New to the e-cig forum and also pretty new to vapeing...I have had a Vamo V2 and ProTank2 for the past month or so but yesterday I bought a ProTank3. Long story short, the threads on my Vamo stripped and my local vape shop loaned me a Zmax until they can get my Vamo fixed. I'm having some issues with the zmax though. The instructions say that with a 1.8-2.2 ohm coil I can run between 3.2-6.0 volts. I have been running 5 volts and getting a good vape. All of the sudden I got a message that said .1o. I have looked online and I can't find a explanation for this. I called a friend and he said to run it at 3.8 volts but when I do that I get a really stong throat hit with almost no smoke. Any suggestions?