Question about Emerson Fans Emerson MW8115SS Microwave Oven
First occured when I was melting butter in a glass container. From behind the "screen" on the inside of the machine, came a bright light (electrical arcing) and a point on the screen began to glow and smoke.
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Quite often this is due to grease or food particles stuck somewhere in the cavity of the oven or stuck on or behind the waveguide cover.
It may also be in the area of the turntable support, coupler, or motor.
The waveguide cover (also called a spatter shield) 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 and dried thoroughly.
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. It provides important protection for the magnetron.
If you need further help, please reply back with your brand and model number so we can help you.
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
Posted on Jan 03, 2009
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Posted on Jan 02, 2017
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