Helen for Model Number GE PROFILE MICROWAVE JVM1190BYC03 My microwave make a lot of noise when I am microwaving, but not when I use the convection oven. It almost sounds like it is arcing, but it does that even if it is empty. (rack etc out). What could this be? Helen
Answer Hello Helen, This sounds like the magnetron WB27X10585 or the high voltage transformer WB27X1041 is going into trouble. If either of these are replaced it is a good idea to replace the high voltage diode WB27X10597 and the high voltage capacitor WB27X10240 at the same time since they will be excessively stressed electrically from the current flow produced by the failing component. Read More... Answered by AppliancePartsPros.com | Friday, December 6, 2013