XL 1800 GE Humm's but it not hot
Ok, I have a GE XL1800 SpaceMaker over the range, Went to cook vegetables push the vegetable button, 2 min later it beeped and on the led screen it read, sensor malfunction. I reset the timer pushed the button again same thing. OK, I push the express button for 2 minuets 2-minutes later the time ran down but no heat. I unplugged the unit reset the clock, Ok turned off power for a day came back next day, put in a cold cup of coffee push the express button heard a deep humm then a pop the humming stopped 1 minute later the timer stopped I got cold coffee. I open the front lots of oil and icky stuff like grease. I cleaned it as best I could, I saw nothing wrong, I tested all the fuses all was fine pushed the 1 minuets express button got sparks off the top red wire connected to the capacitor, "that was not cool" there was a deep humm before it happened. Ok tested every thing again every thing check out ok, I clean and disconnected the wires from the capacitor black, red and white push the express button heard a deep humm pushed the stop button before it arc or sparked or worse. Any ideas as to what might be the problem?