I have had issues with some clearomizers... They stopped working on my ego-T 18650 clone, but worked on my VV Lambo v4... That lasted about a week or so longer, then quit working there too... When I do the resistance check, one reads 0.0 and the other "F1"...
I tried soaking them in vodka to help clean them but it does no good...
It is a $3-5 disposable part I think ...