Don't know if anyone else has had this happen, but recently my Zmax has started having issues with overpowered firing when in power (RMS) mode. Everything works fine for awhile (anywhere from a few hits to half a tank or so), but eventually I end up getting a
very hot hit that, more often than not, blows the coil in my carto. When it doesn't blow the cartos, it will usually fire fine the next time but soon gives another hot hit. It's like it spontanously decides to go into mean mode on a whim.
Has happened with 2.0ohm Boges, 2.6ohm Kangers, 3.0phms Smoketechs (all at 7 or 7.5 watts) and 2.4ohm Pheonix bottom coils @ 6 watts. The last Pheonix got so hot before it blew that it melted a hole in the tube and I only fired it for a couple seconds as I saw the bright orange glow of the coil and let off before I even started puffing on it.
In every case it happened I was using it with 2 18350s. I've since switched to an 18650 and am using it in VV mode to preserve my carto supply and haven't had any issues in over a week, but having variable wattage was the whole point in choosing to buy it so that's not an ideal solution. Anyone else have this happen and more importantly, anyone have an idea how to keep it from happening?
I'm going to do more playing around to troubleshoot more when I get a new batch of cartos but thought I'd pick brains first before sacrificing more cartos.
