This happened on our Kitchenaid electric stove/oven as well! I unplugged the oven, opened up the outside panel of the oven (same side as the temp probe jack) and found a small metal tab adjacent to the jack. I opened that up to reveal the jack surrounded by moist fiberglass sheeting. A boiling pot of beans had over-flowed on that side of the range the day before. Moisture had gotten down in there and was crossing the connections. Once I dried off the exposed metallic parts and moved the moist fiberglass away from the connections, problem went away. Hopefully, a good self-cleaning cycle will dry up that moisture.