The "Convection Bake" mode does not seem to exhibit this problem. Would that lead you to believe in either one or the other of your suggestions. Also, where in TN are you?
Upper oven works fine; lower is the problem.
o.k., it's even weirder that I thought. The control panels for the two ovens are the same.
On the lower oven (the problem one), when I set a temperature for the bake mode, it doesn't do anything for a while, then the broiler element comes on (not full blast, just kinda medium) and heats the oven to the set temperature, then shuts off. The lower (bake) element never even comes on.Should I check the lower element for continuity?