Question about GE Advantium 120 Convection/Microwave Oven

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Microwave oven Micorwave oven doesn't heat the food items. Whenever its on, some kind of coil burn smell is coming. How to fix the problem. do we have to replace the microwave?

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  • Djhea Mar 14, 2008

    the microwave does not heat up and it smells like it is burning

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Most microwave oven problems can be repaired, but you'll need to take it to a reputable microwave service shop to get it diag**sed properly and find out how much it will cost to repair. A major problem with the magnetron or other high-voltage parts could cost as much as 85% of a new one to fix. It may be worth it, however, if the oven is in good condition, with ** holes or corrosion in the cooking chamber and if you like the features.

Posted on Mar 09, 2008

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Food in microwave is burning on edge and cold in the center


you may find the old unit was lower watts so took longer & cooked/heated better all the way through. a way to fix this is lower temp settings or pause and stir the food to help heat it up more even.

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Sharp micro doesn't heat


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 02, 2012 | Sharp Microwave Ovens

2 Answers

We were using the microwave the other night and it started making a loud noise like the fan was running (although the fan was not). We let it sit for awhile and try to use it again but the noise came...


The loud noise and no heat means that the magnetron has failed. It the part that generates the microwaves that heat the food. When it fails it shorts out, causing the transformer to heat up. That is what was causing the burning smell. The cost of a replacement magnetron is around $130-150 range so it may not make sense to have it fixed.

Mar 24, 2011 | Maytag MMV4205 Microwave Oven

1 Answer

My Kenmore 721.626222 which I have had about 6 years, runs but does not heat. There is also a strange smell - something like a burning smell.


When the oven does not heat, the problem is usually due to the magnetron failing. It the part that generates the microwaves that heat the food. It fails by shorting out causing a loud buzzing noise. The burning smell is the being magnetron overloaded due to the short. It not worth fixing since the replacement cost of a magnetron is close to the price of a new oven. Sorry.

Feb 09, 2011 | Kenmore 62622 Microwave Oven

1 Answer

The microwave no longer heats food and it smells as if something is burning. Everything else on the microwave works. Is this a common problem and how can I fix it?


Its your Magnatron tube, thats what makes the microwaves and heats the food. The part will cost you more than a new micro. The new model that replaced yours is a JVM1540 and you can get them for 179.00

Jan 17, 2011 | GE JVM1440 Microwave Oven

1 Answer

Is there anything we can do to remove the smell of burned food from the microwave? The smell has permeated the inside of the unit and emits the burned food smell whenever it is used.


I've adviced you to placed charcoal inside the unit overnight or when it is not in used.
Charcoal will absorb the upleasant odor from your microwave oven.

Thanks for using fixya...

Jan 09, 2011 | Whirlpool Microwave Ovens

1 Answer

I placed food in the microwave over to heat for 19 seconds, when it was finished I smelled smoke coming from the oven. The food was fine. I unpluged the oven. I tried it a couple of days later, it...


the smoke probably came from the heated food. try using it next time with different kind of foods and also try it to the same kind of food that produces smoke but observe carefully what will happen.

Dec 29, 2010 | Emerson Microwave Ovens

1 Answer

Wire burning smell from Microware


unplug it.....if on fire, use dry chen extinguisher, if still persistent, dial 911 n get out of the house

Apr 23, 2010 | Thermador MBBS Microwave Oven

1 Answer

Microwave wont heat food. Everything else works.


Micorwave doesn't work when the megatron tube is out. That's probably why it won't heat up. Either replace microwave or the tube. You can get the number from Sears for the megatron tube by calling customer support.

Nov 09, 2009 | KitchenAid KHMS155LSS 1000 Watts Microwave...

1 Answer

It is not heating correctly, and has a burning smelling coming from it.


If your microwave oven isn't working very well in terms of heating food.. and you have a burning smell coming from it.. there is a good chance that the Magnetron tube has failed or is close to failing or the transformer that feeds it is failing.. The cost to repair may be higher than the cost to replace the entire Microwave so I would suggest you just consider purchasing another one.. Just my opinion.. Hope that helps...

Aug 27, 2008 | Microwave Ovens

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