Gas tank selector fuse

Hello everyone, I'm a new B on here but have been a boat owner since the late 70's. I just purchased a 23 foot 2003 Dana Performance Boat with a 496 OH and after one day of use the gas tank selector stopped switching. It did work when I purchased the boat, the seller had the engine cover open and he switched the tank from left to right via the tank selector switch located on the dash and it did switch. I'm thinking a fuse might have blown, with that said does anyone know where the fuse is located?

Thanks,

Gas tank selector fuse