Question about GE JVM1870 Microwave Oven

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SENSOR ERROR The oven was fine earlier today but when I tried to pop popcorn this evening, it has a harsh grinding sound, like the sound if you would put metal in the oven. I did not have any metal and I have popped this popcorn previously. I tried heating water in a cup and it does the same thing.

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Did it perhaps sound like someone gargling or growling into a coffee cup?

That's the kind of sound a magnetron often makes when it goes bad.

If you see flashing or arcing (sometimes more visible in a dark room) then there may be grease or food debris on or behind the plastic waveguide cover. It would need to be cleaned or replaced if it were burned.

If you or a friend decide to work on it, we have *critical* safety, disassembly, and troubleshooting info at our site, which is linked at our listing here on FixYa:

You can usually find helpful exploded view diagrams and order parts by entering your full model number here:

Please write back with more details if you need further help.

We appreciate your thoughtful rating of our answer.

Posted on Nov 18, 2007

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in 99 % of cases the problem is the magnatron it is a very expensive part and unless the microwave is well worth the money we normally write the units off

sorry (

but i hope this helps

best of wishes

please remember to take the time to rank this reply .

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