Hi, usual fault with this model and many of its stable mates is that the high voltage (4000v 700ma) fuse from the transformer to the capacitor has blown. This is a very dangerous area for the untrained to be playing with so take care, unplugging from the mains is no guarantee of electrical safety. The second and less likely fault will be that the door switches are shot, they need replacing along with the monitor fuse. For further help and advice see microwave-repairs.co.uk Parts available by post
kindest regards
patrick, June 2009