Question about Panasonic Microwave Ovens

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Hi..I have a Panasonic NNV672 Inverter microwave oven. It is about 9 years old. When I start the operation it goes for about 22 seconds and then switches itself off. It seems to do this whatever setting it is on.

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

MicrowaveSvc
  • 9047 Answers

SOURCE: Panasonic microwave 1200

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. 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 with him when he comes out to repair it. Might save you having it pulled into the shop. Good luck!

Posted on Sep 22, 2007

  • 1 Answer

SOURCE: PANASONIC INVERTER MICROWAVE, 1300 WATTS

  1. Same exact problem
  2. I've noted 3 different ones with the same problem
  3. Panasonic has produced a lemon, north fixing

Posted on Apr 11, 2008

MicrowaveSvc
  • 9047 Answers

SOURCE: panasonic inverter dimension 4 microwave

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, I do not recommend that an inexperienced person work on these.

I would recommend that you contact your nearest Panasonic-authorized servicer.

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

Posted on Sep 06, 2008

MicrowaveSvc
  • 9047 Answers

SOURCE: 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.

Posted on Oct 22, 2008

  • 1 Answer

SOURCE: Panasonic Microwave NN-A770S getting hot on right side externally

Is it normal for a Panasonic nn-c994s to cycle the fan/inverter
when using combination cook?
16 sec off 6 sec on.
Everything else seems to be working
light, timer counting down, heating food, turntable turning

Posted on Jul 17, 2009

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1 Answer

Microwave stops after 22 seconds


Not sure what the problem is but I have exactly the same fault with mine. Apparently it's either going to be the inverter, the magatron or both. Cost approx £120 inc callout.

My advice: Get a new one!

Feb 19, 2010 | Panasonic Microwave Ovens

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your mag has gone bad and possible that the inverter board as well, not really worth the hassel

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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

Panasonic Microwave Problem


Even though these are different symptoms, the same part may be causing both.

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.

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, 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.

Sep 22, 2008 | GE Spacemaker JVM1640SJ Microwave Oven

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Model 72180883400


Hi,
F-9 error code indicates a defective control board, inverter or line voltage too high. f the microwave runs for about 7 seconds with a ticking sound..then stops and shows "F-9", it is the magnetron that has failed. The fact that the unit starts and runs with the TICKING SOUND means the control board is sending signal to inverter board and the inverter board is sending signal to magnetron. Magnetron is covered by full 5 year warranty, inverter board is only 3 years.

Sep 01, 2008 | Kenmore 62702 Microwave Oven

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Hi there, I have a panasonic microwave which is a few years old now. The problem is that it goes for about 20 secs then stops, the display returns to the time and the light in the microwave goes out....


22 seconds is the giveaway.

In most cases, this is a problem with the inverter or a bad magnetron.

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

I would recommend that you contact your nearest Panasonic-authorized servicer.

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

Jul 30, 2008 | Microwave Ovens

1 Answer

Panasonic NN- A712 combination Microwave 1000w - Switches off after 20 seconds


The 22 seconds is the giveaway.

In most cases, this is a problem with the inverter or a bad magnetron.

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

I would recommend that you contact your nearest Panasonic-authorized servicer.

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

Jul 14, 2008 | Panasonic NN-S753 Microwave Oven

2 Answers

Micro wave operates for a few seconds then shuts down, light goes out, but fan continues to work


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.

The oven will also strop after 22 seconds if there are certain problems with the inverter or magnetron.

In most cases, this is a problem with the inverter or a bad magnetron.

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

I would recommend that you contact your nearest Panasonic-authorized servicer.

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

Jul 13, 2008 | Panasonic Microwave Ovens

1 Answer

Runs for 30 seconds then goes off. No heating


Is it 30 seconds or 22 seconds?

The 22 seconds is the giveaway.

In most cases, this is a problem with the inverter or a bad magnetron.

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

I would recommend that you contact your nearest Panasonic-authorized servicer. You can find one here.

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

Jul 04, 2008 | Panasonic NN-S254BF Microwave Oven

1 Answer

1200w Genius microwave, about 4 years old. Has been working no problem until today. When I press start, its starts ok but cuts out after 23 seconds. It does this on every setting.


The 22 seconds is the giveaway. In most cases, this is a problem with the inverter or a bad magnetron.

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

I would recommend that you contact your nearest Panasonic-authorized servicer. You can find one here.

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

May 20, 2008 | Panasonic Microwave Ovens

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