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Panasonic microwave NN-ST657S H97 is displayed

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  • eejpcepp Oct 05, 2008

    Panasonic microwave NN-ST657S H97 is displayed

  • Anonymous Nov 08, 2008

    Panosonic over-the-range microware NN-P295W

    The Operating Instructions boolet indicates this is a problem with the microwave generation system - contact an authorized Service Center

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3 Suggested Answers

robotek
  • 1512 Answers

SOURCE: h97

Hi there..

If it is displaying error H97, this means that the invertor(power supply Panasonic part number: Z606YM300BP,) is not functioning. The magnatron may also be faulty.

You can get a new invertor on ebay.UK from here


Here is some more information about the part. The microwave may also have a faulty magnatron. If you are unsure, then you should get someone to look at the unit for you before you go buying parts.

BEWARE... VOLTAGES INSIDE MICROWAVES CAN KILL

Panasonic part number: Z606YM300BP, supersedes all previous versions of the inverter used with the 2M261-M32J This Inverter is now available at a lower cost, it used to be £60.00 plus VAT and delivery trade price.
This inverter is fitted to many of the more recent Panasonic inverter type microwaves such as the NNC596S .Some microwaves such as Bosch and Siemens also use this inverter as they are rebranded Panasonic ovens. These ovens are upmarket models, some include advanced functions such as steaming and are normally well worth repairing.
The inverter as fitted to earlier ovens with the 2M236-M42 and 2M236-M1 is also available.

An inverter microwave oven is one without a high voltage transformer You will know you have one as it is not extremely heavy at one end. This type of microwave uses a high power DC converter, called an inverter, to produce the high voltage and filament voltage required by the magnetron.
If you purchase this item for replacement in your microwave then we recommend that you do this only if you are qualified and aware of the dangers of tampering with electrical equipment.
Failure of the magnetron is common and at times the inverter can fail as well. Sometimes the inverter fails on it's own. If your microwave blows the 10 amp mains input fuse as the cooking cycle starts then you probably need a new inverter. An instruction sheet with basic guidelines on fitting will be provided but please do not purchase this item unless you are confident about fitting it. We only accept returns if the inverter supplied is defective which is extremely unlikely.
If you have one of these ovens that is not cooking then it is worthwhile looking at the magnetron. It often shows signs of distress through overheating.

As well as the inverter failing it is also possible you could also have a defective magnetron,

Good luck and thanks for using FixYa

A FixYa rating would be spot on for this information to you.


regards
robotek

Posted on May 07, 2008

  • 8909 Answers

SOURCE: My Panasonic NN-ST657W microwave has

This oven is programmed with a self diagnostics failure code system which will help for troubleshooting, H97, H98 and H99 are the provided failure magnetron and inverter circuit problem areas. This section explains failure codes of H97, H98 and H99. H97, H98 and H99 appears in display window a short time after start key is pressed and there is no microwave oscillation.
There is not a lot the layman can do except maybe to try a new magnetron.
It is a job for an experienced Panasonic Microwave repair man.

Posted on Dec 31, 2010

Testimonial: "That's what I was dreading. Might be cheaper to buy a new microwave than to have a new magnetron put in... sucks only 3 yrs old. Thanks anyway."

MicrowaveSvc
  • 8820 Answers

SOURCE: panasonic microwave no working at all

H95, H97, H98 or H99 mean that there's a problem with your inverter, magnetron, or digital programming circuit.

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

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.

Posted on Dec 28, 2008

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This oven is programmed with a self diagnostics failure code system which will help for troubleshooting, H97, H98 and H99 are the provided failure magnetron and inverter circuit problem areas. This section explains failure codes of H97, H98 and H99. H97, H98 and H99 appears in display window a short time after start key is pressed and there is no microwave oscillation.


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WARNING :

The microwave is capable of giving you a serious electrical shock even when it's unplugged , so I recommend you to call a repair technician for help .

please don't forget to rate .

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2 Answers

H97


H97 is a problem with the inverter, bad magnetron or control panel.

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:

http://www2.panasonic.com/webapp/wcs/stores/servlet/vServiceLocator?storeId=15001

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

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