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My Panasonic microwave does not heat

The turntable turns and all the buttons are working, so what could be the problem?

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  • ?orgr?mur Gu?mundsson Dec 08, 2008

    The serial number is UN 1041404 Panasonic NN 5450B
    THE LIGHT COMES ON AND THE PLATE TURNS-NO ERROR MESSAGE ON THE SCREEN

  • William Miller
    William Miller May 11, 2010

    Does the light come on when it should be cooking?

    Are there any fault codes in the display?

    Please reply back with your model number so we can help you.


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  • Microwave Ovens Master
  • 9,085 Answers

With the symptoms you have, I would most strongly suspect a shorted high voltage rectifier diode or a bad magnetron.

The diode is a fairly cheap fix, and the mag will cost more.

Here are some links you or someone you know can use for test help, but read their safety warnings first:

http://www.gallawa.com/microtech/diode.html (if it's not shorted, it's probably okay)
http://www.gallawa.com/microtech/mag_test.html

Visit here (and click your part of the map) to find Panasonic authorized servicers or spare parts suppliers.

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


Posted on Dec 08, 2008

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1 Answer

Change Motor but turn table does not turning?


test the following steps and fix it. God bless you

Turntable Motor

If the microwave turntable doesn't turn the turntable motor might be worn out. This is a common problem and relatively easy to replace.


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Touchpad and Control Panel

If the microwave turntable doesn't turn the touchpad and control panel might be defective. This is not common. Test the turntable motor first.





Touchpad

If the microwave turntable doesn't turn and the touchpad has a button to turn the turntable on and off the touchpad might be defective. Check the turntable motor first, that is more likely.





User Control and Display Board

If the microwave turntable doesn't turn the turntable motor might be worn out. This is a common problem and relatively easy to replace. If the motor is good, the user control and display board may be defective.




Main Control Board

If the microwave turntable doesn't turn the turntable motor is usually the problem. If the motor is good the main control board might be defective

Jun 16, 2013 | Microwave Ovens

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The turntable does not turn , it is a new microwave


Look on the front panel where the control buttons are. There should be a button that reads; 'Turntable'.
This is to turn your turntable on and off. It probable is turned off.

Jun 19, 2011 | Microwave Ovens

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We have a JVM 1443bk02 ge microwave. Today the turntable stopped working. You can depress the key pad on/off button but that makes no difference for the turntable. How do you test to make sure it is the...


The problem with the turntable could be the following:
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  2. If that is ok, check to see if the belt is loose or broken.
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Jan 03, 2010 | GE Spacemaker JVM1640SJ Microwave Oven

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Turntable won't turn


Look at the front panel, at the bottom, in the middle.
Identify the button labeled "Turntable On/Off".
Push it.
Slap yourself on the forehead.
Next time you fumble to turn of the light in the dark, push the right button.

Dec 05, 2009 | LG LMV1630ST Microwave Oven

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Microwave turntable doesn't turn. Everything else


The turntable system typically consists of the motor, the coupler, the turntable support with rollers, and the tray.

Here is a video of how a turntable motor should sound when you rotate it by hand.

If yours is not set to be off via the control panel, and it won't rotate or it sounds like it's grinding, etc., you may have a bad motor or plastic coupler.

To replace either, you need to unplug power, then remove the bottom cover of the oven.

You can find links to helpful exploded view diagrams and part ordering help here.

But if you've recently had trouble with the cooktop lights, then the control board may be damaged.

We regularly repair these control units for customers nationwide by mail for $39.95 postpaid in about a week or so with a one-year guarantee.

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

Nov 28, 2009 | Frigidaire Microwave Ovens

1 Answer

Turntable will not turn


If everything works, light and micro heating.. then I have 4 possibles for you to check... 1st make sure you don't have a button that allow you to turn the turntable on/off... 2nd take the glass table out and check the center plastic spinner(pull it out) and see if its broken. 3rd your turntable motor is bad, and 4th the relay for your turntable on control board is bad... helpfully that will do it for ya.. good luck.. mike

Dec 20, 2008 | Kenmore 62622 Microwave Oven

1 Answer

Turntable does not work


If the rest of the oven works fine, then this indicates that you might have a problem with the motor that turns the turntable.

If you try to turn the turntable manually (gently), does it turn freely or is there resistance? If it turns freely, the mechanical mechanism between the turntable and motor may be broken and the motor may be ok.

The oven's microprocessor also controlls the motor. There could be a problem there.

You'll need to have it looked at by a service center. Although its not that difficult to determine which of the reasons I mentioned above is the cause, it can be however, dangerous to operate a microwave oven with the cover off and with high voltage circuits exposed.

Please let me know if I can be of further assistance to you.

Good luck!
- Jim

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Microwave turntable won't turn


You will have to take it out and then take off the outer cover to expose the drive system for the turntable unless the items turns with the turntable removed. If it does then (and if it is belt driven) the belt may be worn and slipping. Anyway you look at it the cover has to come off to see what is happening.

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