30A ?It seems to be a bit too high for the wiper motor. 9 e$ Q& b9 s$ X* I* _2 {) U# l) j/ X
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.