Originally Posted by mercedespeugeot
-Old Red black and bare wires into the junction box from the wall.
-Old wall oven with red black white and bare wires into junction box.
-New cooktop has red black and bare wires.
What white did you connect? You make it seem as if the only white was in the over that you removed.
If the new unit only has red and black (and ground) you should not have connected any whites to anything.