Recent content by peekingduck

Thanks, that makes a lot of sense. Weirdly, the off-peak switch seemed to have turned itself off, I just tried to switch it back on and it sparked, so that isn't a good sign, think I'll leave it all alone now.

Thanks for the quick reply. The yellow boxes, motorised valves do switch on when I try and manually turn on the hot water or heating, and they do sound like they are working. However, the heatrae sadia system call light flashes green but the heat goes amber for a minute or so then stops and it...

I live in an apartment, I have the following items as part of what I feel is a complex system. - Heatrae Sadia 900 - PrimaFlow CP5 - Two yellow boxes (pump valves, assuming on and off peak?) - two switches one for off peak and one for boiler - Albion Ultrasteel boiler - Zilmet 10 bar 110-Ultra...