Question about GE Spacemaker JVM1640SJ Microwave Oven

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GE microwave model number JVM230WV 001 popped while cooking now when turned on it will only make a humming noise. Light comes on but no heat.

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1 Answer

Ge micorwave JNM7196 making humming noise

Could you post the full model number from the tag on the wall of the cooking cavity?

And when does this hum occur? Is it when it's setting still plugged in but not operating, or only when it's cooking, or only when the door is open?

Contact me at if you prefer. I'm happy to give free advice.

Jan 22, 2017 | GE Microwave Ovens

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My microwave would not turn off. Door closed and light/turntable off, the microwave continues to work when not selected on.

We are very sorry to hear this and we apologize for the inconvenience this has caused you. We would be glad to look into this if you could email us at with your name, address, phone number and the model & serial numbers of the Microwave.

Mar 09, 2017 | Whirlpool GT4185SK Microwave Oven

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Frigidare microwave has humming noise when not in use

You have a shorted cook relay.

You have a shorted cook relay.

Apr 26, 2013 | Microwave Ovens

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Ten years old. all fine until yesterday. it quit heating. what part do i need to replace and how do i do it? serial rm957366s model jvm230wv 001 manufactured 1995

There are a couple of possibilities. Most likely the oven needs a new magnetron tube, the microwave source. Ten years is a long time, and yours is probably now dead. The GE part number for a replacement tube is WB27X10249, and you can find several sources online where you can buy them. The price is around $125 on average.

The other possible trouble is a high-voltage rectifier that has failed. They usually fail by shorting out, though. When that happens, the oven usually makes a loud humming noise when it tries cooking. Since you say it just quit heating, I'd say the magnetron is to blame.

MICROWAVE OVENS USE HAZARDOUS VOLTAGES WHICH CAN KILL YOU. You may want to refer repair to a professional if you decide to keep the oven. (Given the part price, you may want to use this as an excuse to buy a new one anyway. Add in repair labor and it may only be a little less expensive than replacement.) But if you decide to try repairing the oven yourself, it's not impossible.

The hardest part in working on an over-the-range oven is taking it down. The magnetron is held in by nuts on threaded mounting posts and a couple of wires connect to it. Just make sure the oven has been unplugged for some time before working on it, Discharge the high-voltage capacitor (this site explains how) before you do anything else. Then it's a matter of removing the old tube and installing the new one. Get a new magnetron if you decide to try this; some sellers offers parts that have been removed from working ovens but the sometimes don't include a wire mesh gasket needed to avoid microwave leakage.

Hope this helps you figure out what to do. Thanks for using Fixya!

Jun 01, 2011 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

Mircowave runs but doesn't heat and it has a load hum.

You may need a new microwave..however, the diode may be defective or the magnatron tube may need replacing,,The magnatron tube is only warranted for 5 years so it may be used up as the model is (10years)fairly old.

Jun 18, 2010 | General Electric Microwave Oven

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Not heating up anything

Tat would be a magnetron problem. The magnetron is what provides the heat

Apr 30, 2010 | GE Spacemaker JVM1640SJ Microwave Oven

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GE Spacemaker XL1800(JVM1850CF001) - Loud Humming noise

You either have a bad magnetron tube (5 or 10 year parts warranty item through GE Factory Service 1-800-432-2737 or or a shorted high voltage rectifier. I think the light being out is a secondary problem.

Dec 18, 2008 | GE Spacemaker JVM1640SJ Microwave Oven

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GE Microwave problems after HV capacitor replacement???

The rectifier diode could indeed be bad. But first I would want to know what value (in uF) the old one was and what is the value of the new one? If they're too far off, the difference in the capacitive reactance could throw off the "tuning" of the circuit. The uF value of the capacitor is optimized in relation to the other components used in the system. Of course, you'd also want to be sure your new cap is at or slightly above the working voltage rating of the old one, too.

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