Question about Microwave Ovens

1 Answer

Microwave doesn't heat anything

Samsung microwave works but nothing gets hot. Water after 4 minutes is still cool to the touch. Is this a magnetron issue?

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 355 Answers

Hello,
You are 100% correct in your guess of the magnetron is bad and is need of being replaced. You do have to verify that the mounting bracket is the same and preferrably of the same wattage that was installed or of a higher value if you are replacing it from another microwave that was discarded. The magnetron is usually built very well so most microwaves that are tossed are due to the control panel display and not the the magnetron tube assembly.
The best bet would be to purchase the same model # magnetron that was removed from the oven if you are doing it yourself.

Posted on Jan 03, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Why can't you run a microwave without anything in it? What happens and can you fix the problem? I forgot to put the food in and ran it for 4 minutes with nothing inside. Now it won't heat any food.


A microwave oven works on the principal of a high power high frequency radio transmitter. The device that emits the microwave energy is a tube called a magnetron . When you run the microwave empty with nothing to absorb the microwave energy it is all reflected back to the magnetron causing it to overheat and destroy itself or cause failure in the High Voltage power supply due to excessive current draw.This is caused by standing waves.

Aug 08, 2014 | GE Spacemaker JVM1740 Microwave Oven

1 Answer

Heating problems Jenn-air microwave - jmv8000bds - it heats while unused for a while but to warm more than the first item is not working - what is broke? jeffrey40@yahoo.com


First, check to make sure that the air vents are clear. Secondly, is the cooling fan running? If these are OK, (how old is this unit?) it's probably the magnetron is old and weak....... Put in a container with 2 quarts of cold water and run it for 10 minutes. It should boil water after about 4 or 5 minutes and keep boiling it for the remainder of the timer preset. If not, the magnetron is losing power.

Sep 20, 2013 | Jenn-Air JMC8130DD Microwave Oven

1 Answer

The Microwave shut off after a few seconds. I removed it from the wall and took the cover off. I fired it up and initially it behaved the same. I checked wire connectors that were readily available. Did...


It will get hot in a very short period of time. Could you have set the time for a few seconds instead of a few minutes? Thermal issues normally take the unit out until replaced. They are one shot thermal protect devices.

Sep 06, 2013 | GE SpaceMaker Microwave Ovens

1 Answer

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.

Mar 08, 2012 | Sanyo Microwave Ovens

1 Answer

Oven is not making etables heat


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.

Mar 07, 2012 | LG Microwave Ovens

1 Answer

Microwave worked this morning and now not.....made no noise just stopped heating.


HELLO.

The solution is to diagnose the magnetron as explained below.

* 1 Fill a mug with room temperature water from your kitchen sink.

* 2 Place the mug of water on the glass cooking plate inside the microwave.

* 3 Set the microwave on "High" for one minute and press "Start." You should hear the magnetron hum while it is working.

* 4 Remove the mug carefully from the oven by its handle. The magnetron is working properly if the water is hot or warm. The next step repair or a replacement of magnetron if the water is still cold.

Thanks.

Sep 22, 2011 | GE Spacemaker JVM1640SJ Microwave Oven

2 Answers

MY MICROWAVE DOEST HEAT, IT LOOKS LIKE WORK NORMALY BUT DOESN HEAT


pull your magnetron connector out and clean the both pins with alcohols or a metal cleaner and then fix it again and use. magnetron will work surely.

Oct 03, 2009 | Samsung MW8574W Microwave Oven

1 Answer

Microwave oven trouble


Obviously, heat escaping from anything heated in the oven will indirectly heat the walls and the magnetron is not 100% efficient so it radiates a good deal of heat but that is normally carried off by the cooling fan and exhausted into the room air.

Oct 30, 2008 | Kenmore 63252 Microwave Oven

1 Answer

Above Range GE Microwave not heating


Try disconnecting the power line from the microwave ad then reinstalling it after a few minutes.. then try heating up a small cup of water.. allow 1.5 minutes on high power. it should get very hot or boil.. if it doesn't get warm or hot then you may have a bad magnetron ( the tube that produces the microwave energy that causes things to heat up or a bad filament transformer that is required for the magnetron to work.In either case, if it fails to heat anything, I would go back to home depot and insist they send someone out to address the problem. many of their appliances come with a one year warranty but you might want to call the store and ask someone there about normal applaince coverage ( less extended warranty) and what they normally offer. An inquiry costs nothing..

Hope this helps..

Sep 17, 2008 | GE Microwave Ovens

Not finding what you are looking for?
Microwave Ovens Logo

Related Topics:

235 people viewed this question

Ask a Question

Usually answered in minutes!

Top Microwave Ovens Experts

William Miller
William Miller

Level 3 Expert

8820 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Devabhakthuni...
Devabhakthuni...

Level 2 Expert

224 Answers

Are you a Microwave Oven Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...