Question about Microwave Ovens

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I have a kenmore microwave/convection oven model 721.64289300. The microwave stopped heating up but the convection works fine. Is this repairable.

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  • Microwave Ovens Master
  • 9,047 Answers

I would suspect you have a failed cook relay on the control circuit board, but that can be economically repaired.

Details are here, along with a disassembly video.

Posted on Oct 17, 2013

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6ya6ya
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Posted on Jan 02, 2017

heatman101
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SOURCE: The microwave part of GE profile JVM1190

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

  • 1 Answer

SOURCE: Turntable stop working along with microwave and convection oven

would be a door micro-swtch sharp part # Sharp Part Number: QSW-MA085WRE0

Posted on May 02, 2009

najah
  • 180 Answers

SOURCE: Convection Oven has stopped working

magnetron may be defective . replace d magnetron

Posted on May 29, 2009

heatman101
  • 43501 Answers

SOURCE: Microwave part of my GE Sensor Convection Microwave doesn't work

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

heatman101
  • 43501 Answers

SOURCE: My GE Profile Convection Microwave Oven - Convection not working

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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Posted on Sep 30, 2010

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Kenmore elite model 721.80822500 convection oven won't heat. Microwave and other functions fine


If you wish to get some details about microwave oven and its working ; check the site linked here. Pull up older posts....
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The magnetron is the main part that gives out microwaves to heat the food. As the convection bit is working this points towards the microwave bits.
The magnetron has a main diode, fuse and transformer to run the microwave bit, any of these could be faulty. A word of warning though, there are extremely high voltages inside microwaves, even when unplugged in the main capacitor. Also to repair this section you will need to be a fully qualified engineer to even order parts for this.
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Ge microwave won't heat everything else works fine


Hello t_sumner4756,
Everything else can work perfectly fine but if it doesn't generate microwaves to heat your food than it is not working ( you knew that anyway).. Unfortunately, and in most cases when you microwave stops working in that manner..the components at fault are either the Magnetron, Filament PS or a High Voltage Capacitor..What that means is that you are probably better off just replacing the entire appliance rather than attempting to repair it. If it is a year old or less, bring it back to where you purchased it and have them replace it.. I am sure that is not what you wanted to hear but when the cost to repair exceeds the cost to replace... it just isn't worth repairing.. Plus.. there is an element of danger associated with these kinds of repairs...
Regards,
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Same thing happened to us. We just came back from Sears, where we bought another. Just for giggles, my wife suggested unplugging the old one and plugging it back in again. It works now. New one's going back to the store.

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