Hey Mittzy, I got exactly the same thing with mine,Sometimes runs for months then pull in for fuel, switch back on and nothin.Last time it happened the clocks stuck in the same position as yours and when I replaced the fuse and restarted the speedo an rev counter were way off, took a few restarts before they came back to normal . The reason is that the fuse ain't held tight in the fusebox and that's what causes the meltin . I always carry a couple of spare 30 amp fuses. This winter I'm gonna bypass that circuit and wire in a 30 amp resetable breaker switch.