Thread: Kenmore Microwave Oven Fuse Keeps Blowing

I have a Kenmore built-in (over-the-stove) microwave oven, Model No. 721.8935090 that is about 14 years old. About a year ago it quit working, and after some investigation, I found the ceramic fuse - after replacing it, all was well for a while.

Then, a few days ago, the fuse blew again. I replaced it, and got a minute or two into a cooking cycle - I opened the door to check on what I was cooking, shut the door, and the fuse blew again.

I have always heard that if the same fuse keeps blowing, you have a more serious problem, but I wanted to make sure before I either take the thing somewhere to have it checked further, or trash it and buy a new one.

I think I read on here somewhere that slamming the door to the oven could make the fuse blow - I didn't slam it THAT hard (the wife and kids do it much harder), but I guess you could consider it slamming.

Any suggestions on what step(s) to take next?