20 Most Recent Panasonic NN-P794SF Microwave Oven - Page 9 Questions & Answers

-Time for new one.

Good luck and enjoy


Panasonic... | Answered on Jun 13, 2018


Unsure if this is the same model or not. It is a free download from a reputable web site.

Please let us know if not, and internet searches may find another.

PANASONIC Dimension4 NN C988W Operating Manual And Cook Book

Panasonic... | Answered on Jun 10, 2018

F09 means that it's running on the wrong power frequency.

Is this a model designed for a different country than the one you're using it in?

Does your owner's manual show a way to select a different power frequency?

If for some reason you don't have your owner's manual, see Panasonic.net for support.

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

Panasonic... | Answered on Jun 08, 2018

Press and hold the time button and the screen will change, if it doesn't, replace the control board.

Panasonic... | Answered on Jun 07, 2018


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.


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

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... | Answered on May 11, 2018

Press clock,use minute and second buttons to set time press start.

Panasonic... | Answered on May 04, 2018

on Panasonic must set time of day first before it will let you program for cook time

Panasonic... | Answered on Apr 19, 2018

either bad magnetron or inveter or both, better to replace unit expensive repair

Panasonic... | Answered on Apr 19, 2018

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