I have the full size Aspire nautilus tank but I think there is something wrong with it. Every time I hit the fire button on my device and get ready to take a draw, it sounds like it is clogged up. I am on my second coil because I thought that the first coil I had in there was flooded. When I hit the fire button, there is no sound coming from the mouthpiece, but there is sound coming from the airflow hole. I always leave it on the largest one. Can anyone help me? I would hate to have to use another coil.