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Microwave (inside on right hand side wall) has a plastic cover. Behind this cover while popping popcorn there was bright yellow/red flashing/light, it started to melted the plastic cover within seconds. ??? No idea I would like to see a set of schematics to know what i am looking at before bringing in in for repairs. This microwave was only purchased April 1, 2006. I am not happy.

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  • katina1 Jul 07, 2008

    Have MR95TW ..making loud pop sound and flashing ..hole in flashpad ..did I junk it can it be fixed?

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  • 155 Answers

You don't say which make/model microwave you have, but on every model I have ever seen the thing that sits behind the plastic cover is the magnetron - the bit that actually generates the microwaves.

Unless the microwave was a fairly top-end model, you might well be cheaper to just buy a new one.

Hope this helps,

Matt

Posted on Mar 27, 2008

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The waveguide cover is usually about the size of a playing card and often held in place by a plastic rivet.

It can be fragile, and the metal edges of the oven behind it can be sharp, so be careful!

The cover and the metal behind it should be cleaned with a mild, non-ammonia cleaner.

If the cavity metal of the oven is chipped or charred, it will have to be sanded smooth and clean.

Then you can apply some high-temperature appliance paint, available from places like Wal-Mart, Lowe's or Builder's Square.

If your waveguide cover is burned, it will need to be replaced.

You can order Sharp parts from Tritronics at http://www.wehaveparts.com

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

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