Question about Microwave Ovens

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Microwave won't heat

The oven turns on, but makes a louder than normal noise and no heat.

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  • Master
  • 458 Answers

This is very likely a faulty Magnetron especially as there is not heat. To repair this would mean replacing the Magnetron which is a fairly standard repair for a Microwave oven

Posted on Nov 26, 2012

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6 Suggested Answers

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Posted on Jan 02, 2017

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grandadfixer
  • 99 Answers

SOURCE: MY MICROWAVE WILL NOT HEAT

possiblt rectifier gone.

Posted on Oct 18, 2008

najah
  • 180 Answers

SOURCE: Sharp R-1480 Microwave Oven made craking noise-now does not heat

Replace the magnetron and check the wave guide also.

Posted on May 16, 2009

dmftrucker
  • 1922 Answers

SOURCE: microwave started making slightly louder noise now will not heat

either the h.v. diode or the h.v. capacitor are open and replaced they build the hi voltage needed by the magnetron tube assembly

Posted on Oct 13, 2009

BNUTZBCRAZY
  • 130 Answers

SOURCE: I have a Maytag mmv4205baw Microwave oven. It

the unit that creates the microwaves called the "magnetron" has gone bad, or the circuits powering the magnetron have gone bad. there really isnt a cheap way to fix it, and not a undangerous way to fix it yourself. if your really like the microwave and dont want to part with it, you can try finding a repair shop that will fix microwaves, but they will probably tell you it would be cheaper to buy a new one. sorry

Posted on Jan 15, 2010

  • 1 Answer

SOURCE: Problem with the GE Spacemaker (JVM1640SJ)

GE Will replace the magnetron for 9 years! Mine is a 2004 model with a one year warrently according to manual. HOWEVER they did say the magnatron was covered for nine years: call 888-239-6832. When I called they said thats all they get calls for and would send out in 3-5 days. NO CHARGE. I had to ask if there was coverage longer than a year on major parts and that's when they offered the info and I eventually was transferred to the right office. Saved $120 bucks on parts alone.

Posted on Jun 30, 2011

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Our microwave unit (Maytag MMV5156AAS) is making a louder than normal noise (fan/motor) and is not heating. Looking for some assistance/guidance.


Hi,


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

Microwave Oven Basic Troubleshooting Tips

heatman101

Feb 02, 2011 | Maytag MMV5156AAS Microwave Oven

1 Answer

The keypad and clock works but the oven will not heat. and the oven makes a loud, abnormal sound when turned on. any ideas how i might get this oven running again?


If it appears to be making all the normal sounds but just a louder noise and no heat, your probably looking at a magnetron that is bad on unit. You are looking at about $100 just for the part. Hope this helps

Dec 02, 2009 | Frigidaire PLMV169DC Microwave Oven

1 Answer

Microwave started making slightly louder noise now will not heat


either the h.v. diode or the h.v. capacitor are open and replaced they build the hi voltage needed by the magnetron tube assembly

Oct 07, 2009 | Whirlpool MH7140XF Microwave Oven

1 Answer

Turns on but not heating food sounds a bit louder


Hi, this is common in most microwaves. this abnormal noise is coming from a faulty Magnetron. this device is responsible for the heating process and, it is damaged and not heating at all at this point.Simply replace the Magnetron and, this unit will start to heat once more.

May 31, 2009 | GE Profile Spacemaker Over-the-Range...

2 Answers

Noise while not running


don;t worry;
all you need to do is lubricate the fan bearings with light machine oil and make sure the fan is not hitting anything

Apr 18, 2009 | Kenmore 63682 / 63684 / 63689 Microwave...

3 Answers

My goldstar mv1501B won't heat anything. What' wrong?


everything works except the heating system what shell i do?

Mar 25, 2009 | Goldstar MV-1501 Microwave Oven

1 Answer

Won't heat


Do the inside light and turntable come on when you try to cook?

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

Do you have the model number?

Aug 01, 2008 | Maytag MMV5207A Microwave Oven

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