No water from steam wand

"I believe that the tip of that nozzle will come off with a small crescent wrench- perhaps you could see if something is stuck in the tip or the rest of the wand?

Here's the teardown guide, if it helps."

Is your pump running at all? If you can't get water from the brew head either then the wand probably isn't your problem. If it is working then try fishing around in the wand with a paper clip, vinegar alone usually isn't enough to break up milk solids.

I have a problem where water comes out the brew head instead of the steam wand when I turn the knob, not sure why. Jus got it from a friend who never used it.