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How do i install a magnetron tube in my JVM1653SHO3 microwave

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There are a ton of screws to remove...

You'll need to pull it from the wall, and it's easier if you still have the installation instructions.

If not, you can download GE owner's manuals and installation instructions here.

I recommend two people to pull it down due to the weight and awkwardness.

Next remove the outer cover, then you'll see the various screws you'll need to remove to get it out.

You can usually find helpful exploded view diagrams and order parts by entering your full model number here.

There should also be a "mini-manual" hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting & testing.

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

Posted on Aug 19, 2008

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1 Answer

Micowave blows the fuse when turned on


The transformer that makes hi voltage for the Magnetron tube is causing the fuse to blow. This may be a bad Magnetron tube or a shorted winding in the transformer. Price for the repair may be too close to the price for a new oven, so check with a repair center before deciding to replace it.

Aug 08, 2015 | Sharp Microwave Ovens

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Micowave runs but doe not heat.


If it looks and sounds like it's running but doesn't heat, one possibility is that the magnetron tube has burned out. This is the electronic tube that emits the microwave radiation. Another possibility is that the control circuit that regulates turning the magnetron tube on and off for defrosting and lower-than-100-percent heating rates could be faulty. Try heating with the defrost setting and at full power and see if either method results in any heating. The cost of replacing the magnetron at a repair shop could be high enough that you might rather just buy a new microwave oven. My father replaced the magnetron tube himself, but he's an electronic engineer. I wouldn't recommend that just anyone try it. How new/old is it?

Mar 10, 2015 | Microwave Ovens

1 Answer

NO HEAT COMING OUT WHEN I HEAT UP THE FOOD.


No heat coming out because the magnetron tube which responsible for generating the microwave energy is not working anymore! You must replace it with the same rating. But before doing "condemning" the magnetron, its nearby fuse might be blown better replace it first (if blown) with the same rating its cheaper than the magnetron tube.
Hope my answer help you.

Apr 04, 2011 | GE Spacemaker JVM1640SJ 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

EVERYTHING WORKS ON IT BUT IT WILL NOT HEAT ANYTHING UP


The Magnetron tube is what generates the microwaves that causes the heating.

If it runs but there is no heating then either the tube is bad, the overheat safety is bad, or the controller is bad. The tube and controller are both expensive and I suggest purchasing a new microwave instead of trying to repair it if the microwave is older. If the controller seems to be working for everything else then the tube is probably the culprit. You can take the unit apart (unplug it first!) and remove the magnetron tube and take it to a parts store for replacement. First check the safety (if your unit as one) and make sure it is closed (you'll need to ohm it out with a ohmmeter).

The tube usually goes bad when the oven is run without anything in it or there is a lot of reflective items in the microwave (i.e. metal, foil, etc) . What happens is the microwaves bounce around inside the cooking cabinet and never get absorbed by anything. So they end up bouncing back to the magnetron and heating it. The magnetron has metal in it. The tube then overheats and fails. The better microwaves will have a safety that shuts the magnetron down if it overheats.

If this helps you, please select YES to the first two ratings questions. Thank you, and Good Luck.

Oct 13, 2009 | Goldstar MV-1615 Microwave Oven

1 Answer

Microwave Magnetron tube has arced


REPLCE THE MAG TUBE AND ***

Feb 08, 2009 | LG Microwave Ovens

1 Answer

Microwave doesn't heat anything


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.

Jan 03, 2009 | Microwave Ovens

1 Answer

Replace a magnetron tube


Magnetrons cannot be 'repaired,' only replaced. While the cost of them has decreased by about 75% over the last couple of decades, the parts you receive are often inferior to the original and will show this only after installed and operating and then the time required for different tasks may be much longer.  Unless there is something unique about the unit, I advise replacing it.

Oct 16, 2008 | Maytag MMV4205 Microwave Oven

2 Answers

Sharp r-1481 950 Watt microwave oven problen


Found the answer by calling a Sharp technician and they said it was the magnetron tube, which is not worth fixing :( Thought I'd pass this on to anyone that has yet to find out.

Oct 15, 2008 | Sharp R-1481B Microwave Oven

2 Answers

Need install schematics for magnetron tube for ge jvm1440ba


You can download GE owner's manuals and installation instructions here.

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

Jul 27, 2008 | GE JVM1440 Microwave Oven

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