Upper oven has following condition:
- lower butterfly heating element does not heat (tried bake, convection bake, pure convection)
- Upper heating element appears to heat and work just fine
- Convection element seems to heat fine (though I do not know how to confirm)
- Oven is not usable as it never reaches baking temp
- No other issues noted - lights all work / display works

Remedies Attempted:
- Removed cover plate and hit reset button behind locking mech. Did not hear or feel click.
- Purchased a new butterfly heating element and installed it - same condition (no heat)

NOTE: Lower oven seems to work fine. I have used self-clean cycle a few times over the years, but not often. I plan never to use it again.