the broil works. but in baking the oven warms up some but the bottom element doesn’t seem to heat.
A model number may help others help you.
http://www.appliancepartspros.com/modelnumber_locator.aspx
Could be your bake element is shot.
Unplug/remove power from the unit.
Undo the screw/s holding the bake element to the back of the unit.
Gently pull the element into the oven.
Remove it’s connections and check it with a meter, should be around 20 ohms.
It is a good idea to clip something (clothespin etc.) to the wires so that they do not disappear into the back of the oven.
It is very important to remove power from the unit as even with the oven shut off many units still have power going to one side of the element.