Question about GE JVM1190 Microwave Oven

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GE Microwave JE1640WB blows circuit breaker

I have removed the microwave from it's built in cabinet and tested the outlet with a hair dryer on high. Works fine. My thought now is that it's a failed magnetron.

On the GE website it says the magnetron on this model has a 9 year warrenty. This one just passed age 7.

I will contact GE, but thought I would ask you guys if you think I'm on the right track here.

Thank you,
Sean West

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  • seanski Mar 27, 2008

    I really appreciate your quick response. I agree that it's probably time to dispose of the microwave. I brought a replacement unit home from Sears last night and it works fine. No circuit breaker problems, so I'm not going to try the "switch circuit breakers" idea. Since I'm using a counter top model in a built-in shelf I'll have some trim work to do but I can do that.

    Thanks again!!

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Could the fault be caused by the Capacitor!?
I had a similar problem as Seanski,
Except my microwave is a Panasonic one,
I tested the magnetron and all readings are fine (according to the Web), but the Capacitor doesn't seem to oscillate from Infinity to 0 ohm!!??

Posted on Apr 16, 2008

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The problem may not have anything to do with the magnetron.
It is a device that uses DC for operation and to supply that, there is one or more heavy diodes that are more likely to fail first.
Have also seen the transformers fail occasionally too.

Frankly, it may be time to dispose of it since you will likely be billed for the repair if the magnetron is not at fault and once they have it, you don't know if the truth is being told or not.

Another possibility is a circuit breaker on its way to the grave.
If you care to go to the trouble, you might shut down the main breaker in the breaker box, swap the tripping breaker with another of the same rating and try the microwave one more time.
The surge current the microwave draws is probably a good bit higher than the hair dryer and might be enough to trip an aged breaker.

Posted on Mar 27, 2008

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