Question about Sharp Microwave Ovens
This is the waveguide cover. The owner's manual should cover its removal and cleaning.
This is usually due to grease or food particles stuck to the inside of the oven or stuck on or behind the waveguide cover.
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.
This would not usually be covered under warranty since it was caused by an outside source.
But if you want to try to get help under the warranty, I'd call the manager of Sams. Even though it's outside the usual 30 days return / exchange period, you might get lucky!
You can contact Sharp at 1-800-BE-SHARP (1-800-237-4277) or visit them online.
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
Posted on Oct 07, 2008
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Posted on Jan 02, 2017
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