Experiencing overheating or irregular oven cooling fan operation in your Samsung 5.8 cu. ft. Gas Flex Duo Smart Range? The PCB assembly sub (DE92-03963B) might be the solution. This genuine Samsung control board manages the oven cooling fan motor's function, ensuring your oven doesn't overheat. Before replacing, disconnect power to your range to avoid electrical hazards. Remember to protect your hands with work gloves during installation. Always verify your appliance's model number for compatibility before purchasing.