hi all, the power went off in my apartment for a few hours whilst I was away this weekend and now I'm back I seem to have no hot water. I have run the tap to get it going and also looked at the switches, timer etc ( I don't believe it was on a timer before, just set to all the time ). On the timer bit it said off, managed to get it to say on but not sure if I have done everything I need to, started making a noise when I did this. Will post a photo so it hopefully makes sense. Would appreciate any help, no idea about these things!