Question about Panasonic NN-T994SF Microwave Oven

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The turntable keeps rotating when the door is opened - Panasonic NN-T994SF

The problem that I stated above pretty much explains what is wrong. When the microwave door is opened, the inside light comes on as it should, but the turntable begins turning in a clockwise direction. The turntable will stop turning as soon as I shut the door, at which time the interior light goes off also, as it should. All other functions work just fine including the turntable when a cooking time is selected & the start button is pressed. Any assistance would be greatly appreciated.

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  • Gary Nessel Dec 04, 2012

    I can't think of any better way to explain my problem. My microwave works ok in every respect, EXCEPT that when the unit is sat rest & the only thing on the display is the correct time of day, when I push the 'open door' button, the interior light comes on (as it should), BUT the turntable begins turning. The only way I can get it to stop turning, is to shut the door. If you're still stumped, I guess I'll have to call Panasonic directly. The only thing that I've ever had repaired on the unit, was to have the magnetron replace, but that was over a year ago.

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  • Panasonic Master
  • 9,085 Answers

You probably have a shorted main relay on your control board, which I can repair. Details here.

FixYa doesn't notify me when there's a response, so if you have other questions, please contact me directly.

- William E. Miller, AS-EET
pupista@gmail.com
http://www.microwavecontrol.com
Microwave Oven Control Panel Repair Nationwide
"Recycling by repairing since 1982"

Posted on May 28, 2017

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Illeagle
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SOURCE: Panasonic NN-T994SF 1250 watt countertop microwave stopping

From my research, this sounds like a fairly new model. Consult your user's manual to see if this is a user, or common issue. If nothing is descibed then I would seek possible warranty service, or dealer replacement

Posted on Jun 03, 2008

  • 1 Answer

SOURCE: Panasonic NN-T994SF Microwave Oven quits after 15 seconds

my microwave shuts off after a few seconds. is there a fuse that needs replacing?

Posted on Nov 24, 2010

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The turntable keeps rotating when the dooe is open - Panasonic T994SFR


This is usually caused by either a bad door switch, a loose door switch mount, or occasionally a problem on the control panel.

Even though a door switch clicks, it may still be bad inside. Its continuity must be checked.

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. Other times, 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.

One test that sometimes helps is to gently lift up on the door or handle as you try to start it. If it works or tries to work, then it's a door switch mount or door alignment issue.

We have critical safety & disassembly info (including a how-to video) at our site, linked here.

If you think the problem is on the control panel, we repair these nationwide by mail for $39.95 postpaid in most cases.

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

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Panasonic Microwave Turn table rotates when door is open


Found this Panasonic post in the Samsung section!

If it moves just a tiny bit when the door opens and then stops, that's normal.

If it keeps running when the door is open, that's usually due to a bad door switch or broken / loose door switch mount.

If you or a friend decide to look into it, we have critical safety information, info on door switch diagnosis and replacement, and
disassembly information at our site, linked here on Fixya: http://tinyurl.com/yzjozk

Any Panasonic parts not available locally can be had here: http://www.pasc.panasonic.com/epartr

We appreciate your thoughtful rating of our answer.

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