Question about Panasonic NN-T694SF Microwave Oven

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Loud pop and now doesn't work

The microwave was running for 2 minutes on high. There was a loud popping sound. Opened the door and it seemed normal. When the door closed the fan ,turntable and light came on. Could not stop it without unplugging it. When it is plugged back in the fan turntable and light starts immediately, and the display shows the welcome screen. the only button that works is the stop/reset, and when you press it the screen goes blank. Any help would be appreciated

David Ferguson

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  • david622 Oct 20, 2008

    The model is NN-T694SF

    Thank You

    David Ferguson


  • William Miller
    William Miller May 11, 2010

    It sounds like you have a shorted door switch, a damaged door switch mount, or a shorted relay or other component on the control board.

    What is your model number?

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  • Panasonic Master
  • 8,820 Answers

This is usually caused by either a bad door switch, a loose door switch mount (which are pretty simple problems to fix) or occasionally a problem on the control panel.

Door switch or mount trouble can be caused by slamming the door or by opening the door while it's cooking without hitting the Stop pad first.

There are plastic mounts inside the microwave which hold the door switches and onto which the door latches lock when you close the door.

The screws on these mounts may be loose. If they get too loose, the switches will not be activated properly.

Sometimes it's a broken tab on the switch holder, allowing the switch to rotate just out of position. This tab can be hard to see, since it is under the bottom edge of the switch.

If you or someone you know decide to look into it, we have critical information on safety, disassembly and door switches at our site, and our link is at our listing here on FixYa:.

You can order Panasonic parts from Tritronics but if you only need a switch, you can order one from us for $5 postpaid.

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

Posted on Oct 21, 2008

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