This has happened before, but it was always a loose connection at the bulb before. I could fool around with the wire for a minute or two and it would start flashing again. That doesn't work now, so I don't know what to do. Should I replace the bulb? Is there an easy way to tell what's wrong without replacing things? I know it could be the flasher itself too, but I don't know where to find that. I'm sure you guys can have me straightened out in no time. 

