Brand-new-sunbeam-microwave-not-heating, warning!! always put safety first when dealing with electricity!!! microwave not working?? quick troubleshoot and what you may need to fix video! to support .... For sunbeam microwave owners the tables below will be an indispensable manual. they present possible failures and ways to repair of 3 models of sunbeam microwave: sunbeam sm0701a7e, sunbeam sbm1000w, sunbeam smw945., new well explained video here https://youtu.be/sgj0hvi6aj4 if your microwave works, has power and timer runs but there is no heating, the most common problem.... My first thought would be a blown magnetron. on microwaves, these can generally go dead, usually with a popping sound. i think there might also be a fuse in your microwave, but i do believe that if it was a blown fuse, your mw would not start up. the technician should also not forget the door... - microwave, your sunbeam® warming product is designed to provide the appropriate heat to help maintain your body's own warmth and to keep you comfortable..