30A ?It seems to be a bit too high for the wiper motor. 9 [! I# ~' y- h l9 S e4 |% a6 `$ ^' E- X) R( F( h6 K! H$ T9 B0 M
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.