Welcome to DC.
I would call for service and ask them to calibrate the oven temperature. Since the oven is under warranty, it should be free.
If you are using long-time recipes and the same pans that always worked with the previous oven and now they are burning, the oven is the problem.
If this is not the case, there can more than one variable.
"If you want to make an apple pie from scratch, you must first create the universe." -Carl Sagan