Did you try priming the atty? Drop a few drops on it, put empty cart on, puff like a cigar, repeat. After 2 -3 times of that, you should get good vapor production. Also, if your atty is only get a little warm, and not as warm as usual, then its probably wore out. I lost two last night, one went completely out, and the other is at very low vapor production and does not get very hot, just a little warm.