In the loft and it’s red i believe, I will get some photos asap. The valve is under the bedroom floor so not accessible at the moment, odd place I think
Fully pumped, open vented system I believe, the boiler is only 2 year old. It’s works on a motorised valve for hot water or heating. It maybe not cold weather related but both times it’s happened it’s been when temp is freezing?
We have noticed over the last few weeks since the weather is close to freezing at night that we don’t get hot water, when the weather temp raised last weekend it went back to normal but the last few days it’s stoped again? Never had a problem in the past. Is something on its way to failing? Or...