How can I fix my AEG Micromat combi 635 microwave which doesn't heat up?

Check the high voltage fuse, it comes from the secondary of the main transformer (the big one). It is probably enclosed in a snap fit plastic insulator case/cover. They are special fuses about 5Kv AT 800mA and longer than normal but can be bough from ebay or spares shops.

(Make sure you short out the capacitor for safety using an insulated object such as a screw driver as the cap can stay charged for a long time after power off) and obviously discconnect the mains for several hours first, dont run it without the cover on either..

lunartick
February 2010