Question about Microwave Ovens
The microwave power unit is dangerous and making loud popping noises with electrical sparks
Is it safe to use your microwave if it pops like this all the time randomly... And sometimes lights up in the back like a spark or something???
Posted on Feb 22, 2012
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Posted on Jan 02, 2017
SOURCE: microwave no heat
The "HUMM" indicates a breakdown in the High Voltage Side. The loud "POP" was the breakdown. You have only four Components in the High Voltage side.
1. High Voltage Transformer. You can eliminate this as the problem. Why? If it was the problem it would have blown the line fuse, and would have given off a burned transformer smell.
2. High Voltage Diode. Usually will Burn or Pop when shorted, but will then OPEN the Circuit and there is no "HUMM".
3. High Voltage Capacitor.This is the Silver Can with the two terminals on top. It can SHORT internaly between the plates (the two terminals) and give the "HUMM".
4. Magnetron. This is my number one suspect. A SHORTED Magnetron.
Posted on Feb 03, 2008
I have a GE Profile Spacemaker model JVM3670WF001, purchased I think in 2003. Pop sound, no Heat. Light goes on, carousel goes around,
Repair or new microwave
Posted on Sep 08, 2009
Probably a high voltage diode popped because contaminated grease eventually built up and made a path for a high voltsge arc to occur.. To confirm,take the outer cover off the microwave and discharge the high voltage capacitor by shorting its terminals. Then pull the plug off the magnetron side and place it near the magnetron socket. Now turn the microwave on and push the connector on the magnetron with a chopstick or a long insulated screwdriver. If no arc when you do this this confirms a bad diode.
please rate my suggestion..
Posted on Apr 13, 2009
SOURCE: microwave oven just died
If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.
If it went dead a few seconds after pressing the Start pad, that's usually a failing high-voltage transformer.
Once you've looked over the safety warnings, here are some useful links:
You can usually find helpful exploded view diagrams and order parts by entering your full model number here: http://tinyurl.com/gv383
We're happy to help and we appreciate your thoughtful rating of our answer.
Posted on Jan 13, 2008
SOURCE: loud pop with smoke
Don't know why just plugging it into a new outlet would cause that unless you have a problem with that outlet. Sounds like it may have burned out the low voltage circuitry. I would advise having the outlet checked and certified safe before plugging anything else into it. Also, it sounds like the oven is toast, (Sorry!)
You can get parts on-line from AppliancePartsPros.com/Parts
Posted on May 24, 2008
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