Frigidaire Electrolux dual wall electric oven both bake elements not heating

Bake elements not heating up in both upper or lower oven. Broil elements in both ovens still heating up fine. I pulled bake elements out of both ovens and tested. Have continuity/18.4. Pulled both sensors out reading 1084. Pushed red button on both thermal switches have continuity. From reading other posts from a while back it looks like it could be either control board or relay boards. Is there something I could try to narrow down if I need to buy a control or relay board (s)?
Thanks
Tony