KitchenAid Microwave Ovens - Recent Questions, Troubleshooting & Support

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KitchenAid Superba KEMC308KSS0 Microwave oven acting like we're having repeated powerline brown-outs, but we're not.

There is a huge capacitor inside microwaves, and that description sounds like it is starting to fail. There are smaller capacitors as well. It won't be a door switch, they work or they don't. I had two Panasonic Commercial microwaves in a pub kitchen, one plain and one was a combination machine and both had drop down doors.
5/20/2022 1:57:13 AM • KitchenAid... • Answered on May 20, 2022
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Can I disable the beeping/tones on my Kitchenaid microwave?

I'm not familiar with that particular model, but with many of their models (and many other manufacturer models as well), unfortunately the beep cannot be turned off.
5/12/2022 2:55:57 PM • KitchenAid... • Answered on May 12, 2022
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KitchenAid KMHS120ESS Microwave. Where can I find the wiring Schematic for it?

Question moved from Cars and Trucks category. No wiring schematic exists, but this does show there is an internal fuse. https://www.repairclinic.com/ProductDetail/2145587 Service manuals aren't generally available, because the insides are so dangerous! Keep away from the step up transformer and capacitor with 120,000 volts stored in it. https://www.google.com/search?q=kitchenaid+kmhs120ess+service+manual& https://www.google.com/search?q=kitchenaid+kmhs120ess+wiring+diagram&rlz=1C1QJDB_enCA643CA644&sxsrf=APq-WBu2IViisg_YzIUbx0IaRs0iQu4SNw:1648409430308&source=lnms&tbm=isch&sa=X&ved=2ahUKEwiDuqbUg-f2AhUaac0KHd1pAb8Q_AUoAnoECAEQBA&biw=1920&bih=937&dpr=1 ..
3/27/2022 7:31:44 PM • KitchenAid... • Answered on Mar 27, 2022
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Kitchenaid KEMS308SSS00: when I open the microwave door now, instead of light coming on, the turn table turns!

It's a guess, but something mis-connected on that new board. They usually have a number of edge connectors and you have two on the wrong pins. A guess never the less.
3/1/2022 8:28:40 PM • KitchenAid... • Answered on Mar 01, 2022
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KCMS145JSS kitchenaid microwave start button doesn't work unless I hold it down the entire time it's on.

sounds like Touch pad/Keypad/Membrane Switch is bad or control panel is bad. You can go online and using your model number search for parts, or have it repaired. If your order parts do you have the skill, knowledge and tools to do job? You could end up throwing parts at it. Personally I would weigh the cost of repair plus the age of unit versus a new one.
1/11/2022 4:26:01 PM • KitchenAid... • Answered on Jan 11, 2022
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Fuse location on kitchenaid kmhs120ess-4 over stove microwave/fan combo unit

You can find helpful Kitchenaid parts diagrams and get parts at affordable prices for most models from The Pros by entering your model number here:
http://tinyurl.com/gv383
11/16/2021 10:11:30 PM • KitchenAid... • Answered on Nov 16, 2021
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How do I remove door on KitchenAid microwave YKHMS2050SS-2 in order to replace the CTRL-ELEC control card inside the door?

For the KitchenAid microwave, model: KHMS2050SSS2 I found that i did not have to remove the screw. what i did was loosen the screw as much as it would go before getting tight again.(hard to screw) then on the bottom end of the door hinge (lying on its side) i pryed the bottom hinge off its mount. (with flat head screwdriver) from there i was able to get at the screws to separate the black surrounding stuff from the outside door... then finally i could get inside to get at the door panel controls. I noticed a whole bunch of condensation and on the back of the touch panel (electrical board).. i will replace that part as I think that is the culprit as to why the keys get pressed randomly, beeping randomly and wonkiness :)
4/24/2021 6:22:26 PM • KitchenAid... • Answered on Apr 24, 2021
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I have a Kitchenaid built-in microwave, model KBMC147HSSO that seems to run OK but will not heat. I suspect it is a bad magnetron. The oven is nearly 17 years old.

