Question about Sharp R-510HW Microwave Oven
My daughter cooked her microwave popcorn.Then she put a small amount of butter in a bowl to melt.aprox 5 sec the microwave was flashing.Removed butter checked inside for metal or other foreign matter did'nt see anything.Hit start with it empty ,and it started flashing again.
Quite often this is due to grease or food particles stuck to the inside of the oven or stuck on or behind the waveguide cover.
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
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Posted on Mar 30, 2008
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Posted on Jan 02, 2017
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