Hello:

Have a Panasonic Microwave purchased in '98.

Model is MMN-S768.

Lately, it won't heat anymore, usually, and what I guess is a
code appears on the display: "H98"

About 25 % of the time, though, it does work.

Any idea what this code signifies ?

What's a typical lifetime for something like this ?

Any thoughts would be most appreciated.

Thanks,
Bob