Not sure why, but I still have a whole cart of liquid and can't get anything but burnt taste. If I top off then it will vape and taste good, but I have to top off every 5-10 min. I am using the filler that came with it and don't know why it is not wicking. Not sure what is going on. This thing is acting wierd. I've blew out the atomizer, and even press the switch to hear the atomizer sizzling. Not sure what else to do now...very frusterated......any help with regards to the situation....