Question about Panasonic NN-T990SA Microwave Oven
I set the time it runs for a couple of seconds and shuts off. A strange "burnt plastic" odor can be detected. especially from the rear vent.
In most cases, this is a problem with the inverter but it may be 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. You can find one here:
We're happy to help and we appreciate your thoughtful rating of our answer.
Posted on Dec 07, 2007
SOURCE: Shuts off after 23 seconds....
In most cases when the microwave stops @ 23 seconds it's the Magnetron which has failed, and is shorting to earth.
Either that or the magnetron isn't getting the right signal from the inverter board. It gives it 20 seconds to get the right signal or it shuts itself off.
Posted on Apr 04, 2009
Your description seems to be confusing turntable and light do not work
Bulb and motor OK
No power to light or turntable
Which is it?
They could be separate incidents. The drive motor could be fused and the globe just blew its life away..
Posted on Aug 16, 2009
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