Hi, I have a worcester greenslave and when i put the heating on, at some stage it seems to knock off the hot water. I have not had the heating on for 2 weeks and the hot water has been staying on "on" with no probs, but 2 days ago i out the heating onto "on" as well and when i got up they had both switched off. I put the water back onto on an its been on all day but tonight its gone off. I makes me think its since i have had the heating on? Does anybody know or heard of a similar problem??