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Why does turntable rotate with door open?

Microwave heats properly but turntable continues to rotate when the door is opened and makes a grinding noise.

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The door switch could be stuck in the closed/on position. The electronic circuits could be malfunctioning. When the door is open, I sure hope than the microwaves cooking are not "ON". That could result in a very dangerous situation for you.

Posted on Dec 05, 2015

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6 Suggested Answers

6ya6ya
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SOURCE:

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Posted on Jan 02, 2017

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MicrowaveSvc
  • 9174 Answers

SOURCE: when I open my microwave door, it starts running

.
In most cases, it's not actually cooking, but instead the fan, turtable and light may be on. Yet it does need attention.

What this usually means is that you have a shorted door switch or a bad door switch mount.

It's easy to tell if it's actually cooking, just place a cup of water inside and see if it heats.

If so, that could mean a stuck relay on the control board. If so, we repair these for customers nationwide with our guaranteed $39.95 service. Far less than a new board.

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

Please write back with more details if you need further help.

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

Posted on Nov 26, 2007

MicrowaveSvc
  • 9174 Answers

SOURCE: 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.

Posted on Nov 17, 2007

MicrowaveSvc
  • 9174 Answers

SOURCE: Microwave runs with door open

I would say you have a failing door switch or the mount which holds your door switch is loose or broken. In most designs, it is the upper door switch that will produce these very symptoms when it is intermittent or its mount is broken or loose. Opening the door while cooking (without first hitting the STOP pad) is the primary cause of door switch failure. Slamming the door, damage during shipping or transportation and sloppy manufacturing techniques or materials are the primary causes of trouble with the door switch mounts. If you or a friend decide to work on it, we have *critical* safety, disassembly, and troubleshooting info (as well as a text file which helps in diagnosing and repairing door switch problems) at our site, which is linked at our listing here on FixYa: http://tinyurl.com/yzjozk

Posted on Sep 22, 2007

CrazyLarry
  • 173 Answers

SOURCE: My microwave continues to run, (turntable and exhaust), when the door is opened.

all microwaves have 2 safety switches at least... but these are tied to a set of relays that turn it on, my bet is a sticking or stuck relay because you unplug it right and plug back in its not running?-relay ... if always runs driver transitors.

Posted on Jan 19, 2008

MicrowaveSvc
  • 9174 Answers

SOURCE: 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.

Posted on Jul 19, 2008

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