Question about Panasonic NN-S963BF Microwave Oven

2 Answers

My nn-s963bf starts operating when door is opened

Without setting power or cook timer our microwave begins to operate when we open the door. It immediately stops when the door is closed. Also seems to heat food fine when. Any ideas on how to fix? Just started after owning for 10 years

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  • Master
  • 2,113 Answers

It sounds like a relay is stuck. I tap the relays with the back of a screwdriver firmly to release them. The door switches should prevent anything from working with the door open under all circumstances so it seems like it could have been designed better.

Posted on Nov 24, 2013

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  • Panasonic Master
  • 12,962 Answers

The electronics have lost their marbles. When a nuker door is opened the safety switch connected to the door is designed to turn the unit off and not on. You just better work fast when you put stuff in or take it out!!!!!!!

Posted on Nov 24, 2013

  • mikadot
    mikadot Nov 24, 2013

    It sounds like a relay is stuck. I tap the relays with the back of a screwdriver firmly to release them. The door switches should prevent anything from working with the door open under all circumstances so it seems like it coulc have been designed better.

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Posted on Jan 02, 2017

MicrowaveSvc
  • 9047 Answers

SOURCE: panasonic microwave nn-s963bf making grinding noise

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

You can see and hear 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
order parts for this brand from Encompass (formerly Tritronics). Or you can call them toll-free at 866-779-5835.

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

Posted on Mar 06, 2009

MicrowaveSvc
  • 9047 Answers

SOURCE: Have had Panasonic microwave NN-S753 several

Thanks for that ID number. That's a big help.

Now, looking at the schematic, it's clear that you would have a shorted primary latch switch (top door switch) or that switch's mount is damaged.

For safety, disassembly and diagnosis of door switch trouble, see my generic files:

http://www.microwavedisplay.com/safety.txt
http://www.microwavedisplay.com/disassembly.txt
http://www.microwavedisplay.com/doorsw.txt

If a switch is all you need, we offer a universal type for only $5 postpaid which you can order here.

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

Posted on Mar 17, 2009

localwonder
  • 6784 Answers

SOURCE: Microwave will not heat food. punch in heating time, press start and nothing happens

HI. your control board has failed. you will need to replace the control board asap if possible.

Posted on Jun 01, 2009

techman007
  • 1112 Answers

SOURCE: We own a Panasonic 1100

HI:
You have a faulty door switch, the unit is not supposed to come on when the door is opened only the light.This unit may require servicing as the control board may also be at fault.

Posted on Dec 24, 2010

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Check whether there is a proper power supply. Look to see whether the cord is connected to a grounded 3-prong outlet and the cord is fully plugged in. If the electrical system is built-in and no power cord is visible, replace or reset the household fuse or circuit breaker.

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Some basic microwave operational steps may affect whether the microwave is heating. Open and close the microwave door, as the unit will not function with the door open, and push "Stop/Clear" to cancel any previous settings, such as the timer, which do not heat the microwave oven.

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Once the power to the microwave has been reset, or verified as working, and the microwave is ready to run, select a new cook cycle and press "Start" to see if the microwave begins to run and cook food as expected. Allow the food to cook for the alloted time and then open the microwave door and check to see if the food has cooked or heated. Choose a longer cooking time and restart the microwave if food is heating but is cooking slowly.

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Panasonic microwave nn-s963bf making grinding noise


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

You can see and hear 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
order parts for this brand from Encompass (formerly Tritronics). Or you can call them toll-free at 866-779-5835.

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

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This is usually caused by either a bad door switch, a loose door switch mount, or 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.

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: http://tinyurl.com/yzjozk

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 and we appreciate your thoughtful rating of our answer.

William E. Miller, AS-EET
prototech@usa.net
http://www.microwavedisplay.com

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

Even though a door switch clicks, it may still be bad inside.

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.

If you or a friend 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: http://tinyurl.com/yzjozk

You can find helpful exploded view diagrams and order parts by entering your full model number here: http://tinyurl.com/gv383

If you think the problem is on the control panel, which we repair these nationwide for $39.95 postpaid.

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

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