I remember as a broke 16 year old I would just switch the hardly ever used flasher with the turn flasher to get turn signals to work and leave the flasher not working. So it's real possible that both flashers are bad and since most people don't use the flashers sometimes the only time they do is to check them when the turn signals stop working. Lol It's so easy just to plug a new flasher in and see if it works. The 1 on the fuse box is normally the flashers and the turn signal one is hidden up under dash.