Just stopped in to see how all you guys and gals are liking your Pax. I haven't caught up will all the details but I get the drift that multiple users are having multiple probs with the Pax.
I have experienced some of the same issues (those that i read about anyway) and have resolved all of them without changing anything or contacting the manufacturer.
Most problems I have read about so far are due to one thing: Residue which causes mouthpiece sticking. When the vapor condenses on cooler parts, such as the mouthpiece, it gets stickier as the residue builds up around the area where the draw tube and mouthpiece join. The switch that tells the unit that the mouthpiece is off activates the heat setting indicator. Incorrect led indications mean that switch is stuck. If the Pax signals the heat setting when the mp is installed, the mp gets stuck, or other similar problems, you are due for a quick cleaning. I heard they are sending out bigger guage mouthpieces, which should mean cleaning less often.
Cleaning tips:
Keep the unit oven up while cleaning out the draw tube! If iso gets in the top around the heat level switch it will cause it to stick a bit. (at least in mine) Upside down excess drips out the draw tube, then swab out the oven with a qtip. Don't soak the pipe cleaners or qtip with iso, jus moisten them. Run the pipe cleaners all the way through a couple times. After you get the oven swabbed out with a qtip and dried clean the top of the tube near the heat setting switch. Swab/swirl a qtip with a drop or 2 of iso to get the top of the tube clean. Don't get any iso on or near the switch. I dunk the mouthpiece in iso for a few minutes then swirl a pipe cleaner inside it. Then I blow it out both ways. Finally drop a couple drops of iso on and in the metal end of the mouthpiece. Holding the Pax upside down inset the mouthpiece and click in and out a few times. Then remove the mouthpiece and swab the top of the draw tube again. That little bit of iso in there while inserting/removing cleans the latching mechanism.
It took a lot of text to explain it but it only takes a few minutes once a week. No sticking, no random incorrect led indicators, no problems at all really.
The Pax is a tool and like any other tool you have to keep it clean for it to function properly. Are there any other probs folks are having that I missed? No battery/charge probs here thankfully.
TIP!!!! You will love this. If your Pax blinks red to indicate low battery and won't heat up: Click the mouthpiece in and out a few times (off/on) and it will stop with the warning and heat up the oven anyway!!! That is so cool!