Question about Panasonic NN-T888S Convection/Microwave Oven

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Panasonic Microwave Dimension 4 convection (11 yrs old)

Thanks in advance. My microwave is only operating on DEMO mode. We tried to change the clock for daylight savings and it went into DEMO. Can't seem to figure out how to change this. The unit is built-in so I don't want to take it out and unplug if I don't have to.

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  • gloria gloria Mar 13, 2007

    THANK YOU!!
    It works. Why didn't I think of that.

  • Carole Aug 03, 2008

    My Dimension is taking AGES to defrost anything and a lot longer to cook anything. It gets there in the end but something is wrong.

  • Anonymous Oct 22, 2008

    how to unlock a national dimension 4 microwave ? accidently locked it =(

  • Anonymous Dec 01, 2008

    I cannot get it to start, it says "set time2 and then works once but stops and resets again

  • paulyboy11 Dec 21, 2008

    i have a nn 880 1v dimension 4 microwave convection oven in my motor home. when i reset ia cannot go to any other mode clock cook timer, nothing any help out there

    paul bernard

    puristgolf@cox.net

  • pziddy Mar 17, 2009

    hello there. I have a model that is a couple years older(1996), also stuck in demo mode and the 0-2 does not seem to work.



    panasonic dimension 4 NN-9854

  • valerie Jul 28, 2013

    Can anyone please tell me the dimensions of the Panasonic Genius 2 which is about 20 years old?

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You need to press clock 3 times, then start 3 times and then clear/reset 3 times. Then you can reset the clock by pressing clock 1 change the time and press clock again.

Posted on Oct 25, 2010

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National Microwave Dimension 4 convection : The Start Button on the keyboard is not working it is inactivated - i,have to replace all the board or it,s possible to change only the start button switch??

Posted on Aug 27, 2010

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Pressing Function 0 1 turns on demo mode, and Function 0 2 turns it off. Function 5 1 turns on the child lock, and Function 5 2 unlocks it. You can download a copy of your owner's manual here: http://service.us.panasonic.com/OPERMANPDF/NNT888S.PDF If you do not have the Acrobat Reader on your computer, you can download it free here: www.adobe.com/products/acrobat/readstep2.html Others reading this who have a different model can try substituting their own model number for the "NNT888S" above, and try it with and without the model suffix ("B" in this case). Or just visit http://service.us.panasonic.com/OperMan/

Posted on Mar 12, 2007

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Just looking at reviews for Panasonic genius dimension 4 microwaves. It would be my third one since 1984 (changed in 1996 and 2010). They have never broken down. I had to give them away to buy a newer model because I was renovating. A true and incredible product. Store clerks tell me it's the best convestion microwave on the market...Too bad they do not have built-ins.

Posted on Apr 12, 2010

  • LEE6484 Aug 27, 2012

    They do. I have the NN-9859 installed with trim kit NN-TK909

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Kan je ook bakken in deze microwave en hoe doe je dat

Posted on Jul 04, 2011

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My Panasonic genius 1250w shows DEMO on screen and does not respond to settings


"DEMO MODE" is a tool intended for in-store demonstration of the microwave oven to the consumer.
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The owner's manual (which can be downloaded here) doesn't show any demo mode, but it may exist.

The first thing I would suggest is a hard reset. Unplug the unit for a minute or so. Then plug it back in, set the clock and try again.

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

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