Oven over heat sensor in upper control compartment going off due to circulation fan failure.

Turn power to oven off at the breaker.
Remove access panel to upper control panel.
With the aid of an extension rod remove the hex headed screws succuring the fan to the baffle wall. Remove the fan. Replacement model did not have wire extending from it. So remove wire from original fan and attach it to the replacement fan terminals using an appropriate adapter. Install new fan in original position with original screws. Be sure to reconnect wire in the same orientation as the original fan (right side to white wire). Repeat process for the second fan in the upper control compartment. Handy trick for re-installing hex head screw in deep location....use a small piece of electrical tape to hold the hex head screw head inside the socket driver. After tightening is completed the tape will fall away from the screw.

Check that all wiring connections are back in place and tight. Re-install cover and turn the breaker back on. Test the oven out by heating it up again. It will take approximately 30 minutes to reach a steady state temperature inside the oven so that the circulation fans in the control panel turn on.