Microwave quit heating. Found bad hv cap replaced it and hv transformer. Diode checked good with 120 volts applied. Magnetron reads .3 ohms and nothing to case ground. I think this reading is good but still think magnetron is bad any help appreciated.
John J for Model Number jvm1860sd001
Answer Hello John,
You will want to check the magnet on the magnetron for cracks. The .3 ohm reading is good but if there is a cracked magnet then the magnetron will read good but not work. You will also want to check the thermal fuse on the magnetron to make sure that it is good.