The old motorised valve was faulty and the pump was noisy so i replaced them with another pump and the above motorised valve.I did n't connect them up electrically because i was going on holiday.Now i'm back i have wired them both up to each of the two leads from a Danfoss Randall 102 controller. The pump works fine when the water heating or water only is switched on,However the motorised valve is dead.What i can't understand is that there is a grey and an orange wire from the motorised valve flex which is now connected to nothing.Where do these wires connect to. Anyone any ideas?