Smeg Microwave Ovens - Page 2 - Recent Questions, Troubleshooting & Support

i collect used magnetrons from microwaves that others throw out so i repair my own for free. All you need is a magnetron. Maybe a capacitor too. It could have a stuck relay.

If you're talking about a hook-like device that sticks out of the door and goes into a hole in the chassis of the microwave (or any other internal part of the door for that matter) you'll have to take the door apart. Brands and models vary, but some use screws which are obvious, and others use hidden hooks similar to the ones in the drawing I've added to this post. If you can post or e-mail photos of the area where the part goes, we may be able to translate our experience with other brands to yours.

remove screws and pull it apart, find the bulb and replace it.(unplugged of course)