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Lg lmv1813sb replacing magnetron

How do i know if I have a bad magnetron and how easy are they to replace?

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What and where is the Magnetron TCO located? Where is the Magnetron located? Where can I find a sketch or drawing to work on these items


Kerry,
If your microwave is over 5-7 years old or nearing that, you might want to consider replacing it. Magnetrons can get very expensive and in some cases, some parts dealers will not sell one unless you are an authorized service tech. I am not sure exactly what you mean by the TCO, so not real sure that I can help you with that. Anytime you work on the inside of a microwave, you MUST be very careful because there are parts that create lethal voltage when running and you should only work on it if you know what you are doing. The magnetron, by the way is a square silver/gray box that will be mounted above the high-voltage transformer. That transformer usually will produce over 1000 volts of electricity when energized. Hope this helps!

Jun 25, 2015 | GE Hotpoint RVM1535 Microwave Oven

1 Answer

How to test a magnetron


Hi
Testing magnetron is easy. However caution must be taken when doing the measurement in resistance. If less than 1 ohm than it is still good otherwise it is bad. Btw not all the time magnetron goes bad but it could be power diode or power capacitor too or sometimes it is a simple bad door switch therefore needs to check all conditions as you have access. Provided link below on how to test magnetron for future reference.
http://www.microtechfactoryservice.com/mag_test.html

Jul 28, 2014 | Bosch HMV9305 Microwave Oven

1 Answer

It dont strart to hoting


Hi, the problem you are having with your microwave is a common one. Not heating is a problem that can be caused by three things. I'll list the most common solution first, the magnetron that actually does the heating is what is making that noise and has gone bad. It is possible for you to also have a bad high voltage diode that has opened up, solution two, or solution three is the high voltage capacitor is not working properly as well. From my experience with microwaves I am positive that it is your magnetron that is bad. If you are not do it yourselfer you'll need to take it to a repair shop to replace. However, if you know how to use a screwdriver and can unplug a couple of wires with spade terminals on them, then you can take it off yourself, find another one and replace it the same way you took it off. The magnetron sits behind the control panel of your microwave but on top. It has cooling fins on it and has 2 terminals maybe three depending and make and model that plug into it. It has 4 screws that are easy to get to that actually holds it in place. If you do not have a good local source like an electronic parts supply place then you can find the right magnetron at www.mwoparts.com. Be sure you always unplug the microwave before touching or trying to take the he cover off and then when you take the magnetron off also.Good luck and God bless.

Mar 27, 2011 | Emerson Black Microwave Oven

1 Answer

Won't heat any foods.


you have a problem with your magnetron tube, and when the magnetron tube goes bad, the diode almost always goes out with it. you should be able to order a replacement tube from your manufacturers website, if you cant let me know and ill try to help you more.

here are the steps to replace the magnetron tube, if you want to do it yourself that is. if you have a professional do it, it can be pretty costly.
  1. Unplug Microwave at least few hours before
  2. Remove Microwave from above oven range by somebody holding Microwave from ground unscrew the screws from cabinet
  3. Remove top cover of Microwave
  4. Make sure to keep screws correctly in a place you remember what goes where
  5. Make sure capacitor is discharged, GE manual inside Microwave says capacitor will discharge within 30 seconds once it is off. As a precaution check the voltage in capacitor to make sure there is no electricity
  6. Remove other panels around magnetron part
  7. You need to remove lot of connecting wires, should be careful to note down what goes where
  8. If possible take digital photos to refer back when you put everything back together
  9. You may need to remove transformer to easily remove and replace Magnetron. If you can't remove Magnetron easily then remove bottom panel of the Microwave and remove transformer
  10. Now it should be easy to remove magnetron
  11. Replace new magnetron and screw it. We had to put one outside part from old magnetron to new one because new one was missing that. Check to make sure both old and new one are exactly the same
  12. Make sure put all wires properly back
  13. Now put transformer back and screw it
  14. Put capacitor panel in place and screw it
  15. This might be a good time to test the Microwave to make sure it works fine now
  16. Now cover the top panels and start to screw everything
  17. Once everything assembled put the Microwave back above range put screws from top

Dec 07, 2010 | Whirlpool MH7140XF Microwave Oven

1 Answer

Ge microwave model JVM1190WY buttons work but does not cook


The problem you are having with your microwave is a common one. Not heating is a problem that can be caused by three things. I'll list the most common solution first, the magnetron that actually does the heating is what is making that noise and has gone bad. It is possible for you to also have a bad high voltage diode that has opened up, solution two, or solution three is the high voltage capacitor is not working properly as well. From my experience with microwaves I am positive that it is your magnetron that is bad. If you are not do it yourselfer you'll need to take it to a repair shop to replace. However, if you know how to use a screwdriver and can unplug a couple of wires with spade terminals on them, then you can take it off yourself, find another one and replace it the same way you took it off. The magnetron sits behind the control panel of your microwave but on top. It has cooling fins on it and has 2 terminals maybe three depending and make and model that plug into it. It has 4 screws that are easy to get to that actually holds it in place. If you do not have a good local source like an electronic parts supply place then you can find the right magnetron at www.mwoparts.com. Be sure you always unplug the microwave before touching or trying to take the he cover off and then when you take the magnetron off also.Good luck and God bless.

Feb 11, 2009 | GE JVM1190 Microwave Oven

2 Answers

Microwave not heating food


The problem you are having with your microwave is a common one. Not heating is a problem that can be caused by three things. I'll list the most common solution first, the magnetron that actually does the heating is what is making that noise and has gone bad. It is possible for you to also have a bad high voltage diode that has opened up, solution two, or solution three is the high voltage capacitor is not working properly as well. From my experience with microwaves I am positive that it is your magnetron that is bad. If you are not do it yourselfer you'll need to take it to a repair shop to replace. However, if you know how to use a screwdriver and can unplug a couple of wires with spade terminals on them, then you can take it off yourself, find another one and replace it the same way you took it off. The magnetron sits behind the control panel of your microwave but on top. It has cooling fins on it and has 2 terminals maybe three depending and make and model that plug into it. It has 4 screws that are easy to get to that actually holds it in place. If you do not have a good local source like an electronic parts supply place then you can find the right magnetron at www.mwoparts.com. Be sure you always unplug the microwave before touching or trying to take the he cover off and then when you take the magnetron off also.Good luck and God bless.

Jan 26, 2009 | Maytag MMV5207AAS Microwave Oven

1 Answer

Daewoo KOC1B0K


In that case, the most likely problems are:

- loose or corroded connection at the magnetron
- problem or loose connection on the control unit circuit board
- bad magnetron
- shorted high voltage diode

Here are some links you or someone you know can use for test help, but read their safety warnings first:

http://www.gallawa.com/microtech/diode.html
http://www.gallawa.com/microtech/mag_test.html
http://www.gallawa.com/microtech/xformer.html

You can visit Daewoo online or call them at 1-800-323-9668 or 1-800-553-4355 to find parts or find your nearest authorized service center to have them do the work.

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


Jul 18, 2008 | Microwave Ovens

2 Answers

JVM2050 Doesn't cook food sometimes


Not the magnetron if intermittent. Probably a bad smartboard. Easy to replace if you know the basic precautions to take.

Mar 05, 2008 | GE JVM2050 Microwave Oven

2 Answers

Microwave ahs power but doesn't heat.


check the magnetron and related circuit and high voltage fuse and high voltage diodes, etc..

Sep 24, 2007 | Whirlpool GH4155XP Microwave Oven

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