Question about KitchenAid KHMS155LSS 1000 Watts Microwave Oven

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Loud humming sound and microwave does heat - KitchenAid KHMS155LSS 1000 Watts Microwave Oven

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Either your H.V. diode or H.V. Capacitor are open and not building the 2,000 vac for the magnetron tubes high voltage section

Posted on Oct 05, 2009

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Posted on Jan 02, 2017

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I have a "continuous" humming sounding when units are heating. The sound is very loud


The humming sound that occurs may be similar to the annoying buzzing my GE microwave produces at random. It could be mechanical vibration. Doesn't seem to affect cooking.

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Feb 03, 2016 | Whirlpool Accuwave Microwave Oven

1 Answer

Runs but has loud humming sound. Does not heat. Turntable, timer and lights work.


The diode that connects to the capacitor needs to be replaced. Once its replaced microwave will begin to heat again. (If it wasn't heating and wasn't making a humming noise, then your magnetron would need to be replaced). If you are thinking of doing it yourself and need instructions, i'll be glad to help.

Feb 06, 2011 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

The microwave is making a loud humming noise when it is on and it isn't heating. It also has a burning smell. We had this microwave repaired replacing the magnetron and diode in Jan. 2006.


sounds like same problem again.... the magnetron is what does the heating and if the display is working and just humming sounds like the mag is not coming on .... could be the capacitor but most likely the magnetron again..... i am a appliance /heating and air company out of texas we work on these things everyday and is very common problem... thanks a/c and heating unlimited good luck

Dec 31, 2010 | Jenn-Air JMC7000 Microwave Oven

1 Answer

Runs normally, but makes loud hum. not heating. in defrost mode, loud hum, then normal sounds, then loud hum, then normal...


Hi,


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

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heatman101

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Aug 15, 2010 | KitchenAid KCMS1555RSS Stainless Steel...

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

Microwave makes a loud hum and won't heat. What


Hi,
Here is a tip that will help you to figure out what is wrong with yourMicrowave Oven....

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heatman101

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Apr 09, 2010 | Electrolux Over-the-Range Microwave

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

GE JVM1850CH06 microwave no heat with loud humming sound


With the details you described, the high voltage diode might be shorted( usually HVR 1X). It is connected from the Capacitor and the chassis, or else the capacitor is the one at fault,but not common .

Aug 29, 2009 | GE JVM1850 1000 Watts 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

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