Question about Daewoo KOR-860A Microwave Oven

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Blowing fuse problems

Hello, Actually my oven is a MIDEA brand (whatever no name brand that is) and the problem is with the mains fuse. After I repaired some contacts problem that prevented the oven to start microwaves when I close the door (the contact wasn't turned) now I have a problem with the fuse. It blew up after one day of the initial repair. I have dissasembled the oven, done a quick check and replaced the fuse. I've done some testing, all seemed to be ok, the oven worked properly, no fuse blowing out, no nothing. After some hours, next day when I tried to use the oven the fuse blew again. Once again I've dissasembled the oven, did some checks - all ok, oven working - next day the same :). The fuse blows when I open the door, in the same moment. After I change it I can power on the oven, all works, but after some 15-20hours when I open the door the fuse blows out instantly. Could anyone help me. I have all the tools and can change components or other stuff, but my field of expertise is laptop and desktop repairs not ovens.

Posted by Anonymous on

  • Anonymous Jul 10, 2007

    I thought of that, but I don't understand how I can't duplicate the problem the first day I change the fuse. The oven works during this time, whatever tests I can make on it and nothing bad happens when I open or close the door in any way possible. The contacts seem to be in a good shape. However, the next day the problem will manifest again whatever I do and however I try to open the door (more firmly, slowly etc).



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  • 18 Answers

The door latch switches, and monitor switch assembly needs adjusting. With the door open the two latch switches should be normally open,and the monitor switch closed. Opposite way when door is closed. MAKE sure oven is unplugged before testing

Posted on Jul 10, 2007


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