Wow, I'd never try taking the top off my Chuck. It comes off? I figured it was bonded or glued somehow to the body. I could see the screw inside that hides the chuck-guts, but didn't want to mess with it. This shutdown just occurred without warning. One vape was perfect, the next was nonexistent. I wondered if it might be the juice I mixed up that day, but can't see why that would do anything. It's 100 mg. diluted with PG and a few colorless drops of Lorann. Nothing different than I've done hundreds of times before. Shrug
I am considering going to 801 attys just to be done with the adapter. It bugs me and it gets all slimy from liquid. I like it better having direct atty-to-Chuck contact.