SOURCE: Comination Microwave
Generally, the most common causes of a failure to heat are:
- bad door switches or door switch mounts
- loose connection at the magnetron
- problem or loose connection on the control unit circuit board
- bad magnetron or other high voltage part
I would think it's not a door switch problem since the oven and grill work.
I'd say this is a problem with the inverter or a bad magnetron.
More importantly, 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:
http://www2.panasonic.com/webapp/wcs/stores/servlet/vServiceLocator?storeId=15001
We're happy to help and we appreciate your thoughtful rating of our answer.
SOURCE: Panasonic dimension 4 microwave/convection oven
Does this unit have a turntable? If so does it turn when on?
SOURCE: Micro Wave shuts down
If
it stops after 22 seconds, that means the controller has detected a
problem, usually 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.
You can find an authorized Panasonic servicer here.
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
SOURCE: Panasonic Dimension 4 microwave switches off
Try resetting it--aka, unplug for about an hour, then plug back in and try again. If that doesn't work, make sure you try a different outlet, and if all else fails, contact Panasonic. They should be able to help you out with a repair/replacement (and if you're still under warranty, usually it'll be free!).
Their phone number (acccording to their website, www.panasonic.com ) is 1-800-211-PANA (7262)
Good luck! :)
Testimonial: "Very quick and clear, thanks."
SOURCE: Panasonic dimension 4 microwave/convection oven
It sounds like the magnetron may have
either failed or is not being supplied with the extremely high
voltage required to run it.
Make sure the !!!!capacitor is
discharged!!!!! before attempting any sort of repair.
Check
the door interlock switches first then the high voltage diode with
either an AVO model 8 on high resistance range for short circuit, the
capacitor can fail and go short circuit, the feed fuse on the primary
of the high voltage transformer and then finally, the magnetron is
best checked by substitution.
Hope that helps.
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