Oven Wont Bake, Just Broil

My oven wont bake, but the broiler works. When I turn it on, nothing happens… Is there a part I can try replacing before buying a new oven?

A model number may help others help you.
http://www.appliancepartspros.com/modelnumber_locator.aspx

Hotpoint is GE so getting tech info on this unit may be difficult.
GE likes to keep everything a secret.

The model number for my hotpoint oven is RGB746DEP. Any information on what part I may need would be greatly appreciated! Like I said, the broiler and the range work, just doesnt work on the bake setting…
Thank, Jennifer