Vivi head burned in one day

[flintlock62]

I ran three tanks of juice through my Vivi and cleaned my head and it aside to dry. I installed a 2nd head in the mean time and it burned out in one day. Could it be I just got a bad head? I'm using a 2.4 Ω head set at about 3.8 volts on a eGo Twist.

 

[Davenkay]

DO YOU KNOW FOR A FACT IT IS BURNED OUT? i HAVE NEVER HAD ONE GO THAT FAST, BUT ANYTHING IS POSSIBLE. dO YOU HAVE ANOTHER BASE YOU COULD CHECK IT WITH? iF IT FIRES ON ANOTHER TANK, THE POST MAY BE OUT OF ADJUSTMENT. HAVE YOU TRIED THE HEAD THAT YOU HAVE DRIED YET? JUST FISHING FOR IDEAS TO HELP YOU OUT.

 

[flintlock62]

I put another head in the tank, and it worked just fine. If the post is out of adjustment, how do I fix that?