Question about GE JES1384SF Microwave Oven

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GE Microwave is arcing inside


I thought cleaning the wave guide cover on both sides would solve my problems, but they remain the same. When using the microwave I’m noticing a blue arcing coming from the top cover inside. 

While arcing it continues to heat food products with no problems. The arc doesn't reach inside the cooking area. And I didn't notice any burn marks on the wave guide cover either.  


Any suggestions?  

GE JVM1440WH01 

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  • 3 more comments 
  • landolfi99 Jan 08, 2009

    I'm having the same problem with a GE SCA2001BSS 003, Arcing doesn't occur consistently, the waveguide is perfectly clean (in fact it's new). In our case, the waveguide was missing and we just put a new one in. We're not the original owners of the microwave, so we don't know for sure it was there before, but the waveguide is brand new.

  • gallant17 May 11, 2010







    I'll add the problem comes and goes. At times it works fine and other times I'm afraid to keep it running for fear I'll start a fire. 

  • Anonymous Mar 16, 2014

    Remove and clean wave cover Kitcenaid microwave KCMS1555SSS-1

  • Anonymous Mar 16, 2014

    How to Remove and clean wave cover Kitcenaid microwave KCMS1555SSS-1

  • Anonymous Mar 20, 2014

    Arcing inside cooking area

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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.

In some models it is the plastic ceiling.

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.

If you need more specific help, please reply back with your brand and full model number.

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 Feb 03, 2009

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Everything clean, not the problem.

Posted on Jun 02, 2013

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1 Answer

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Typically most arcing in a microwave is caused by food splatter. A microwave cannot tell the difference between what is on a plate or on the wall or ceiling. Every food particle in a microwave will continue to cook until it turns to carbon and will attract the microwave energy and focus it to that spot and the unit will arc. Thorough cleaning of the entire microwave cooking cavity and removal of any burn or soot mark will commonly stop the arcing. If your microwave has a painted cavity, you can even use some very fine sand paper to remove any burn mark. Always cover what you are warming and really keep the inside of the microwave clean. If your wave guide cover is made out of the Mica board, and If it has gotten wet from cleaning or from splatter, it must be replaced. You can either order a new one or order a sheet of the mica board and cut out a new one yourself. If the microwave is arcing in the waveguide, generally the unit will need to be replaced. One quick test to see if the unit will work is to remove the bad cover and place a small container of water in the unit, run the machine of a minute or so and see if it still arcs. If it does, the arcing is in the waveguide area, if not it may have just been a problem with the cover. You can run the unit without the waveguide cover in place, it is only there to prevent splatter from getting into the waveguide, so removing it to test the unit is ok. If the area inside the wave guide shows signs of soot and arcing. You can try to wipe that out with some alcohol or lacquer thinner and then try it again. Good Luck.

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