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★★★★★
★★★★★
Doug S - August 11, 2019
Verified Purchase
microwave does not heat
installed diode and microwave still does not work
★★★★★
★★★★★
George R - January 30, 2019
Verified Purchase
High Voltage Diode
Part was very easy to install. It wasn't necessary to discharge capacitor but checked just in case. The microwave was not fixed with this part. It still needed magnetron. Hardest part was finding all the screws to remove the microwave outer cover.
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Average Repair Rating: 3.2 / 5.0, 3 reviews.
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Sorry, we couldn't find any existing installation instruction that matched.
Noise and no Heat on Microwave oven.
First, I waste $65 by calling some "REPAIR" service. They showed at home and charge me that just to tell me Second, I researched on the web and ordered a part, which was not the issue. I waste abnother $72 Third, I found Part-Select and got the right answer: the Diode was the problem. Ordered the part form Part-Select and it FIx
... Read moreed it !!!
Note: I did not buy a new microwave because this one is mounted on the wall and it will cost me +$800 just the lowest price.
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Luis from Plano, TX
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Screw drivers, Wrench set
33 of 49 peoplefound this instruction helpful.
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would blow the internal 15amp fuse when pressing the start button
Used the trouble shooting guide and wire diagram found inside the microwave (thanks GE). Found the HV capacitor and diode had shorted. Replaced the capacitor and diode........works like new.
Looked at schematic to see which parts became active when the power button was pushed. From there used meter to determine diode was open and capacitor was shorted. Biggest trouble was dis-assembly/assembly required to get to electrical parts.
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6 questions answered by our experts.
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Doug
November 18, 2017
Tried the fuse first, the microwave still runs but will not heat. I am getting an electrical smell and a little crackling. Could that be the magnetron or the diode?
For model number JVM1870SF02
Hello Doug,
Thanks for your question. Based on your description, the magnetron is the more likely cause of your issue. Remember, the microwave can still contain a large amount of electricity even when unplugged, so be sure to have a licensed technician install the part.
I hope this helps.
Built in oct 1986, built into our kitchen, had only 1-repair in all those years - - great product, used often - - was working fine but then tripped cb when puhsing start / cb is ok . .What could it be?? think in past we replace 1-bulb ( a magnetron i think its called)
For model number JEM31F001
Hi Jim,
Thank you for your inquiry. If the circuit breaker was tripped the fuse might have blown in the microwave and you will need to replace it. The part number for the fuse is PS239596. I hope this helps. Thank you and have a great day!
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Ron
December 25, 2023
After a lot of use it stopped heating. It will warm 1/3 cup of water but will not make it hot.
For model number JVM6175DK3WW
Hello Ron, thank you for reaching out. Based on our understanding of the issue, we would suggest checking the high voltage diode, part number PS239843, to solve the problem. Glad to be of assistance!
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Tom
September 10, 2019
I'm not sure if this part will fix the problem. The microwave control panel functions normally but no heat is generated.
For model number JVM1870BF02
Hi Tom, Thank you for your question. There are a few parts that you could check for this issue. Please be advised, you must unplug the appliance from power and safely discharge the capacitor before attempting any repair as the capacitor can electrocute you if not properly discharged. You would be able to test these parts with a multi meter, remove them from the appliance before testing. First you should take a look at your fuse being the issue. It should be reading 0 ohms to be working correctly. You should also check your diode. You will also want to test all of your door switches to make sure that they are working. They should also be reading 0 ohms to be working correctly. If those parts are fine then the issue might either be in your capacitor or your magnetron itself. I hope that helps. Good luck with your repair.
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Steven
July 28, 2021
I have a convection microwave, microwave does not produce any heat in microwave mode however, convection mode does so this rules out any switches. This leaves the magnetron, diode or magnetron thermostat correct?
For model number CVM517P3M2d1
Hello Steven, Thank you for the question. This could be caused by a defective Magnetron. The magnetron can be tested with an multi meter set on the highest scale. Across the terminals, you should read 0 ohms (or .5 ohms). Test both terminals to ground with one lead and make sure it is not shorted. We hope this helps!
no heat and loud noise. suspect it is the diode, since all 3 door switches work. I also tested the fuse and it is fine. to access the high voltage diode will I need to remove from the wall and take shell off?
For model number pvm9179sk4ss
Hi Matthew, thank you for the question. Based on the description that you have provided, we would recommend checking the high voltage diode, part number PS239843, as it is most likely faulty and may need to be replaced. Also, you may need to remove the microwave from the wall and take the shell off to remove this part. We hope this is what you were looking for!
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