Thanks for looking. I have found the problem A small micro switch. On the door are two black catches that protrude from the back of the door. The lower one activates two micro switches as it enters the aperture.
After removing the casing i saw the switches. Close the door and look for the catch coming through. One of these two switches was stuck in. I moved the switch around and it released. I then sprayed some switch cleaner into the body of the switch. At the moment all working fine.
Thank you. Tim
Tim, July 2014