If
the digital programmer circuit / controller does not get a feedback
signal from the inverter for a period of 3 seconds, the controller will
stop the cook cycle.
It may be as simple as a door switch, but it's usually 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 the high voltage section.
If you were to opt for service, I would recommend that you contact your nearest Panasonic-authorized servicer.
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
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Thank you for your informative post. We went ahead and purchased a new microwave. I did not realize microwave ovens were so dangerous until I read what was posted on this site. That was really helpful since I am a big DIY kind of gal. Thanks again!
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