Question about Jenn-Air JMC7000 Microwave Oven

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I have a jenn-air JMC9158BAS mircorwave. After a few seconds of cooking, it starts to make a loud buzzing sound. I removed the microwave from the cabinet and starting taking it appart. When the electronics were exposed I baked a potato to see if I could figure out what was making the noise. Using a wood "listening stick" the noise seems to be coming from the high voltage xfmr. Is this common? The turntable is also somewhat noisy. Is there a bearing to replace?

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  • vwranosky Oct 24, 2010

    Microwave still cooks well. Would a bad magnetron or hv diode result in poor cooking performance? I am aware that the capacitor would need to be discharged prior to any electrical servicing.



    Thanks

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1 Answer

Usually a bad magnetron or bad high voltage diode will cause the microwave to have loud buzz noise. If you still have a warranty, send it in for repair. If your microwave is no longer in warranty then it will be cheaper and safer to buy a brand new one because repairing microwaves can get expensive and you could get electrocuted if you don't know what you are doing

Posted on Oct 24, 2010

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My Jenn-aire microwave says locked and has a picture of a padlock. I was microwaving bacon and had just put it some to cook ( my second batch per se) and everything was locked up. I tried pushing options...


Most likely you set a child lock (front panel lock) by holding a button too long (3 seconds). Without a model number, I can't be absolutely sure of the keypad lock for your Jenn-Aire microwave. Usually, the key will have a small padlock icon on it. Press and hold this key. On my microwave you press and hold Start to toggle the lock off.

On a Jenn-Aire JMW2430 and similar models, the Button Lock is activated by a several step process (More and Button Lock). However, pressing and holding the Start button will deactivate it.

I hope this helps.

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Magnitron is going out. Suggest discarding microwave it will possibly go completely out in the near future. Good luck hope this helped

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We see (and repair) this a lot. The problem is on the control panel, which we regularly repair nationwide by mail for $39.95 postpaid in about a week.

At our Web site, we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

This light failure often occurs when a bulb goes out and the filament shorts, or when the bulbs are removed or installed without first unplugging the oven from the power line. Either can cause such a failure on the controller.

This can often also affect the exhaust fan operation, too. The lights and fan can be inoperable or stuck on too.

Details of our service and critical safety information and disassembly information is at our site, and our link is at our listing here on FixYa.

Feel free to contact me directly (and please remind me of your full model number) for more information & help.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

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