Question about KitchenAid KHMS155LSS 1000 Watts Microwave Oven

3 Answers

Microwave starts by itself - NO JOKE

I have had to shut the circuit braker to the Microwave, it repeatedly starts a cooking cycle by itself. It begins by asking for number of pieces, cycles through the options and then starts to cook by itself. It is very dangerous, ANY SOLUTIONS?

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  • Anonymous Apr 26, 2009

    Exact same thing is happening with my Kitchen Aid microwave. Scared the living **** out of me when I found my micro running at 4 AM! I have contacted the mfr and of course....NO RESPONSE after one week.

  • Anonymous May 25, 2009

    My microwave was beeping on its own. Then I noticed that the key pad had locked on its own. Well it went away and now it's back and incessant! I have unplugged the microwave for fear that it will turn on (it has not done that yet).

  • jyoon181
    jyoon181 Jun 12, 2012

    I have KitchenAid YKHMS2050ss-0 that has exact same problem so I do believe you. Only thing I can't believe is that I will have to fix it out of my pocket since it is out of the warranty period. I really dont think electric control pad something that can "broke" under a normal use (we use it avg 3 to 4 times a week mostly to reheat leftovers). I really think they should responsible for correcting inherent defects and not hide behind their warranty excuses. Shame on KitchenAid and NEVER buying their product ever again. I will tell all my family/friends/coworker/clients about self starting microwave that has mind of its own and their manufactuer that refuses to be responsible.

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You have a shorting membrane 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.

If not, please reply back with your brand and model number so we can help you better.

In many brands there is 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.

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 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.
We're happy to help you. Once we have all your information and offer a final solution, we'd appreciate your thoughtful rating of our answer.

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

Posted on Jan 09, 2009

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  • Contributor
  • 7 Answers

First, do not leave this machine plugged in until it is serviced. If this is a KHMS155LSS, there is a very high probability that you have a keypad short. This defect can cause the machine to start on its own at ANYTIME; at night, while you are away, at work etc.

Contact Whirlpool Customer Service and ask for Safety Dept immediately. They will most likely send A&EMicrowave starts by itself - NO JOKE - 2.gif (Sears) out to fix it. Although they will fix the problem, if the keypad fails again, the underlying self start logic defect is still present. You should be under warranty if it is above model. Please be polite, insistent, but polite. With KitchenAid's pathetic quality in recent years, their customer service reps get more then an earful.

Also, please go to the Consumer Product Safety Commision website at www.cpsc.gov and post a Report Unsafe Products report. This will help get this model recalled before someone loses their home or life.

I almost had a fire this past Monday, Labor Day2.gif, 9/7/09 when my machine self started at 3 AM with a package of bacon left in it to thaw at room temp for the morning. What a smokey mess.

Chinese made garbage. Shame on Whirlpool. Long live Hobart!, please buy back KitchenAid and bring back the lost quality.

Posted on Sep 09, 2009

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My Kitchen Aid of 3.4 yrs did this last week. Local independent dealer where i bought the unit replaced entire touch pad - mother board unit. Not 20 minutes later it did it again. Now, repairman just left puzzled. Wants to take it to shop to "look at." I am going to push for an entire new unit.

Posted on Jul 30, 2009

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Posted on Jan 02, 2017

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http://www.microwavedisplay.com

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