Question about Maytag MMC5000 Microwave Oven
Some units use a plastic or fiberglass cover over the wave guide where the microwaves are dumped into the oven cavity. If this cover gets coated with food/grease, or soaks up grease, it can arc, or catch fire. If unit is still operating properly otherwise, I would suggest replacing the cover. You need to inspect the wave guide, also, to make sure it is still intact, and there are no cracks in it that would allow microwave radiation to escape.
Posted on Apr 17, 2014
I'm a little late in seeing your problem so you may have solved it already. But in the absence of metal objects inside the oven, any arcing is cause for you to not use the appliance until a solution is found. Cleaning - of course. Replacing the magnetron - perhaps. Damage to the wave-guide - quite unlikely.
Posted on May 05, 2014
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Posted on Jan 02, 2017
The magnetron is getting to hot and will eventually fail, especially when it is arcing, "a safety issue convern" the cause is the part mentioned above, or there is exposed metal on the inside cavity.
Posted on May 08, 2012
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