Welcome to ECF, Kyle. I was going to look for a post that I made recently to another member asking if the manual or instructions had a description of blink codes, but I'll just ask you instead of finding that post. It sounds like it may be either an auto-cutoff (which doesn't I believe make any flashes, but I could be wrong), or a no/low ohm atomizer warning. The low atomizer warning (esp. if it doesn't appear at first) could be caused by long or frequent tokes, as the coils resistance drops as it heats.