Question about Whirlpool GH7155XHS Microwave Oven

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My whirlpool microwave model Mh3184Xpt-0 is making a loud humming sound when it's being used. Everything else still works but I am not sure for how much longer.. Should I try to have it repaired or get a new one.? It's 9 years old

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

jsrock516
  • 5911 Answers

SOURCE: Maytag Rangehood Microwave Loud Humming

Sounds like you just fried your magnetron. Normally when they go bad, they make a very loud noise like what you described. The smell concerns me because you may have ruined the waveguide as well. If the magnetron burns through the protective painted surface of the waveguide, the waveguide is ruined. In most microwave ovens this means replacing the entire unit because the waveguide is not replaceable. Putting a new magnetron in a damaged waveguide will result in the same arcing and eventual failure. In addition to the magnetron, the following components are part of the same high voltage network: HV Transformer HV Diode HV Capacitor Magnetron Thermal Cut-Out Any one of these components could have also been damaged. I DO NOT recommend taking any voltage measurements inside the HV network. Potentials of over 4000 volts can be reached and make it very dangerous for the do-it-yourselfer. Taking resistance readings with the unit unplugged is strongly encouraged. If you decide to pursue a repair, inspect the magnetron tip and inside of the waveguide first. If the magnetron is melted and/or there are burn marks inside the waveguide, a new microwave may be a in order. This actually may be a better option than an expensive repair. I hope you find this advice helpful.

Posted on Jul 31, 2007

SOURCE: noisy when running - not the usual humming noise

check turntable motor or bush, this very easy problem, you can use oven no problem..

Posted on Nov 13, 2007

  • 1 Answer

SOURCE: humming sound when off

I also have the same microwave model and with the same problem. It is not quite 2 years old. I have a service call scheduled but did e-mail customer service at Whirlpool to inform them of this. Sounds like it could be defective model and a fire hazard. You should also inform them of yours.

Posted on May 16, 2008

  • 2315 Answers

SOURCE: Re: microwave does not heat

Is very unlikely that there could be any other electrical failure since everything else seems to be working.
If you are able to fix it yourself then is way more cheaper just to buy the magnetron.
Click here to find the magnetron.
Before you do any work on this device, please click here to know how to discharge the high voltage capacitor and other safety concerns when working with devices that generate high voltages.
I would say is not worth it to spend more then $100.00 for a 5+ years old microwave.
Good Luck.

Posted on Jul 16, 2008

nikeananth
  • 267 Answers

SOURCE: whirlpool microwave makes loud buzzing noise

When your microwave oven won't cook your food, and, you hear a loud buzzing sound, it’s normally caused by a faulty (a) diode (b) high-voltage capacitor (b) magnetron.
The diode would be the most likely culprit of the three components. It’s also by far the cheapest!

Posted on Sep 22, 2009

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Feb 03, 2016 | Whirlpool Accuwave Microwave Oven

1 Answer

My new GE over the range microwave works fine but has a loud buzzing/humming noise when in use


This sound you describe is not normal and should be checked quickly, even if it means returning the item.

Mar 27, 2012 | GE SpaceMaker 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.


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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

1 Answer

Model MH7130xez won't heat. everything else works. the clock, timer and lights. does this model have a fuse?


if unit won't heat, then there is a problem with either the magnetron or the diode. if its the magnetron, the microwave will sound almost normal. if its the diode, it will make a humming sound

Mar 26, 2011 | Whirlpool MH7135XE Microwave Oven

1 Answer

Whirlpool over the range microwave model #gh4155xpt-0 serial # trr4413897 Microwave make loud noise and will not heat.


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.

Here are some links you or someone you know can use (in order given) for test help, but read the safety warnings first:

http://www.gallawa.com/microtech/diode.html
(if it is NOT shorted or burned looking, it's probably fine)


http://www.gallawa.com/microtech/mag_test.html
(continuity can be good even though mag is bad!)


http://www.gallawa.com/microtech/xformer.html

You can find helpful exploded view diagrams and order parts by entering your full model number from the tag on the oven here.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Aug 18, 2010 | Whirlpool Microwave Ovens

1 Answer

Whirlpool Model #MH1170XSS-0 will not heat


Since FixYa is not currently notifying us Experts when Clarification Requests are answered, you will need to post a NEW help request.

I
n your new post, please include your brand name and the full model number from the tag in or on the unit and your symptoms, as well as the answer to the following questions:

- When you try to microwave are the inside light, internal cooling fan and turntable all working?

- Is there any unusual noise or is it louder or quieter than normal?

(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.)

We have a sound clip here of what a microwave should sound like when the cooling fan and high voltage section are working.


We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

William E. Miller
prototech@usa.net
http://www.microwavedisplay.com

Oct 07, 2009 | Whirlpool Microwave Ovens

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

HI. I have a Whirlpool Microwave (MH6141XKB). It will not reheat the food and makes a louder "humming" sound than normal. Other than that, everything works fine. Please advise. Brent


Brent
The magnatron in your oven has gone out and will need replaced!( This is the device that heats up your food) If everything is working and your food is not getting hot 99.9 percent of the time its the Magnatron or its fuse! The loud humming is also a big clue the MAGNATRON has gone bad!
Please rate this response and help us keep this area free!
Thank You!

Jan 21, 2009 | Whirlpool MH6141XK Microwave Oven

1 Answer

Noisy when running - not the usual humming noise


check turntable motor or bush, this very easy problem, you can use oven no problem..

Nov 11, 2007 | Whirlpool GH8155XJ Microwave Oven

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