Question about Kenmore 80882 Microwave Oven

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Over the stove Mircowave just reinstalled...light is on but not heating up

I just reinstalled an Over-the-stove Microwave. It sounds like it's working expect for an odd clicking sounds for a few seconds, it does not heat anything up and it has stopped before the cooking session has finished. I have no idea what is going on! Is there an in-the-unit fuse for the heating only. What could that clicking sound be?

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  • Brian Firstbrook Jun 26, 2007

    Thank you, I will look these... I did order new door latches since the top one was broken and I switch it with the bottom latch so the door would stay closed. That will be my first check before I look these other items. Again Thanks, Brian

  • markbusta Feb 09, 2008

    This Amana is six months out of warranty and three days ago would sometimes heat and sometimes not. Today it won't heat at all. It sounds like its working but nothing heats up. As a test, I put it on 50% power with a glass of water. You could hear it click and hum like it was working, then click and not hum. This happened at intervals that would appear to be appropriate for 50% power, but the water never heated.

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William Miller

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If any wiring on the control panel was or might have been disturbed, I would want to check that. It may be that something (like a sensor) did not get plugged back in. Otherwise, I would verify that the door switches are working properly and the mounts for them are not loose or damaged. If this is a convection model, also check check the damper, damper motor, and damper switch. If you or a friend decide to work on it, we have *critical* safety, disassembly, and troubleshooting info (as well as a text file which helps in diagnosing and repairing door switch problems) at our site, which is linked at our listing here on FixYa: http://tinyurl.com/yzjozk You can find helpful exploded views, and often service manual portions here: http://www3.sears.com/

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Posted on Jun 26, 2007

  • William Miller
    William Miller Jun 26, 2007

    The damper drawing above is typical, not exact to your model. It's a motor that runs a flap (damper) and the switch that detects the damper position.

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Not heating
Are you saying that you're unplugging the maghnetron and then running it? If so, that's incredibly dangerous.

You're looking at 3000VDC which can kill instantly.

It may be a shorted diode. Unless you have a really good meter, you won't be able to properly bias the diode to be able to fully test it, but they usually short when they fail.

It may also be a bad magnetron. Most often when they fail and make noise, it sounds like someone gargling into an empty coffee cup. Odd, but true.

We have critical information on safety & disassembly at our site,
linked here on Fixya: http://tinyurl.com/yzjozk

You can usually find helpful exploded view diagrams and order parts by entering your full model number here:
http://tinyurl.com/gv383

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