Question about Sharp Microwave Ovens
If you mean the waveguide cover, those are almost always mica or plastic.
They would normally install by sliding them into slots in the cavity or ceiling, and sometimes they are held in pl;ace with a plastic rivet, too.
If a waveguide cover is damaged, it should be replaced with a new one, not repaired in any way.
Arcing will occur, which can damage your magnetron, waveguide, and / or chassis.
If you mean the waveguide itself, which channels the microwave energy from the magnetron to the cooking cavity, that cannot be removed or replaced. They are welded in place. If the waveguide is bad, the oven has to be replaced.
We have quite a few Sharp service manuals which cover disassembly and parts lists, etc. If we have it, I can point you to a link to download it free.
Feel free to contact me directly with your model number.
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
William E. Miller
Posted on May 30, 2010
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Posted on Jan 02, 2017
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