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Panasonic Microwave NN-SD277 stops in 3 secs?

No matter what time or power setting, it stops in 3 seconds of pressing the start button. Does not display any error codes. This is a Genius series over-the-range model with 1100W cooking power.
Kaiser, April 2008
Blown inverter board. Mine has gone twice in 4 years. Piece of junk!

Pete, April 2014
Check to make sure that you didn't jar the control panel. When lifted from underneath the panel can unhinge itself, make sure it's secured tightly. You might have to take the vent gill off to accomplish this.

fastball, July 2008
link Click here to see other fixes for Panasonic.