Recent content by PeteG1

Sorry for the delay in replying, I've had problems with the website. Motorised valves were open when system was draining and refilling. I tried HW by itself and presumed boiler fired up as the flow pipe heated up but the return pipe remained cold; didn't even get warm.

I have a fully pumped central heating and domestic hot water system operated by separate motorised valves. The central heating works ok but the domestic hot water pipes are not heating up. The bolier is ok; the control programmer is ok, the cylinder thermostat is ok; the motorised valve is...