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Newly Purchased SHARP Microwave Oven Model R-315J Now makes Loud Noise..No Microwaves Produced?

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If I had to bet, I would say the high voltage rectifier diode is shorted or the magnetron has failed.

But since it's newly purchased, it will be under warranty and I'd let Sharp fix it free.

You can contact Sharp at 1-800-BE-SHARP (1-800-237-4277) or visit them online.

We're happy to help and we appreciate your thoughtful rating of our answer.

Posted on Jul 18, 2008

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