Question about Microwave Ovens

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Inside the microwave the piece of cardboard looking rectangle has fallen off. is this dangerous

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Yes. This is the waveguide cover, and it needs to be there to protect the magnetron from damage.

The waveguide cover is usually about the size of a playing card and often held in place by a plastic rivet or held in a slotted opening.

It can be fragile, and the metal edges of the oven behind it can be sharp, so be careful!

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

You can often find helpful exploded view diagrams and order parts by entering your full model number here or here.

Please write back with your brand and model number if you need further help.

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

William E. Miller, AS-EET
prototech@usa.net
http://www.microwavedisplay.com

Posted on Apr 21, 2008

  • SAYID1225 Jul 20, 2011

    I'M LOOKING FOR A COVER MYSELF. I TRIED THOSE LINKS THAT YOU PROVIDED, BUT I COULD NOT FIND A MATCH. I HAVE AN OSTER MICROWAVE MODEL NUMBER OM1101NOE. CAN YOU HELP ME?

  • Fillymouse Jul 31, 2013

    I trued the links as well, and couldn't find what I needed. My mocrowave is a Danby Diplomat SN-0505101200838, Model # DMW1104W. Please help.

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On the inside top right side of the microwave there was a cardboard cover held on by 4 corner points. The cardboard has fallen out now as it has come unsecured from the points holding it in place. Is it...


That's the waveguide cover.

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

It provides critical protection for the magnetron.

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.

A full Galaxy/Sears/Kenmore model number has 3 digits, a dot, then 8 more digits, such as ###.########


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

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No, that is the "waveguide cover".

It provides very important protection for the magnetron.


And always keep it clean according to your manual's instructions.

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

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