Question about Panasonic NN-S963BF Microwave Oven

1 Answer

Stops working after 38 seconds

My microwave shuts off after 38 seconds. Even during the 38 seconds, there is no heating of anything in the microwave. I have not tried any fixes yet.

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  • carin82 Jul 17, 2008

    carina torres stops after 30 seconds on those 30 seconds there is no heat

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  • Panasonic Master
  • 9,098 Answers

This model uses an inverter to produce high voltage. That symptom is an usually indication of a problem with the inverter or a bad magnetron. Due to the lethal voltages involved, I do not recommend that a person without training and experience ever work on these models. You should be able to locate a Panasonic-authorized servicer here: http://www.pasc.panasonic.com/WhereTo/FindServicer.asp?Pass=1 I would mention the exact symptom when you call so the technician can bring a new inverter or magnetron with him when he comes out to repair it. Might save you having it pulled into the shop.

Posted on May 10, 2007

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Posted on Jan 02, 2017

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1 Answer

NN-T563 shuts off after 5 seconds


We recommend you use the below link to locate an authorized service center. Panasonic microwaves have a 5 year warranty on the microwave.

www.panasonic.com/repair

Apr 12, 2014 | Panasonic NN-S563 Microwave Oven

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GE spacemaker microwave turns off during cooking and display goes black


Step 1:


Door Switch




If the microwave runs for a few seconds and then shuts off, a door switch might have failed intermittently. Check each of the door switches for any signs of overheating, arcing, or burning. Also check each of them for continuity. Replace any of the switches that is visibly damaged or that only has continuity intermittently


mwswitchtest2.jpg

Step 2:

Main Control Board




If the microwave runs for a few seconds and stops there may be a short circuit in the main control board. Check other components first, these boards are often misdiagnosed.


Touchpad and Control Panel




If the microwave runs for a few seconds and stops the touchpad and control panel might be defective. There are several other components that can cause this problem, be sure to check any other components before replacing this board.

Touchpad




If the microwave runs for a few seconds and stops the touchpad might be at fault. This is not common. Generally speaking, if the microwave display is working and some of the buttons respond correctly but some don't, the problem is with the touchpad.

High Voltage Transformer




If the microwave runs for a few seconds and stops the high voltage transformer might have an intermittent short. This is not common. Check other components related to the microwave symptom first.

Thermostat




If the microwave runs for a few seconds and stops the thermostat might be defective. Watch our video on testing thermostat

Step 3:

2_8_2013_11_35_08_am.gif2_8_2013_11_35_30_am.jpg

Step 4:

2_8_2013_11_36_20_am.jpg

Step 5:

2_8_2013_11_37_03_am.jpg

Step 6:

use the DVOM tester and fix it. God bless you

Feb 08, 2013 | Microwave Ovens

1 Answer

I have a Siemens microwave (inno-wave). When I try to cook something, say I set it to cook for 2 minutes, after 23 seconds it stops and reverts back to the digital display clock. It seems clear during that...


The controller is probably sensing that the magnetron is not drawing current and shutting down the timer.

The magnetron may have either failed or is not being supplied with the extremely high voltage required to run it.
Make sure the !!!!capacitor is discharged!!!!! before attempting any sort of repair.
Check the door interlock switches first then the high voltage diode with either an AVO model 8 on high resistance range for short circuit, the feed fuse on the primary of the high voltage transformer and then finally, the magnetron is best checked by substitution.
Hope that helps.

Nov 21, 2010 | Siemens Microwave Ovens

1 Answer

It wont heat anything and shuts off after 38 seconds on all options


Hi,


Here is a tip that will help you to figure out what is wrong with your Microwave Oven....

Microwave Oven Basic Troubleshooting Tips

heatman101

Nov 14, 2010 | Panasonic NN-H275 Microwave Oven

1 Answer

My GE microwave will only run for 21 seconds and then it shuts off. Even if I try to heat something by running it for 21 seconds multiple times, it doesn't get anything warm.


I've heard of this is Panasonic microwaves but not in GEs.

To allow us to help you effectively (at no charge), please post a NEW problem to FixYa, and please include your brand name and the full model number from the tag in or on the unit, as well your symptoms "only run for 21 seconds and then it shuts off".


For those readers with a a Panasonic that stops after 22 seconds, that means the controller has detected a problem, usually a problem with the inverter, controller, magnetron, or a bad connection from one or the other.

Due to the lethal voltages used and produced in inverters, I do not recommend that an inexperienced person work on these.

You can find an authorized Panasonic servicer here.

In Canada, you can find an authorized Panasonic servicer here.

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

Nov 27, 2009 | GE Profile 1.5 Cu. Ft. Mid-Size Microwave...

1 Answer

Panasonic Microwave only works for 37 secs no matter what time setting


If it stops after 22 seconds, that means the controller has detected a problem, usually a problem with the inverter or a bad magnetron.

Due to the lethal voltages used and produced in inverters, I do not recommend that an inexperienced person work on these.

You can find an authorized Panasonic servicer here.

In Canada, you can find an authorized Panasonic servicer here.

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

Jan 04, 2009 | Microwave Ovens

1 Answer

Oven won't heat and shuts down after approx. 20 seconds


If it stops after 22 seconds, that means the controller has detected a problem, usually a problem with the inverter or a bad magnetron.

Due to the lethal voltages used and produced in inverters, I do not recommend that an inexperienced person work on these.

You can find an authorized Panasonic servicer here.


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

Dec 18, 2008 | Panasonic NN-S763BF Microwave Oven

1 Answer

Panasonic Microwave Oven Stops After 15 seconds - Never Heats


If it stops at 16 seconds and is a sensor model, it probably has a defective humidity sensor.

You can order Panasonic parts from Tritronics.

If you reconsider, you can find an authorized Panasonic servicer here.

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

Oct 21, 2008 | Microwave Ovens

9 Answers

Magic Chef MCO153UW


The cooling fan is a must!

Otherwise, the magnetron will be ruined, and that drives up the repair cost.

If you or a friend decide to work on it, we have *critical* safety, disassembly, and troubleshooting info at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

You can order parts here: https://www.mcappliance.com/partorder.aspx

To contact Magic Chef about getting an *authorized* servicer, see: http://www.mcappliance.com/contactus/contactus.asp

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

Jan 06, 2008 | Magic Chef CMV1000B Microwave Oven

1 Answer

My microwave runs for 30 seconds and stops


It could be shutting off because of the heat sensor on the magnatron is over heating because of a bad capacitor or diode or the power transformer its self. This is a call for the service man BUT you know these days a microwave like this cost a couple of hundred bucks maybe a little more too. But it will possibly cost 150 or so if not more to fix the average microwave. If you really like it, then see if you can have it estimated BUT its not for the handy man to try to trouble shoot as theres extremly high voltage in these puppys even when they are not plugged in!! Good luck

Jun 08, 2006 | Panasonic NN-P794BF 1250 Watts Microwave...

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