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I have a microwave that is not heating food and makes a loud noise

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Hi,


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

Basic
Microwave Oven Troubleshooting Tips

heatman101

Posted on Mar 16, 2011

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  • 2 Answers

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Posted on Jan 02, 2017

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1 Answer

Making loud noise when turning on to heat.


If there's a loud noise when you try to microwave food, then the current through the high voltage transformer is probably too high.
Most likely, this is being caused by failure of a component in the high voltage circuit. The most likely component is the high voltage rectifier, followed by the magnetron or high voltage capacitor. High voltage transformers occasionally do burn up as well.

May 27, 2016 | Microwave Ovens

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When microwave is started, why does it make a loud buzzing sound--like a Skil saw sounds?


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1 Answer

Coleman EB15A - Buzzing noise from transformer area, no heat or fan


see this causes and proceed. God bless you
Magnetron If the microwave is loud or noisy only when cooking, the magnetron tube might be defective. The magnetron uses high voltage, high current DC power to generate the microwave frequency that cooks the food. Under normal circumstances the magnetron is nearly silent. However if it is damaged or nearly burned out it can begin emitting high pitched or growling noises. It's not normally dangerous to use a microwave oven when it makes these noises, but they are an indication that the magnetron is almost dead and will need to be replaced.

Exhaust Fan Motor If the microwave is loud when running the fan motor might be
Stirrer Motor If the microwave is loud or noisy the stirrer motor might be worn out. The stirrer is a metal blade which slowly turns around, deflecting the microwave energy in a random pattern inside the microwave oven. As the motor nears the end of its useful life it begins to make grinding noises. The microwave will not heat food evenly without this stirrer, the motor should be replaced.

Turntable Motor If the microwave is loud or noisy the turntable motor might be worn out. This is a common problem and relatively easy to replace.
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Oct 18, 2012 | 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

Turned it on to heat food and make a loud noise , did not heat food and have electrical short ordor.


there is something metal inside that is causing this look for any screws or anything that may have been switch with a repair. what happens is the metal causes the microwaves to reflect back to the magnetron instead inside the food causing noises and sometimes sparks and odor. find the metal object remove it and this should solve your problem

Jan 29, 2011 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

GE spacesaver II making loud noise and is not heating up food


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 04, 2010 | GE Spacemaker JVM1640SJ Microwave Oven

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Our microwave oven started making a loud sound and quit heating


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

Basic Microwave Oven TroubleshootingTips

heatman101==]-]=-

Feb 14, 2010 | Emerson MW8107WA Microwave Oven

1 Answer

Danby microwave does not heat food and makes loud constant noise


IF the noise is a sound coming from the oven area, its the megatron tube. Typically, replacing the megatron tube is more expensive than replacing wiht a new unit and a new warranty.

Nov 06, 2009 | Danby DMW112 Microwave Oven

1 Answer

Microwave not heating food and is making loud noise.


You have burned out the magnatron (heating element) which is common on GE microwaves. most service companies will charge about 200-250 to replace it

Jan 31, 2009 | GE JVM1860 Microwave Oven

2 Answers

Microwave makes a loud noise while using.


Could you describe the noise?

It may be a noisy fan motor or a failing magnetron or high-voltage transformer.

If you or a friend decide to look into it, we have critical information on safety, disassembly and door switches at our site, linked here on Fixya: http://tinyurl.com/yzjozk

You can usually find helpful exploded view diagrams and order parts by entering your full model number here: http://tinyurl.com/gv383

Oct 13, 2007 | Microwave Ovens

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