Hi Dave
As previously stated, there should be absolutely no continuity between the orange and the grey wires when these valves are closed.
So it does seem that you will need to replace the valve that is showing continuity. You have to disconnect the valve completely at the junction box, the new valve comes completely wired to reconnect at the junction box. Just check that the new valve has the same coloured wires, which should be, brown, blue, grey, orange and green for earth.
spraggo
with the lengtht of
As previously stated, there should be absolutely no continuity between the orange and the grey wires when these valves are closed.
So it does seem that you will need to replace the valve that is showing continuity. You have to disconnect the valve completely at the junction box, the new valve comes completely wired to reconnect at the junction box. Just check that the new valve has the same coloured wires, which should be, brown, blue, grey, orange and green for earth.
spraggo
with the lengtht of