Question about Panasonic NN-S933BF Microwave Oven

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Turns on with door open

Hello, we own a panasonic Invertor serial# 6A23280963 model# NN-S933BF Our microwave is turning on with the door open. It runs fine other than that. Presently we are having to unplug it to place our stuff in the oven. Then we plug it back in so we can run it. We just need to know how to reset the computer inside it so it will not run when we open the microwave oven door. Thank you for your assistance. Maria Stephenson

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  • unicorns99 May 07, 2009

    Panasonic NN-S933BF turns on when door is opened. works normaly otherwise

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  • Panasonic Master
  • 9,098 Answers

It's likely that it's only the fan and light coming on when the door is open. But even so, it's not normal, and it should be fixed. It's not a reset issue. It's likely a broken door switch mount caused by a door slam or by inferior material, or a defective door switch caused by opening the door while the oven is cooking instead of hitting the "STOP" key first. You can do a Google search for my text file "doorsw.txt" which will give safety info and help in checking the door switches. Also, the plastic pieces on which the door switches are mounted should be checked, as well as the door alignment. It's usually the upper door switch or mount that causes this, but occasioanlly it's a problem on the control circuit board. Post again if more help is needed.

Posted on Oct 25, 2006

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