Have a Panasonic NN-A554W88PQ that turns off after exactly one minute every time I use it and it says on the digital display refer to user instructions. Can you tell me the cause and how to fix it.

An "error" message on a Panasonic Dimension 4 Genius model NN-C897WBBPQ microwave oven could indicate a problem with the electronic control system.
It is recommend to try resetting the microwave by unplugging it for a few minutes, then plugging it back in. If the problem persists, you should have the microwave checked by a professional technician.
You can also try to reset the oven by following the steps in the user manual, which typically involves pressing a certain combination of buttons on the control panel.
If the problem is still there, it is advisable to contact the manufacturer or a professional technician for repair. This will help you to get a more accurate diagnosis and a solution to the problem. Depending on the cause of the issue, the cost of repair can vary.
It is important to note that, error messages can be caused by various problems, so it is best to refer to the user manual or contact the manufacturer for more specific troubleshooting steps and to get a more detailed diagnosis of the problem.

https://www.manualslib.com/manual/652153/Panasonic-Dimension4-Nn-C988w.html

FFFF is not mentioned in the user manual, but there may be some helpful information or contact information in it.

PANASONIC Dimension4 NN C988W Operating Manual And Cook Book


This is not certain, but it may be a part that is expensive to replace according to this other web site for a similar model Panasonic oven. That person said their microwave was still working.

https://www.justanswer.com/appliance/6045n-good-day-panasonic-dimension-iii-microwave-convection.html

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Good day, I have a Panasonic Dimension III Microwave/Convection Oven 1983
Model NE-9910A.

I went to use it today and when I entered to nuk my coffee a FFFF display appeared where the clock normally appears. I went and found my operating instruction booklet and it indicated to "stop/reset" which I did. Next it indicates to contact a Panasonic Servicecenter. Can you help me out? ps. It still works great!!!!!

Answered in 1 minute
12/24/2011

FFFF means that your display control board has an internal short. The only way to fix the problem is to replace the display control board which is no longer available. If you really wanted to fix the microwave you'd need to remove the display board and mail it to a place like Appliancetimers.com to have the part refurbished. The cost to have the part repaired is usually about $200-250 or so.

---------------------------------------------------------- Good day have Panasonic Dimension III Microwave Convection

Panasonic Microwave - ConsumerAffairs.com

www.consumeraffairs.com > Homeowners > Microwaves

Rating: 2.6 - ‎53 votes
After looking, door was starting to arc and burn around the edges in three places, ...You can't leave this oven unattended for a minute or you could be calling 911! ... In October 2014 I purchased a Panasonic microwave model NN-SA661S. ... The timeremits "4 beeps" when the time is up; other microwaves, continue to beep ...

[PDF]operating instructions - FTP Directory Listing - Panasonic

ftp://ftp.panasonic.com/microwaveoven/.../nn-sn651_nn-sn661...

PanasonicModels no. nn-sn651b ... nn-sn661s .... Use this appliance only for its intended use as described in this manual. do ... Thank you for purchasing a Panasonic MicrowaveOven. ... you press Start. note: The Glass Tray can turn in either direction. ..... If a pad is pressed and no beep is heard, the unit did not or cannot accept the

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

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. If you're not in the US, see Panasonic.net.

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

The display is part number AEDDHJ5W00AP.

You can order Panasonic parts from Encompass here or you can call them toll-free at 866-779-5835.

At our Web site, we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

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

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

Sounds like the power inverter

I have just had this problem where the oven will only run for 5 seconds and then turns off model #NNS561. Cant find any solution.

my panasonic NN-S561 does exactly the same thing

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:

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