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.
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Good day have Panasonic Dimension III Microwave Convection
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