Some have a switch ganged in a panel near the door. On ours, if this switch is off, none of the compartment light switchs will work. If it is a fuse, more than likely it will be in your house fuse panel. Hopefully, they provided a diagram on the back of the panel cover that tells which fuse does what. Happy hunting.
Oh, and welcome to iRV2!
Another edit: You might post this in the 'Tifton Owners Forum'. There is probably more Allegro owners with your coach that can better help.