So my buddy just bought his first PV. He got the sigelei ZMAX V2 kit. From vaporheads.net. I am trying to set it up for him but as soon as I screw my carto tank on the device it starts firing even if the the device is turned off. I don't own one if theses so I am not use to the menu system. Has anyone ever seen or heard of this. Please let me know ASAP.