Question about GE Spacemaker JVM1640SJ Microwave Oven

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Making a humming noise when turned on and not cooking. I punch in the cooking time I would like and then when it turns on it makes a humming noise and does not cook.

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From your description it appears that the Magnetron has failed on your microwave.

*Please be aware*
Replacing the Magnetron in a Microwave is a highly specialist job and should not be carried out by an unqualified person. Microwaves carry lethal levels of voltage even after they have been unplugged from the mains supply. The high voltage circuitry in this area of the oven is extremely dangerous and must undergo a discharging process before work can commence. The Magnetron itself is the main 'engine' of the microwave and operates under extremely high voltages.

For this reason I strongly urge you not to attempt this repair yourself but have it carried out by an electronics repair shop. The cost of this is likely to be prohibitive and you will need to weigh up whether this repair is economically viable or whether you would be better to replace the unit altogether.

Hope this helps. Thanks for using FixYa.

Posted on Sep 23, 2009

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That humming noise is the magnetron failing. Replace the magnetron and you should be good to go.

Posted on Sep 23, 2009

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Here is a tip that will help you to figure out what is wrong with your Microwave Oven....

Microwave Oven Basic Troubleshooting Tips

heatman101

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So we can help you, please post a NEW question, and please include your full model number from the tag in or on the unit, as well as the answers to these questions:

When you try to microwave are the inside light, internal cooling fan and turntable all working?

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We have a sound clip of what a microwave should sound like when the cooling fan and high voltage section are working.

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