You may need to replace your start button, also you can check your drum belt to make sure it hasn't come off, the most probable cause is the little microswitch behind the door lock, may need replacing this is a common fault they only last so often,what with the door opening and closing so many times, each time you close the door it trips the microswitch. They are very prone to breaking down, (microswitches.)
John atkinson, July 2010
