Question about GE Spacemaker JVM1640SJ Microwave Oven

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My microwave oven is making a loud humming noise

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The H.V. transformer is loose on the chassis or the windings of it are loose, not much fix on this problem you can try to re-tighten mounting screws

Posted on Nov 19, 2009

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Posted on Jan 02, 2017

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1 Answer

My microwave makes a loud humming noise when it is turned on.


May as well use the microwave as is until it terminates naturally. All microwave ovens buzz, that nothing unusual, but although you can replace a Magnetron, the cost is unusually high. By the time you take the oven down, open the case and fuss around, perhaps not making things any better; the fact is; a new replacement with a warranty is just over $100. Why bother?

Feb 04, 2018 | Microwave Ovens

1 Answer

My JES636WK01 microwave heats up but it makes a loud humming noise. I suspected the Magnetron and disconnected it. The microwave was then operated and the n oiuse was the same. Do you have any ideas


Disconnect the HV transformer leads from the magnetron and the capacitor. Make sure none of the wires are touching the chasis or other parts. If the loud humming sound is still present, it is the High Voltage transformer making the noise. If the noise goes away, it is the High Voltage Capacitor going bad.

*MAKE SURE TO UNPLUG UNIT BEFORE TOUCHING ANY OF THE HIGH VOLTAGE LEADS! ALSO, DISCHARGE THE CAPACITOR BY SHORTING THE TWO SIDES AGAINST EACH OTHER!

Apr 15, 2011 | General Electric Microwave Oven

1 Answer

The unit is 3 years old and when I turn it on there is a loud hum. Theunit also does not heat but turns the turntable?


From your description it sounds like the magnetron has failed in this oven. That's the part the makes the microwaves to heat the food. It typically fails by shorting out and making a loud hum noise. It not usually worth fixing since the price of a replacement magnetron is almost as much as a new oven.

Jul 01, 2010 | GE Profile Spacemaker JVM1871 Microwave...

1 Answer

Generic problem for all Kenmore Microwave


Loud hum is usually due to faulty hv diod, resonance capacitor, or the magnatrone feed thru capacitor , chk it with a ohm meter , one by one n replace it .. zaheer Islamabad

Dec 31, 2009 | Kenmore Microwave Ovens

1 Answer

It is making a humming noise but not heating.


sounds like a crack in the magnetron
a bad transformer
or a bad rectifier
sorry i cant be more help

Oct 10, 2009 | Maytag MMV5100A Microwave Oven

1 Answer

Whirlpool builtin microwave humkming loudly


yes for sure magnetron or diode has gone bad.but usually it is the mag.magnetron when go bad they start making noise and stop heating.when chaging magnetron chg the diode with it.

Aug 18, 2009 | Whirlpool MH7140XF Microwave Oven

1 Answer

GE Microwave making loud humming noise


humming sound is your magneto going out Dont have any idea of the cost for replacement however it may be cheaper to purchase another microwave than to repair this one. Good Luck

Dave

Jul 16, 2009 | Microwave Ovens

1 Answer

Loud humming noise


If all of your door switches check out, replace the magnatron, capacitor, and diodes.

Oct 27, 2008 | KitchenAid KHMS145KSS Microwave Oven

1 Answer

Loud humming noise when in use


We had this problem with a new GE microwave in our last home. GE service replaced fan assy,.AND added rubber foam around the motor, Loud hum was reduced,but never did completely go away. We learned to live with it/

May 31, 2007 | GE JE1640 Microwave Oven

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