When you turn it on? You mean when you plug it in?
When a microwave blows a breaker but not the fuse, it's often a shorted monitor switch (usually the middle door switch) or one of the other two door switches, or a loose or broken door switch mount.
If you or a friend decide to look into it, we have critical information on safety, disassembly and door switches at our site, linked here on Fixya: http://tinyurl.com/yzjozk
You can find helpful exploded view diagrams and order parts by entering your full model number here: http://tinyurl.com/gv383
Hi,
Here is a tip that will help you to figure out what is wrong with your Microwave Oven....
Basic Microwave Oven Troubleshooting Tips
heatman101
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my sharp microwave (over the stove kind) blew the breaker anytime we had all the lights in the kitchen on. otherwise it was fine. today, after my wife boiled several dozen eggs, it blew the breaker almost immediately. then it quit working altogether. it is 10 years old. any suggestions?
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