Question about Panasonic NN-S954WF Microwave Oven

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My panasonic NN-S954WF smells when I start it.

The part inside that looks like it has a coil on it smells like it is burning

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If you are talking about the transformer then it will need replacing , because it is about to quit on you and then the microwave will not work at all
are you going to do the repair yourself? or are you going to need to take it to a qualified service shop?

Posted on Nov 27, 2008

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Hi my oven suddenly started making loud weird noises and now does not heat any food. I smell smoke. What might be wrong?


Seems to me that your magnetron is a goner, check also the antenna shield, cover inside the oven cavity and replace both, you may need to clean and repaint burn surfaces inside oven cavity.

Jan 08, 2016 | Panasonic NN-S676BA Microwave Oven

1 Answer

My panasonic microwave NN-S954WF will run a few seconds and then stop. What should I check?


If it 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.

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

If it stops after 7 seconds, it has a problem with the inverter.

If it stops at 2-3 seconds, see if this describes what's happening:
  • Put in time, push start and unit runs for 2 seconds, relay clicks, unit goes off. Cook time on display goes off and clock time comes back. Bad upper interlock switch and charred connector
If so, see http://031d26d.namesecurehost.com/mwd/safety.txt http://031d26d.namesecurehost.com/mwd/disassembly.txt http://031d26d.namesecurehost.com/mwd/doorsw.txt

Otherwise, if the digital programmer circuit / controller does not get a feedback signal from the inverter for a period of 3 seconds, the controller will stop the cook cycle.

It may be a loose connection in the wiring between the inverter, magnetron, and/or control board, or maybe one of those components has failed.


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 16, 2011 | Panasonic NN-S954WF Microwave Oven

1 Answer

When I turn on it snaps and smells burnt


your plug wire is loose from inside microwafe tighten it.

Mar 01, 2011 | Panasonic NN-S954WF Microwave Oven

1 Answer

Panasonic NN-T785SF microwave smoking and popping


Not to worry ,Please use a good torch light or lamp to look inside the microwave cabin. On the side where the magnetron is fixed look for any food particles which could have stuck while heating. Use a good cleaning solvent to do this job. You must remove all the roller and plates and clean dry. Once you have done this open the top cabinet with the mains wires disconnected. Look inside the side panels for dirt, insect which have got entangled and cooked. use a good brush and blower to clean dry. If the main capacitor has leaked replace with a similar type. Get help if you are not able to do this as it is a dangeorus section with high voltage. You will get to the smelling part once you had inspected these areas. Replace the part in question, can be even the surge protector at the mains end. Hope this helps. Good day

Jul 19, 2010 | Panasonic Microwave Ovens

1 Answer

The microwave does not heat up and shuts down suddenly


Hi,
Here is a tip that will help you to figure out what is wrong with yourMicrowave Oven....

Microwave Oven Basic Troubleshooting Tips

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Nov 18, 2009 | Panasonic NN-S954WF Microwave Oven

1 Answer

My microwave nn-994s smell burning and is working 50% power panasonic model nn-994s


Due to the lethal voltages used and produced in inverter-based, 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.


Aug 19, 2009 | Panasonic Microwave Ovens

1 Answer

NECESITO PORFAVOR EL MANUAL DE USO DEL MODELO, NN-ST657W


Si sabía el problema que podría asistirle mejor así que debo conjeturar: Ninguìn calor: maìn magnetrón, fusible soplado, maìn diodo del condensador, abierto o puesto en cortocircuito. Si sopla el triturador es probablemente un maìn magnetrón. si simplemente ninguìn calor es probaby el diodo y el condensador.

May 17, 2009 | Panasonic NN-S954WF Microwave Oven

1 Answer

Panasonic nn-sn667b 1300w dead


You might consider just replacing the inverter assembly itself.

It will cost more than replacing the bad discrete components of course, but you would be avoiding the time and money involved in parts research, trial and error, and possible destruction of any newly installed parts if there remain other undiscovered defective components.

The inverter assembly (part # F606Y8M00AP) can be had for $79.12 here.

Otherwise, you would need to order the service manual, which is not listed by the major Panasonic distributors.

The service manual should be # SM-NNSN667.

The best place to order Sharp parts is Tritronics. Or you can call them toll-free at 866-779-5835.

In this case, call might be more productive to track down the service manual.

Good luck, and be safe.

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

Dec 24, 2008 | Panasonic NN-S954WF Microwave Oven

1 Answer

When I press the start button it smells like it is burning


if the is a convection model then the covection coill will smell that way if there is a geese build up and should be ok to use. however you should only smell that if you are using the convection mode.

Nov 27, 2008 | Panasonic NN-S954WF Microwave Oven

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