I have an ageing - maybe 7 years old Mira event electric shower. Recently, after about 5 minutes of use it cuts out and wont restart for an hour or so. I read on here that there is a thermal cut out on top of the heater and it could be that or the thermal paste has dried out. I would be grateful for any other information, or other ideas about the problem, and an idea of where I can get some thermal paste and a new thermal cut out if that's what I need.