I have a Kitchenaid microwave KCMS145JSS0 that had a loud buzzing sound, stopped heating and there was a smell of burning electronics. It is about 19 years old, but can not be replaced because it is built in and you can not find a microwave anywhere that will fit in the opening of the 24 inch cabinet. So I had to fix it. Turns out the problem was the Magnetron. This is what I did to prove the problem. First open the unit, discharged the high voltage capacitor with a short across the terminals using a test lead from my VOM analog meter. Next disconnected the connector to the Magnetron and started the microwave. The buzzing sound was gone. Powered off the microwave and again discharged the capacitor. Using my VOM on the highest ohm value tested between the terminals on the Magnetron to ground and had a reading, it should not read anything, it should read open or infinity - Magnetron Bad. Just to make sure the other high voltage components were good I performed the following tests. Checked for continuity of the 3 different circuits on the high voltage transformer, all were good. Tested the capacitor by removing all the leads connected to it and discharged it once more. With the analog VOM set to the highest value, touched the two terminals on the capacitor. The meter should swing to the right and move back to the left as the capacitor takes on a charge. Did that just fine. There is a high voltage diode connected to one of the capacitor terminals and the other end to ground. With the analog VOM set to the highest ohm setting touched the meter to the disconnected end and ground and got a reading. Reversed the meter test leads and didn't get a reading, infinity. I was very confident the Magnetron was my only issue but decided to replace the diode along with the Magnetron because it was $20 compared to the $160 Magnetron and I had that smell of burning electronics. With the new parts the microwave now works great and no need to reconfigure the cabinet installation.4ae0592f-2f48-49d0-887b-5e06be0f2b42.jpgimg_20201115_120324276-gbuu514lwj4gf3zniqowptdg-6-2.jpg
11/19/2020 1:23:17 AM • KitchenAid... • Answered on Nov 19, 2020
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KitchenAid Microwave Touch pad stopped working. Spoke to a technician and told me that you have to replace the complete door. Is this true??? Part No. AP4500800 Mfg Part Number W10282802 Microwave mo

You must presume Tech knows what he is talking about , but get 2nd opinion, then you will be sure.
4/6/2020 1:19:34 PM • KitchenAid... • Answered on Apr 06, 2020
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Would I find the wiring Schematic inside my KitchenAid YKMLS311HBS Microwave?

Yes, unless a technician may have removed it during a previous service. It should be located behind the controller assembly, sometimes in a small envelope.

At my Web site, I have a video showing you how to remove a typical microwave controller in about 5 minutes.
http://www.microwavecontrol.com

if you have other questions, please feel free to contact me directly by email through the Web site or at [email protected]
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11/14/2019 1:57:44 AM • KitchenAid... • Answered on Nov 14, 2019
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How to remove front door on a KHMS2050SSS Kitchen Aid Microwave and replace touch control panel. started randomly changing screens and beeping

Its possible it may need a rest or something biut see this video: More links:
11/3/2019 4:53:36 PM • KitchenAid... • Answered on Nov 03, 2019
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Kitchenaide microwave relay clicking then shuts down.

Yes, it is probably a bad relay. Usually appliance techs just replace the whole control board, because those relays can be hard to find and buy.
10/14/2019 4:03:20 AM • KitchenAid... • Answered on Oct 14, 2019
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Kitchenaid KEMS378 built-in oven/microwave combo. The microwave fan stopped working. turn table still rotates and still heats food. how do I fix fan?

you cant fix the fan you got to take it to someone who knows about things like that?
10/6/2019 4:20:58 PM • KitchenAid... • Answered on Oct 06, 2019
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Kitchenaide microwave not working.

Yes, it is most likely a bad relay on the control board.
10/5/2019 4:49:07 AM • KitchenAid... • Answered on Oct 05, 2019
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KITCHENAID MICRO/OVEN COMBO, EVERYTHING WORKS (CLOCK, TIMER, LIGHTS, OVEN) EXCEPT THE MICROWAVE. IF I TRY TO USE THE MICROWAVE I GET A "DOOR" MESSAGE DOOR IS CLOSED BUT IT ONLY BEEPS AND SAYS DOOR.

Hi Jill, what the screen indicates is that the door is not closed There are a number of internal contacts that have to be closed for the microwave to work If any of them are wrong, they can give you that information. Depending on the brand there may be between 2 or 3 contacts in the door area that generate that warning Indicate brand, model and type of equipment you are commenting on, in order to find the best possible solution I wait your answer Regards Franco Dosil Hola Jill, lo que te indica la pantalla es que la puerta no esta cerrada Hay una serie de contactos internos que tienen que estar cerrados para que el microondas funcione Si alguno de ellos esta mal puede darte esa informacion Derpendiendo de la marca pueda haber entre 2 o 3 contactos en la zona de la puerta que generan ese aviso Indica marca, modelo y tipo de equipo del que estas comentando, para poder encontrar la mejor soluci?n posible Espero tu respuesta Saludos Franco Dosil
9/12/2019 8:56:11 PM • KitchenAid... • Answered on Sep 12, 2019
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