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Originally Posted by: abadfish66  The problem is your magnetron tube is leaking RF. The mag tube comes on 2-3 seconds after you hit start, and the RF interfears with the board and shuts it down. Drop the front of the control panel down and watch, it wont happen.. Get a new mag tube put in and you'll be good to go. Based on your knowledge of the appliances operation it appears that you may be able to assist me with diagnosing a problem with a GE JVM1650WH01. The light and the turntable will not operate but the unit will still heat food. The sound level is greatly reduced and occassionally both the light and turntable will come on and it will operate normally. Thanks Ken
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Originally Posted by: kenmoore200000 Based on your knowledge of the appliances operation it appears that you may be able to assist me with diagnosing a problem with a GE JVM1650WH01. The light and the turntable will not operate but the unit will still heat food. The sound level is greatly reduced and occassionally both the light and turntable will come on and it will operate normally.
Thanks Ken Answered here: http://forum.appliancepartspros...peration.html#post165775Gene.
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Originally Posted by: abadfish66 The problem is your magnetron tube is leaking RF. The mag tube comes on 2-3 seconds after you hit start, and the RF interfears with the board and shuts it down. Drop the front of the control panel down and watch, it wont happen.. Get a new mag tube put in and you'll be good to go. Very good information. after resetting the clock many times I dropped the front of the control panel down 2" using a wire tie and the microwave operates perfectly. Ordered the magnetron.
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Originally Posted by: abadfish66 The problem is your magnetron tube is leaking RF. The mag tube comes on 2-3 seconds after you hit start, and the RF interfears with the board and shuts it down. Drop the front of the control panel down and watch, it wont happen.. Get a new mag tube put in and you'll be good to go. I experienced this same issue with the oven shutting down after a few seconds. My impression was that something was disrupting the control circuitry when the oven was in operation, so it was good to see your confirmation. I dropped the control panel down and, like you said, the oven ran without problem. Just for the heck of it, I took some aluminum foil, formed it into a rectangle about 5"x4" and taped it to the wire bundle behind the circuit board. I then remounted the control panel, turned on the oven, and it ran fine. I imagine that the foil is providing enough RF shielding to prevent the magnetron from messing up the board. Here's my question: Could the leakage from the magnetron be harmful? Should I not run the oven in this condition or is the amount of RF being leaked probably pretty small and as long as the foil shielding works, I can use the oven? I'd really appreciate your opinion. Thanks!
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That shield you made of aluminum foil can be used only for a test purpose. It is not save to use on a regular basis. You have to replace the magnetron ASAP.
If you can post the complete model number of the microwave I might be able to find a better price for you.
Gene.
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Originally Posted by: Gene That shield you made of aluminum foil can be used only for a test purpose. It is not save to use on a regular basis. You have to replace the magnetron ASAP.
If you can post the complete model number of the microwave I might be able to find a better price for you.
Gene. Thanks a lot for your reply! I have the Model JVM1430WD002. I'd appreciate any information you have on buying a replacement magnetron. Also, is there a step-by-step description of how to replace the magnetron in the oven? Thanks, again. Do you recommend replacing the diode with the magnetron? Looks like together they add up to more than the cost for a new oven. Also, I found a good video on YouTube showing how to replace the magnetron and diode if I decide to go that way.
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Originally Posted by: Gene That shield you made of aluminum foil can be used only for a test purpose. It is not save to use on a regular basis. You have to replace the magnetron ASAP.
If you can post the complete model number of the microwave I might be able to find a better price for you.
Gene. I have purchased a new magnetron but was wondering if the "leakage" is enough to be a problem for anything more than the board. Would the magnetron eventually fail and is operation hazardous? If the board weren't so sensitive you'd never know. I am an electronics technician and a little awed that you figured this one out.
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Originally Posted by: Caladan ...I'd appreciate any information you have on buying a replacement magnetron...
...Do you recommend replacing the diode with the magnetron?... It is a good idea to replace the diode at the same time. I found the best prices on both parts. - The magnetron Part number: AP5183463
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Originally Posted by: bobcls ...Would the magnetron eventually fail and is operation hazardous?... It's already did fail and it's better not to play with it. Even if it is not hazardous now, it can become hazardous at any second. If you don't like to spend money for a new magnetron, replace the microwave. Gene.
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Originally Posted by: Gene It's already did fail and it's better not to play with it. Even if it is not hazardous now, it can become hazardous at any second. If you don't like to spend money for a new magnetron, replace the microwave.
Gene. Gene - Thanks for your time and advice. If my issue was due to a failure in the shielding of the board, the foil would be a good fix. Sounds like I'm dealing with a failing magnetron, which is certainly something much more serious. Not wanting stray RF emanating from the oven, my alternatives are to either replace the magnetron and diode for about $100, or the entire oven for $200 (Home Depot). Considering the oven is seven years old, I think I'm going to go with new. Thanks again for your help!
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