How do i install a magnetron tube in my JVM1653SHO3 microwave

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.

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?

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.

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

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.

REPLCE THE MAG TUBE AND ***

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.

If you need to ask how to do this task, you may have no idea of the extremely high voltages that exist under the cover, even when unplugged. I would advise a competent person changes it for you.

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.

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

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