Question about LG Microwave Ovens

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There is a square piece of cardboard inside the side of the microwave which is now damaged and keeps falling down. Can it be replaced and what is it there for?

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  • yvonne60 May 22, 2008

    Thanks for the advice, at least I have an idea of what to do, the manual gives no indications that the waveguide cover exists.

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This is the waveguide cover, and it's actually made of plastic or mica.

It is very important - it protects the magnetron and waveguide from grease and food particles, which - if allowed to build up - can cause arcing and damage.

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 or damaged, it will need to be replaced.

For Goldstar / LG / L.G. help, call 1-800-243-0000 (M-F, 7am-8pm CT, Sat 8-5 CT) and choose the appropriate prompt from the menu or visit http://www.lgservice.com.

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

Posted on May 22, 2008

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

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You should be able to get Galaxy parts from the Sears site.

To find helpful exploded view diagrams and get part numbers, you can just enter your full model number at the Sears parts site.

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We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

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