Question about Sharp R-930AK Convection/Microwave Oven

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Maytag MMV4205BAS stopped dead in the middle of a heating cycle. Unplugged and plugged back in. Oven is on the same fuse and it's fine. Any ideas?

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There are several possible causes for a dead oven. Since yours quit in the middle of heating, I'd say it's most likely failure of the magnetron tube which supplies the microwaves. There's a safety thermostat on the tube which opens up and shuts off power if the tube overheats. Overheating is one sign of a tube that's gone bad.

There's really nothing user-serviceable in a microwave oven. Because of hazardous voltages inside and the possibility of microwave leakage, service should be left to professionals. Take the oven to a service shop for an estimate.

Posted on Jun 04, 2009

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