How long did you let the alcohol evaporate before turning the Pax on? Was it dry? I'd suggest trying to let the iso evaporate for 24 hours before use.
With my Pax on the way the possibility of off-gassing scares me. Does this only happen when it's recently cleaned? Has anyone noticed this vapor even when it hasn't been recently cleaned? If not, it seems like it's just steam from residual moisture left from the cleaning (at least I hope).
The Pax is
not off-gassing. I took mine apart to make sure that the origin was the oven and not any of the internals. The oven and vapour path
are completely sealed from the internals unless you have wrecked the O-rings at the oven end, which I have done with zero concern.
If
darkrom really got all of the resin out, then the only other source would be the ISO as he speculates. I'm pretty sure in my case it's accumulated resin, or mostly at least, because I am not compelled to go to great lengths to get every last trace of it.
If it hasn't been cleaned then it is guaranteed to give off something when heated empty.
Edit: Oops. I made this mistake before. The internals aren't completely sealed off, there is a small slit where the latching clip protrudes into the well holding the SS tube for the vapour. Since the stem from the MP does not make a leak-proof seal when it is in place, there is a convoluted path from the internals into the vapour path, but in order for anything to make it through to the oven and cause "mystery smoke" as seen in
darkrom's video, it would have to be so thick that there would be obvious mystery smoke coming out the LED cutout as well.