Jessica, if your fridge is still under warranty, call the vendor and have it fixed. It shouldn't have burned out on a new fridge. Usually come with a one year warranty, so I hope yours has. Replacing those lights can be very expensive, as they are not just lights, they are leds on a circuit board, with all the electronics. The smell you describe (we used to call it "dead mouse") indicate electronic overheating somewhere, probably on that board.