Question about Kenmore 80412 Microwave Oven

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Noise/humming while cooking; especially popcorn; intermitent on other food

I have a Kenmore over the range microwave that I purchased in 6/6 and have had it about 1.5 years. Model 761.80523500 (#80413). It just started making a load humming noise while cooking popcorn. Tried some other stuff like water and it only did it briefly (intermitent).

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Re: Noise/humming while cooking; especially popcorn;...

Sounds like a mounting bracket insulator for the fan. Like, maybe they had a recall because of this???? This is not normally a service item. Fight 'em for any charges.

Posted on Dec 23, 2007

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Re: Noise/humming while cooking; especially popcorn;...

Popcorn is heated by a metallic insert in the bag. This causes some additional power consumption by the magnetron. It is no cause for alarm.

Posted on Dec 19, 2007

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Arcing sharp carosel microwave when i put orville redenbacher mini popcorn bags in i found oil on outside of bag

Arcing will occur if you have any metal inside the microwave, or if the powder paint on the inside has been damaged. If the paint is damaged dispose of the microwave

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  1. Power Issues

    • If your microwave oven won't come on, ensure that the power cord is plugged into an outlet and that the power is on. Replace any blown fuses, and reset a tripped circuit breaker. If the microwave won't run, see that the door is completely closed and that nothing is stuck in it. Ensure that your door is not broken. Replace if necessary. See that you have not started the timer as opposed to the cooking function. Press "Start/Enter" to start your microwave.


    • Your display will flash if your power goes out. You must reset the clock. If you do not hear a tone at the end of cooking, ensure that you have enabled the audible tone. Also check that you are using the right command. If your power goes out while your food is cooking, you must reset both the cooking time and clock.

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    • If you see sparks while you are cooking, remove any metal objects or plates with silver or gold trim. If your food is taking too long to cook, ensure that you have selected the correct power level for the food item. Remove any other appliance from the 20-amp circuit line. Additional appliances on the same amp will draw too much power away from the microwave. Also ensure that you have selected the correct food item in the preprogrammed menu. Each microwave has its own error codes. Always read your manual to determine what the error code means. Examples of error codes include "E-11", "E-12" and "E-13." This means that you have a defective sensor, and you must get your microwave serviced. The "SE" error code indicates an issue with your control panel.

    Additional Problems

    • You may hear gear noises, especially a humming noise; the fan will automatically come on while your food is cooking. If your turntable plate makes noise, first clean it, and then see that it is positioned correctly over the roller ring. If your nearby appliances are experiencing electrical interference, move your microwave farther away to correct this problem.

Jul 22, 2013 | Microwave Ovens

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GE Spacemaker SL 1800 arching

Get some warm soapy water and clean inside making sure there are no food particals, if no change! the magnetron may be breaking down.

Mar 13, 2012 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

Power Shuts off when making popcorn Why? Only popcorn.......

Popcorn is a very low-moisture food to cook, and cooking low-moisture foods often reveals impending or existing part failure in the microwave.

It may be that you have inadequate magnetron cooling or your magnetron may be going out.

Inadequate cooling can be caused by:

- failing / failed internal cooling fan
- blocked air vent or filter
- microwave cover not installed properly

We have a sound clip of what a microwave should sound like when the cooling fan and high voltage section are operating here.

There should be a "mini-manual" hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting, & testing.


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

You can find links to helpful exploded view diagrams and part ordering help here.

I'd recommend that your bookmark this link to your favorites.

Please note that FixYa is not currently notifying us Experts when Clarification Requests are answered.

To allow us to help you effectively (at no charge), please post a
NEW problem to FixYa, and please include your brand name and the full model number from the tag in or on the unit, your symptoms, as well as the answers to these questions:

Is the internal cooling fan running when you cook?

Are the air vents and filters clear?

Feb 09, 2010 | Daewoo Microwave Ovens

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Spacemaker (JVM1871SK) 1800 Microwave doesn't microwave

Remove the case and see if you can localize the smell. Likely suspects are a shorted high voltage diode (replace) or a shorted stirrer bearing (replace stirrer)--a fan-like device located within the sheet metal waveguide near where the microwaves enter the cooking cavity. Make sure to have a cup of cold water in the cooking cavity when looking for problems. The problem could also be the high voltage transformer or the high voltage capacitor, but these are more rare problems. There are no radiation problems with the case off, but there are high voltages associated with the magnetron and it's power supply.

Oct 08, 2009 | GE Profile Spacemaker 1.8 Cu. Ft....

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Bad to cook popcorn in the microwave?

I have run a lot of popcorn thru the microwave with no effect on the oven.

I've never seen any cautions to not do that or to even be careful doing it.

A lot of microwaveable popcorn is sold, so that's a good indication.


Aug 18, 2009 | Welbilt MR95TW Microwave Oven

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No homegrown popcorn in a microwave? why?

Popcorn is a food that has a very low moisture content, and microwave ovens rely on moisture content (water molecules) in order to cook.

If there is not enough moisture to absorb the microwave energy, much of the the energy is reflected back to the magnetron and damage it.

This is also what damages a microwave when it is run empty.

A simple solution is to add about 1/2 to 1 cup of water in a microwave-safe container in the back corner of the oven and cook your popcorn a little longer.

You'll have to experiment a few times to get the combination right for your particular model.

But allow our microwave about 15 minutes or so for the magnetron to cool down between popcorn cooking sessions.

Also, I would suggest putting a paper plate upside-down on the turntable tray, then putting the popcorn container on top of that.

This does two things: It keeps the extremely hot popcorn off the tray, reducing the chances it will crack, plus it raises the popcorn up so it will heat more efficiently.

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

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1 Answer

GE Spacemaker XL1800(JVM1850CF001) - Loud Humming noise

You either have a bad magnetron tube (5 or 10 year parts warranty item through GE Factory Service 1-800-432-2737 or or a shorted high voltage rectifier. I think the light being out is a secondary problem.

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Toaster Master 1979 has less power

Because the microwave energy is beamed into the interior of the microwave and then dispersed by a metallic "stirrer," the pattern of the energy can be fairly consistent, rather than completely random. But this pattern sometimes causes certain portions of the food to overcook (creating tough spots) and others to undercook. A microwave oven with a carousel is far better at cooking the food consistently--the pattern becomes quite random while the carousel is turning.

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