Question about Kenmore 80882 Microwave Oven

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Kenmore 89942 Microwave no longer heating food

Howdy! Anyone have advice for a microwave that goes through all the right motions, but is failing to heat food at all? Its "hum" is now much louder than it used to be. My guess: Whatever shoots the microwaves has gone out.

Thanks!

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  • grasshut Dec 17, 2007

    Bob! Thanks for that tip. I'll search for the fuses and thermosensor. I assume I'll have to do some dismantling of the microwave to get to these parts? I'm glad you doubt my problem is the magnetron. My readings suggest that was a bit hairy to change out. May I ask what leads you to think the magnetron is still fine?

    Thanks, sir.

    Lee

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Grass...I'd go for checking the fuses and the thermosensor...a black plastic button with two wires coming out of it that is about the diameter of a dime and 3/8 inch thick. If either is open, no power to the magnetron. Your unit may have a diagram inside. Have a look. The magnetron...? I doubt it.

Posted on Dec 17, 2007

  • Robert Hirst Dec 17, 2007

    Lee, magnetrons simply don't fail that often. They generally degrade over time...lots of time.

    If you have access to a schematic for the unit...some units come with them...track it down that way.

    If you find those other fuses or the thermosensor...check them out with an ohm meter...get one at Ace or Radio Shack for less than $10. Good to have around.

    You're welcome and good luck.

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