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Sorted. It turns out the non-return valve wasn't working. New one fitted in about 15 minutes and pressure back to normal.

Okay, so my bro came over, went to the boiler and... the pressure was 2.4 and the needle on the gauge was at midway on the grey. I was gobsmacked to say the least. We got up today to a freezing cold house, no hot water for the kids to get ready for school or my wife to get ready for work, and...

I know :) . But as I said, my brother didn't install this system. I don't like getting family to do big jobs for me, too many rows and fallouts when things go bad. I wanted to see if it was something simple that I could fix myself without having to get someone to have a look. Hey, it is a...

Something is definitely wrong and if we do have a leak, it's going to be somewhere difficult to find. Luckily I come from a family with a history of plumbers and heating engineers but my brother is the only one with gas certification. He's going to take a run over sometime today to have a look...

Sorry about replying so late. I checked the pressure and it's reading 0.3 bar and this doesn't change when the priming valve is turned on. But, strangely, when I turn the valve off at the water side first and disconnect the hose, no water comes out. So where is the water going?

Yeah that's what I thought at first. But we would have clear evidence of water damage if that were the case as it would have to be a pretty big leak to reduce the pressure to zero and keep it there while it was being repressurised. I'll do that and let you know what it says. My brother, who...

We had a problem yesterday where we had no heating or hot water, although we had around 153m2 of gas on the meter. When I checked the boiler, a 2 and a half year old Vaillant ecotec pro 28, the red light was on and the pressure gauge was right at the bottom. So I connected the priming hose and...