Recent content by robsinglehurst

Quite a bit of time has passed since I originally posted, but after finding a very good description of the internal wiring / workings of the valve here I have fitted a on-delay timer relay between the call for heat terminal on the cylinder stat and the input to the boiler (boiler controls pump...

Thanks, Is it likely to be a wiring fault or the valve? I think it may have done this from new but I didn't really know any better as I hadn't had a fully pumped system before. Should the Orange wire coming out of the valve go live once the valve has completed it's travel? Cheers,

The entire system is about 18 months old. System boiler is Glowworm 24hxi (this controls the pump itself) with a Centaurplus C27 programmer. Everything works fine apart from getting one loud bang on the pipework on the Port A (radiator circuit connection) when there is demand for HW when the...