Question about Kenmore 64002 Microwave Oven

2 Answers

Everything works except it doesn't heat anything

Is there a fuse or something just for the heating part of the microwave?

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  • Anonymous Jan 13, 2008

    is the magnatron replacable by the average consumer and worth the trouble?

  • sc2394 Oct 14, 2008

    it doesn't heat anything!!!!

  • Anonymous Jan 23, 2009

    It is only two years old. Would not heat anything. Un plugged and plugged in, then set to high power. Works fine. ????.

  • monty 7 Feb 14, 2009

    runs but no heat.where is fuse?
    gpm12173@comcast.net


  • bdamer May 10, 2009

    it works but it doesn't heat up the food.

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2 Answers

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  • Master
  • 579 Answers

No, just 1 main fuse for everything. there are temp safety devices though, and door closed safety switches. Most likely failure though is the magnatron.

Posted on Dec 31, 2007

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  • 1 Answer

Can I change the magnitron myself? Model #721.80012401--kenmore galaxy microwave

Posted on Feb 10, 2009

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
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Posted on Jan 02, 2017

MicrowaveSvc
  • 9098 Answers

SOURCE: 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?

Posted on Aug 02, 2008

MicrowaveSvc
  • 9098 Answers

SOURCE: Whirlpool GH7155XKQ, everything works except it is not heating.

With the symptoms you have, I would most strongly suspect a shorted high voltage rectifier diode or a bad magnetron.

The diode is a fairly cheap fix, and the mag will cost more.

There should be a "mini-manual" (tech sheet) hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting, testing, and locating components.

At our Web site, we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

If you don't find your mini-manual, or if you want to look at it before removing the controller, you can download it here (just enter your model number).

Here are some links you or someone you know can use for test help, but read their safety warnings first:

http://www.gallawa.com/microtech/diode.html
(if it's not shorted or burned, it's probably okay)


http://www.gallawa.com/microtech/mag_test.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.

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

Posted on Aug 24, 2009

  • 534 Answers

SOURCE: I have a Kenmore Microwave Model #721.80522500

Magneto or magnatron has gone bad. This is the part that sends the waves through the food to heat it.

Dave

Posted on Jan 12, 2010

heatman101
  • 43501 Answers

SOURCE: Microwave Smokes

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

Microwave Oven Basic Troubleshooting Tips
http://www.fixya.com/support/r5508031-microwave_oven_basic_troubleshooting

heatman101

Posted on Aug 07, 2010

  • 6771 Answers

SOURCE: I have a Whirlpool GH5176XPS

The problem is more than likely a bad magnetron, "heats food" the other two considerations are the high voltage capacitor and diode.

Posted on Mar 31, 2011

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Everything on microwave works except it doesn't heat or cook. what is the problem?


IT'S THE MAGNITRON - CHEAPER TO BUY NEW THAN REPLACE - SORRY.

Jan 09, 2013 | Microwave Ovens

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Maytag microwave problem everything seemingly works but does not heat. Help


see this causes and fix it. God bless you
Diode The high voltage diode converts the A/C power output of the transformer to D/C, doubling the voltage to nearly 5,000 volts. This high voltage powers the magnetron which emits the energy that cooks the food. If the diode burns out, a lower A/C voltage reaches the magnetron, which is not sufficient to power the magnetron. When the diode fails it is often visibly burned out. If it appears to be good, it can be tested with a volt-Ohm meter capable of testing diodes. High voltage diodes frequently fail and are one of the most common points of failure in a microwave oven.

Door Switch If the microwave does not heat, one of the door switches might be defective. Microwave ovens normally have three door switches, if any of them fail the microwave does not turn on and does not heat. Check the switches for continuity with an Ohm meter.

Magnetron If the microwave oven doesn't heat the magnetron tube might have burned out. The magnetron uses high voltage, high current DC power to generate the microwave frequency that cooks the food. If the microwave oven is turned on when it is empty this can cause the magnetron to burn out. Once it is burned out it has to be replaced, it's not repairable.

High Voltage Capacitor If the microwave doesn't heat the high voltage capacitor might be defective. The high voltage capacitor works with the high voltage diode to convert the output of the transformer to DC voltage and to double the output voltage. If the capacitor is burned out the entire high voltage circuit stops working properly. The high voltage capacitor can be checked with a special VOM meter which has a capacitance testing capability. Be aware that the high voltage capacitor can retain a charge of more than 3,000 volts and can injure or kill a person if not handled properly. Only trained technicians should perform this type of testing.

High Voltage Transformer If the microwave does not heat, the high voltage transformer might be burned out. Microwave ovens produce a very high voltage in order to power the magnetron antenna, which emits the energy that cooks the food.

Thermal Fuse If the microwave doesn't heat the thermal fuse may have blown. It can be tested for continuity. Watch our fuse testing video for more information.
Thermoprotector If the microwave doesn't heat the thermoprotector may have tripped. This is a safety device to prevent the microwave from overheating. It can be tested for continuity to see if it's blown.

Main Control Board If the microwave doesn't heat the main control board may be defective. This is not common. When a microwave doesn't heat the problem is usually within the high voltage circuit; either the high voltage capacitor, diode, transformer or magnetron.


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Oct 01, 2012 | Maytag MMV4205 Microwave Oven

1 Answer

I have a Whirlpool GH5176XPS microwave and everything seems to work fine except that it does not heat anything. I have checked all the fuses and they are fine. Any suggestions?


The problem is more than likely a bad magnetron, "heats food" the other two considerations are the high voltage capacitor and diode.

Mar 31, 2011 | Whirlpool GH5176XPS Microwave Oven

1 Answer

Everything seems to be working except it won't heat anything it just suddenly stopped heating.


Did anything spill or blowup inside? Remove the glass tray and be sure all is clean and dry.
If something did blow up (food or liquid), find the small mica window on the inside, and carefully remove it, clean up, dry off in the cavity too, and replace it.
Try to use. This has fixed 3 different microwaves for me. Hope it helps you.

Nov 10, 2010 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

Microwave does not heat


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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Jun 15, 2010 | Whirlpool MH7140XF Microwave Oven

1 Answer

Everything on our microwave still works( Clock,lights, fan) except it will no longer heat anything you put in it


HI. in most cases, this will lead to a failed Heating device(magnetron tube).It would be wise to check the Magnetron cutoff fuse to be sure of its integrity. if the fuse is blown, simply replace it. if the fuse continues to show continuity, replace the magnetron.

(((The fuse is located inside the unit along side the magnetron)))

Oct 12, 2009 | GE Spacemaker JVM1640SJ Microwave Oven

2 Answers

Microwave Smokes


the problem is in the magnetron try to replace it.

Jan 27, 2009 | GE JVM1660 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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