Thanks Peter. I have got it going of sorts buy using a pad repair kit from WES. The trouble is that over time small parts of the coating falls off and causes the button press to stay on. Then I have to open and clean it again. I have tried to get a new membrane but have had no luck. Now I have decided to just get a new handbox and be done with it. Don't seem to be able to get one of them either. It should not be this hard to get parts.
Regards
Mardy