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Posted on May 27, 2009
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Not heating light flashing on opening door then goes out(sometimes). Water in test cup not heating. During 1 minute cook timr and on pressing micro the screen shows 100% but alas no heat

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Benjamin Patri

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  • Master 3,037 Answers
  • Posted on May 27, 2009
Benjamin Patri
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Sounds like the magnetron has failed. This is the component that produces the microwaves that heats the food.

The cost of the magnetron is about 95% of the cost of a microwave oven. Most people don't, for this reason, replace the magnetron, they replace the whole oven which is probably what you will end up doing.

There is a possibility that the circuit that provides power to the magnetron is faulty and you need to take it apart, find the proper electrical leads and test them with a volt meter. To do this you have to remove it from its mounting and take it apart. It is a fairly lengthy process however.


Benjamin

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RE: Samsung microwave SMH7187STG mfg'd 5/08. I heated cup of tea 2 min.Then I closed micro's door & micro emitted a continuous electrical buzzing sound.I opened door & buzzing stopped.

The cook relay on your control board is shorted, and the unit is cooking whenever you close the door.

When the magnetron overheats, its thermostat opens, shutting power down until the unit cools to a safe level, then power is restored.

I regularly repair these with my $54.95 service, which includes insured return shipping.

Details are here, or for full information and instructions, please e-mail me here at [email protected] and remind me of your full model number and symptoms.
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Microwave wont heat up food

If your microwave runs, but doesn'theat your food, verify that you have selected a cooking setting. You mayaccidentally set the timer. Test the magnetron by placing 1 cup of water in themicrowave and heating the water for three minutes. If the water doesn't heat,your magnetron is dead.
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No microwave problem. I have a micro 21 by raytheon pan. Please tell me how much water, vegetables and time to cook them. I don't have a instruction book.

I found an instruction booklet. For most veggies (1/2 lb) steam for 10 minutes using 3/4 cup water. Add 5 minutes steaming time for frozen. 1 whole cauliflower is 15 minutes & 1 cup water
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Interior bulb needs to be replaced. What needs to be removed to gain access? Thanks

Advantium - Interior Light Operation While Microwaving

The Advantium 240 oven interior (cavity) light will illuminate anytime the door is open. However, due to the dark tint on the oven door, there is not a light on while cooking since the food would not be visible using the interior lamp.
Food may be viewed during a microwave cycle by pressing the Microwave/Oven Light pad.

One of the Upper Level Speedcook lamps will come on for 5 seconds. The Microwave/Oven Light pad can be pressed up to 5 times during a microwave cooking cycle. The limit of 5 times is to prevent excessive heat on microwave cookware from the Speedcook lamp.

The Advantium 120 oven cavity is illuminated anytime the door is opened and while the unit is in the microwave only mode. As a result it will not have the Microwave/Oven Light pad.

If the light is not operating properly, you will want to have it checked by an authorized service technician. To obtain in or out of warranty repair on Major Appliances, you may call 1-800-GE-CARES (800-432-2737) or schedule service online.
Advantium - Interior Light Operation While Microwaving

The Advantium 240 oven interior (cavity) light will illuminate anytime the door is open. However, due to the dark tint on the oven door, there is not a light on while cooking since the food would not be visible using the interior lamp.
Food may be viewed during a microwave cycle by pressing the Microwave/Oven Light pad.

One of the Upper Level Speedcook lamps will come on for 5 seconds. The Microwave/Oven Light pad can be pressed up to 5 times during a microwave cooking cycle. The limit of 5 times is to prevent excessive heat on microwave cookware from the Speedcook lamp.

The Advantium 120 oven cavity is illuminated anytime the door is opened and while the unit is in the microwave only mode. As a result it will not have the Microwave/Oven Light pad.

If the light is not operating properly, you will want to have it checked by an authorized service technician. To obtain in or out of warranty repair on Major Appliances, you may call 1-800-GE-CARES (800-432-2737) or schedule service online.
Advantium - Interior Light Operation While Microwaving

The Advantium 240 oven interior (cavity) light will illuminate anytime the door is open. However, due to the dark tint on the oven door, there is not a light on while cooking since the food would not be visible using the interior lamp.
Food may be viewed during a microwave cycle by pressing the Microwave/Oven Light pad.

One of the Upper Level Speedcook lamps will come on for 5 seconds. The Microwave/Oven Light pad can be pressed up to 5 times during a microwave cooking cycle. The limit of 5 times is to prevent excessive heat on microwave cookware from the Speedcook lamp.

The Advantium 120 oven cavity is illuminated anytime the door is opened and while the unit is in the microwave only mode. As a result it will not have the Microwave/Oven Light pad.

If the light is not operating properly, you will want to have it checked by an authorized service technician. To obtain in or out of warranty repair on Major Appliances, you may call 1-800-GE-CARES (800-432-2737) or schedule service online.
Check here

http://www.geappliances.com/search/fast/infobase/10000007.htm

Advantium - Interior Light Operation While Microwaving

The Advantium 240 oven interior (cavity) light will illuminate anytime the door is open. However, due to the dark tint on the oven door, there is not a light on while cooking since the food would not be visible using the interior lamp.
Food may be viewed during a microwave cycle by pressing the Microwave/Oven Light pad.

One of the Upper Level Speedcook lamps will come on for 5 seconds. The Microwave/Oven Light pad can be pressed up to 5 times during a microwave cooking cycle. The limit of 5 times is to prevent excessive heat on microwave cookware from the Speedcook lamp.

The Advantium 120 oven cavity is illuminated anytime the door is opened and while the unit is in the microwave only mode. As a result it will not have the Microwave/Oven Light pad.

If the light is not operating properly, you will want to have it checked by an authorized service technician. To obtain in or out of warranty repair on Major Appliances, you may call 1-800-GE-CARES (800-432-2737) or schedule service online.
1helpful
1answer

Not heating and light flashing

Sounds like the magnetron has failed. This is the component that produces the microwaves that heats the food.

The cost of the magnetron is about 95% of the cost of a microwave oven. Most people don't, for this reason, replace the magnetron, they replace the whole oven which is probably what you will end up doing.

There is a possibility that the circuit that provides power to the magnetron is faulty and you need to take it apart, find the proper electrical leads and test them with a volt meter. To do this you have to remove it from its mounting and take it apart. It is a fairly lengthy process however.


Benjamin
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No heating or power to microwave oven

You have a fuse in the back that's problem is blown
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I have a JVM1603BJ03 space saver micro wave. The turn table cracked in two, the plastic support device to turn the glass table has desenigrated into several small pieces. It appears the micro wave is...

Do you cook a lot of popcorn?

Do you place your food items in the center of the turntable as opposed to placing them off-center?

Both can cause repeated heating of the same spot on the turntable, which can stress it and allow it to crack.

You can buy replacement parts here.

I suggest that when you cook popcorn, place a paper plate or two upside-down under the bag and always place your food items off-center on the turntable tray.

Once you have the new parts, I would suggest at least a quick heat test. That is to heat one cup of water on high and it should boil in about 2 to 2-1/2 minutes.

If you would like to perform a more standard heat test, please see my Ask Mr. Microwave page.

If your magnetron is indeed running too hot, then it is probably dying. Sometimes - like a star - they can burn hotter right before they die.

We're happy to help and we appreciate your thoughtful rating of our answer.
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