Question about Panasonic NN-T774SF Microwave Oven

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My Panasonic NN-T785SF Keeps blowing the Fuse?

I have replaced the primary switch, secondary switch, and the monitor switch. I input the time I want and press start and it blows the fuse? I wish I can further diagnose but I dont have any specs for the other component?

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

If it went dead a few seconds after pressing the Start pad, that's usually a failing high-voltage transformer.

Here are some links you or someone you know can use (in order given) for test help, but read the safety warnings first:
http://www.gallawa.com/microtech/cap_test.html
http://www.gallawa.com/microtech/xformer.html

The best place to order parts is Tritronics. You can also call them at 866-779-5835.

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

Posted on Nov 27, 2008

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http://136.166.4.200/contents/Microwave/LMVM1935xx/LMVM1935xx_Service_Manual.pdf

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