If you end up making your steam wand "hot touch" by accidentally dislodging the steam tube, it is possible self-repair it. You need to unscrew the assembly and reposition the upper o-ring into the right place.
Here's a video showing how to remove the steam wand and re-seat the tube and O-ring:
The key part to watch is at 1:10 in the video.
#repair #howto #DIY #documentation