i have a creda florida plus shower. i brought it about 4 years ago but it has only been installed about 7 months. the problem im having is that the over heat light has come on and i now dont have hot water coming through. i have been online and read the creda manual which tells me it should reset after it has cooled down but each time i put the shower back on the dreaded light is on again.......! help anyone? dawn x