When I turn my oven to bake , the broiler element comes on as well. Both bottom and top elements come on ,stay on and stay fire red hot! so of course the broiler burns everything…
Here are your parts
http://www.appliancepartspros.com/partsearch/modelsearch.aspx?model=RF368LXMT
See the attachment for your tech sheet.
Sounds like a control board problem.