Thanks for your replies guy - much appreciated. Yes it is the 105E instant which I have.
the divertor needle was sticking - covered in gundge - cleaned it and now its move freely but made no difference. i noticed that the internal spring was pretty worn - that probably doesnt help!!!!
what baffles me is that even when the differential switch is disconnected from the valve, turning the hot water on still doesnt move the needle - is this normal???
Maybe I'll just buy a new differential switch and a new divertor valve and be done with it. cant see what else it could be???
the divertor needle was sticking - covered in gundge - cleaned it and now its move freely but made no difference. i noticed that the internal spring was pretty worn - that probably doesnt help!!!!
what baffles me is that even when the differential switch is disconnected from the valve, turning the hot water on still doesnt move the needle - is this normal???
Maybe I'll just buy a new differential switch and a new divertor valve and be done with it. cant see what else it could be???