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Thumping noise in microwave

Recently developed a "dull thumping noise" when turned on. Everthing else seems ok.

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The glass turn table is probably not lined up.

Posted on Sep 17, 2008

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Is it a rhythmic thumping, or intermittent, or one thump when it first starts?

If it's rhythmic, it may be a failing turntable motor or stirrer.

If it's a thump just when you hit Start or when the magnetron turns on at the beginning of the cook cycle, it may just be a common noise that they sometimes make due to the magnetic field produced by the high voltage transformer.

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

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

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