30A ?It seems to be a bit too high for the wiper motor. ' |" i" f4 u& ~5 o0 V* k& N8 F/ g5 T
Debris builds up in the cowl areas might interferes with the movement of the wiper arms. A sticky wiper arm will sometimes causes the fuse to blow. Try wickle the arm a bit and spray WD-40 at the base NOT THE NUT, then try again.