I was poking around with the clean cycle lock today. The fix for my oven was so easy. Just an adjustable wrench and a twist – snapped so easy! I used a wrench on each side and tightened till snug (up to red line) and twisted. That’s it!!
I fired up the oven on a test run this morning and it seems only the top element is used in the clean cycle. In about 30 minutes my oven was well over 600 degrees.