for the past few days my 601 has been acting up a bit. Vapor production is down slightly, flavor is down significantly. I checked my battery and it was covered in liquid, but it still lit the LED and produced vapor. After drying it off it is still able to be charged. I just put in the other battery, and now after i drag on it, I can hear a hissing sound coming from the mouth piece for about half a second after i stop inhaling (almost like an iron after picking it up off your clothes). Also, when I drag on it I hear a squeaking sound which I believe is from the liquid. I have been using my pipe like a pacifier and I have no idea whats going on. Any suggestions?