I had the same fault as you guys. The shower was in warranty to contacted Aqualisa and engineer came out. The guy explained that it was a simple problem with water and moisture getting into the power switch area which causes a short curcuit.
This was about 2 years ago now but unfortunately it has developed another fault. There is now no hot water. The power supply is fine and nothing is immidately obvious but its ice cold. Any one got any advice on this problem as well?
Tom
March 2012