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Flashing and buzzing in microwave while operating.

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This sounds like carbon build up reacting to RF energy. You need to find where the burn spot is and correct it. It's probably behind or on the waveguide cover usually on the right side of the oven cavity. It looks like a brownish-tan plate about 2-3 inches by 4-5 inches. It's actually made out of mica or plastic. If you can't find the source of this problem, it may be inside the waveguide in which case the unit is not really repairable.

Posted on Oct 28, 2013

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Posted on Jan 02, 2017

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