Frigidaire Mod # FGFL79DBA Checked unit and appeared latch motor was not working. Replaced with new motor and checked linkage . Still did not work. Oven light was stuck in on position. Control panel would not turn it off. Assumed there was a problem with Oven Control Board and replaced with new board. Problem, new latch motor still does not work and light still on. I am an amateur, has anyone got any suggestions. Oven and everything else works okay.