Va100xt?

The fan I have in the bathroom has just stopped working. No light, rotation etc at all. Is there a fuse within the fan unit. The 13amp fuse on the sput outside teh bathroom is fine. I take it out and the main light does not work; put it back in and the main light does, so power should be gettint through to the VA100XT. wiring diagram suggests a 3 amp fuse somewhere but cannot see one. Has it been installed with a 13amp in the spur and that has not protetcted the fan so the whole fan unit has to be replaced?