Question about KitchenAid KHMS2050SSS Microwave Oven

1 Answer

My microwave turns completely off... Touch pad and lights inside... I have to wait 10 seconds to 10 minutes and then it turns back on and will ask if you want to set the clock. Sometimes it will let me start it and other times I punch in a the amount of time to cook press start and it goes completely blank. I have to wait again and sometimes it will let me cook other times blank? Any help would b appreciated

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  • 178 Answers

Hi Ben,
This has got to be an intermittent power to the control PCB problem. The control board asking to set the clock means that the CPU has been reset by losing power. First, make sure that the problem is not the outlet by plugging in a small lamp or digital clock to see if it works intermittently or resets. Leave it plugged in for at least 24 hours.
(If using a lamp, put in a small 20 watt light bulb or CFL).
It could also be a bad connection to or at the fuse holder in the microwave oven. If all of the wiring and connections look good, it's most likely a bad connection on the control PCB probably around the transformer on the board. Be careful.......

Posted on Oct 28, 2013

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Posted on Jan 02, 2017

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MicrowaveSvc
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SOURCE: Kitchenaid ykcms135h intermittent problem.

Exactly! There is a wire mesh gasket sealing the mag where it goes into the waveguide mounting hole. If that seal is not tight, microwaves escape, causing bizarre electrical interference. Sorry I didn't see before the bogus answer above got posted - I've been tied up and away from the PC.

Posted on Apr 10, 2007

SOURCE: SPORADIC HEATING

check highvoltage crcuit ,and check fan, and turntable motor,

Posted on Oct 20, 2007

MicrowaveSvc
  • 9047 Answers

SOURCE: Kitchen aid microwave oven not working.

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

I'd say you have a contaminated or failing keypad or possibly residue on the boar dor where the keypad connects to the board.

Is it possible that some spray cleaner got into the controls?

I always recommend that users instead spray cleaner on a soft cloth then wipe the control panel.

Also, I always recommend non-ammonia cleaners since ammonia can crack and damage plastic.

Otherwise, the spray can get into the controls and lock it up or make it act odd.

If it does not dry out over time, it may need to be manually dried or blown out.

The keypad may be damaged or worn out, or control unit may be damaged.

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

Posted on Nov 26, 2007

MicrowaveSvc
  • 9047 Answers

SOURCE: Kitchenaid always shows "CLOCK SET", I think keypad is STUCK

F2 on a newer Whirlpool / Kitchenaid microwaves means you have a shorted keypad.

If and when an oven is coming on or doing anything by itself, this is very dangerous and can result in a fire.

So until it is repaired, please leave it unplugged or leave the door open when it's not in use, and please do not leave it running unattended.

If you (or someone you know) might want to replace it yourself, I have uploaded a handy guide with pictures showing you what's typically involved.

You can usually find helpful exploded view diagrams and order parts by entering your full model number here.

There should also 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.

If you would like to have us do this repair for you, we do that for $39.95 plus part costs.

But please note that for some models, the membrane keypad is not available as a separate part, so you would have to order the control panel frame which comes with a new keypad.

In this case, you simply move your circuit board into the new frame.

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.

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

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

William E. Miller, AS-EET
prototech@usa.net
http://www.microwavedisplay.com

Posted on Feb 08, 2009

bestdarngood
  • 3037 Answers

SOURCE: Microwave stopped working...

Sounds like the magnetron has failed. This is the component that produces the microwaves that heats the food.

The cost of the magnetron is about 95% of the cost of a microwave oven. Most people don't, for this reason, replace the magnetron, they replace the whole oven which is probably what you will end up doing.

There is a possibility that the circuit that provides power to the magnetron is faulty and you need to take it apart, find the proper electrical leads and test them with a volt meter. To do this you have to remove it from its mounting and take it apart. It is a fairly lengthy process however.


Benjamin

Posted on Apr 26, 2009

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Remove the plug from the wall outlet and wait about 10 seconds before re-inserting it. The plug must be firmly inserted to transfer electricity to the appliance.


Open your home's circuit breaker box and reset the breaker if it has tripped and is set to the "Off" position. Simply slide the breaker over to the "On" position to fix a breaker that has tripped.


Plug a different appliance into the same outlet to make sure the outlet you are using is functional. Plug the microwave into a different outlet to see if this yields different results.


Press on the microwave door to ensure it is completely closed. The microwave will not function until the door is fully shut.


Press the "Start" pad on the display panel after setting the time. Failing to press this will result in the microwave not knowing that it should start.


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I think on this one you press the CLOCK/TIMER pad, then enter the desired time using the 10 MINUTES, 1 MINUTE, AND 15 SECONDS pads then press CLOCK/TIMER again.

If that doesn;t work, press STOP / CLEAR then try the above again.

Let us know if it does not work.

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

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