My Panasonic Microwave NN-T573SBBPQ seems to have a problem.Sometimes the turntable wouldn't work then other times it was ok. But just recently the bulb stays on and the turntable tries turning one way for a second then the other way for a second continuously. Is the circuit board to blame? Joe Gallo (Frome)

William Miller

• 9179 Answers
• Posted on Aug 02, 2008

SOURCE: my panansonic microwave NN-T573SBBPQ works

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.

In most cases, this is a problem with the inverter or a bad magnetron.

Due to the lethal voltages used and produced, I do not recommend that an inexperienced person work on these.

I would recommend that you contact your nearest Panasonic-authorized servicer.

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

SOURCE: My Panasonic Microwave NN-T573SBBPQ cuts out after

This sounds like a magnetron problem, if it gets to hot, there is a special thermal fuse that will open up if it senses abnormal temperature rise from the magnetron and after a cool down period it will reset itself. In rare cases I have known the thermal fuse to become defective and cut out prematurely. My feeling is replace the oven! because by the time you get a appliance repairman in for a sevice call and parts you probably could have bought a new microwave oven.