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Posted on Feb 23, 2009

Panasonic Microwave Oven model NN-A883 (inverter) when you switch power on there is a clicking noise comming from the PC board where the mains power comes into the microwave. Front display flashes on/off then displays " refer to manual" it sound like it is trying to switch on

5 Related Answers

MicrowaveSvc

William Miller

  • 9179 Answers
  • Posted on Dec 07, 2007

SOURCE: PANASONIC INVERTER MODEL NN-S76OWF

While your exact model in not available for download, you should be able to find one close enough to work here:

http://panasonic.com.au/support/downloads/file_type_results.cfm?fileTypeID=2&productCategoryID=87

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

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Anonymous

  • 1 Answer
  • Posted on Oct 21, 2008

SOURCE: Panasonic Model No. NN-S933BF Microwave Oven

could it be that i didn't follow the manuel because i got it second hand or is it because something is wrong with it,and i have to get it fixed.

Anonymous

  • 4 Answers
  • Posted on Nov 08, 2008

SOURCE: my microwave says "child" and won't play anymore

Not sure of the TT series models but for the NN series models the procedure is as follows:-

If "Child" is displayed in the display window, then the child safety lock is on.

To remove the child safey lock, press the "Stop/Reset" button 3 times in fairly short succession (less than 3 seconds). The time of day or just the Colon sign (:) is then displayed

If you later want to apply the Child safety lock, then, when the time of day (or colon sign) is displayed, press "Start" 3 times (again in short succession).

Hope this helps

Doug

MicrowaveSvc

William Miller

  • 9179 Answers
  • Posted on Jan 02, 2009

SOURCE: Hi, I have a NN-C784MF

Chances are there are other bad parts blowing the diodes, most likely a MOSFET.

Also, the ESR of the electrolytic capacitors should be checked and all board connections must be checked and resoldered if suspect.

If you're not experienced in troubleshooting switched-mode power supplies (inverters) then you can probably save a lot of timer and money by replacing the whole inverter.

You can find the nearest spare parts supplier by selecting your country then the support links at Panasonic.net.

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

Anonymous

  • 1 Answer
  • Posted on Jul 17, 2009

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

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Either the fuse inside is blown, or the power supply is shot. You can remove the cover of the oven, and look inside at fuse. You can test power supply / inverter with a voltmeter to see if there is power to the main circuit board.
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Purchased a panasonic NN-H965 microwave and yesterday when using it, it started making the following noise: upon starting, the unit works for 3 seconds with funny noises and then it stops. There used to be...

See if this describes what's happening:
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If so, see http://www.microwavedisplay.com/safety.txt , http://www.microwavedisplay.com/disassembly.txt and http://www.microwavedisplay.com/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.

If yours is not a Panasonic, please reply back with your brand and model number so we can help you.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
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Our technician suggest that there may be a problem with the Inverter Board in this model, which is something that would need to be looked at by a Service Center.

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the main control board is "seeingf" a high amprage draw from the inverter board . you have a problem with the inverter or the magntron . parts are more than a new unit . try to stay away from the inverter type , there just not ready for prime time . google "panasonic inverter reviews " and you will see just common your problem is good luck
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