or just a coincidence. While lying in bed last night i heard a constant rush of water from the airing cupboard, and when...