Question about Jenn-Air JMC7000 Microwave Oven

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Fuse blows after about a week of working.

Same problem....I replaced the fuse, microwave worked fine for about 1 week then blew again. Is this a major fix or should I just plan to buy a new microwave to fit the space above the regular oven?
Thanks, Dave

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If you have a fuse that keeps blowing you have a short somewhere May or may not be cheaper to buy a new one

Posted on Sep 07, 2009

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If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.

Here is a link you or someone you know can use to test it, but please read the safety info:
http://www.gallawa.com/microtech/cap_test.html

You can order Panasonic parts from Tritronics here or by calling 866-779-5835, but if you don't find what you're looking for there, try here.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

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Typically, when the fuse blows in the microwave, the high voltage capacitor fails and becomes shorted.
The door switches are also configured in such a way that if tampered with (in this case, failed switch or latch) the fuse will also blow. Check the capacitor first.

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reg501

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check high voltage transformer and high voltage diodes, condencer, and magnetron.,

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