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?

Question 1

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Microwave will not heat, but will turn on. Clock and Timer still work. Turntable turns. Making a loud humming noise and light flickers

This clearly indicates a bad magnetron, "heats food" in most cases it is cheaper to replace the microwave oven than have it repaired, since the magnetron is the heart of the unit.

Mar 01, 2012 • Microwave Ovens

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My 3 year old frigidaire microwave made a loud pop and stopped heating. Everything else works. It also now makes a loud humming sound while running.

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

Microwave Oven Basic Troubleshooting Tips

heatman101 ][
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Apr 02, 2011 • Frigidaire GLMV169D Microwave Oven

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It started making a loud humming sound. The turntable still turns, but doesn't seem to heat anything up.

Hi,

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

Basic Microwave Oven Troubleshooting Tips

heatman101

Dec 24, 2010 • Maytag MMV4205 Microwave Oven

1helpful

2answers

Intense squeaking noise

When microwave is running, turntable squeaking when rotating. Can problem be fixed? Microwave is about twelve years old.

Mar 07, 2010 • GE Spacemaker JVM1640SJ Microwave Oven

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1answer

Micro wave not heating

It sounds like a failing magnetron. Sometimes they can be intermittent before they finally fail for good.

Chances are your oven has a 5-10 year warranty on the magnetron.

Please note that FixYa is not currently notifying us Experts when Clarification Requests are answered.

To allow us to help you effectively (at no charge), please post a NEW problem to FixYa, and please include your brand name and the full model number from the tag in or on the unit, and your detailed symptoms.

A loud buzz, hum, or groan is usually a shorted high voltage rectifier diode, but a sound like gurgling into an empty coffee mug is one symptom of a failed magnetron, and yet the mag can be bad without that sound.

Dec 12, 2009 • Maytag Appliances Over-the-Range Microwave...

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1answer

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

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1answer

Dacor dcm24s.light, fan, and control panel work but turntable and heat do not

Most likely the bottom door switch. Dacor units are built by Sharp and that switch is a very common problem. You'd either need to check the switch with an ohm meter or remove the cover of the switch to see if it's burned inside.

Oct 20, 2008 • Sharp R-930AK Convection/Microwave Oven

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Load humming.(louder then normal.)

It does not heat.

I already replaced the HV diode. That did not fix the problem

It still has a loud hum and no heat. I'm guessing the magnetron.

The unit is six years old. I did not purchase it, the unit came with my house.

Model # JE1660MB002

Sep 24, 2008 • GE Microwave Ovens

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Maytag microwave mmv1153aaw

my guess would be the wave cover. sometimes they smoke and makes sparking sounds. does it still heat food?...if it does, then its not the magnetron.

Feb 18, 2008 • Maytag MMV4205 Microwave Oven

19helpful

2answers

GE Spacemaker XL1800

have a GE xl1800 microwave that is not heating the food. The lights work, turntable turns etc. all but no heat. Help this microwave is only 1 years old.

Nov 03, 2007 • Roper MHE14XKB Microwave Oven

Question 2

Stephen Lam

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Posted on Jul 01, 2010

Stephen Lam

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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.

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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?

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Stephen Lam

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Microwave will not heat, but will turn on. Clock and Timer still work. Turntable turns. Making a loud humming noise and light flickers

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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?

1 Answer

Stephen Lam

Add Your Answer

Attachments: Added items

Related Questions:

Microwave will not heat, but will turn on. Clock and Timer still work. Turntable turns. Making a loud humming noise and light flickers

My 3 year old frigidaire microwave made a loud pop and stopped heating. Everything else works. It also now makes a loud humming sound while running.

It started making a loud humming sound. The turntable still turns, but doesn't seem to heat anything up.

Intense squeaking noise

Micro wave not heating

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Not finding what you are looking for?

Profile Spacemaker JVM1871 Microwave Oven

Microwave will not heat, but will turn on. Clock and Timer still work. Turntable turns. Making a loud humming noise and light flickers

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