So here is an update to my last post, and the only reason I'm spending time on this is because I am now an even bigger fan of Arizer and I recommend the Extreme to everybody. I never did find a phone number, but ended up getting a response by email just 4 hours later by a nice woman named Debbie. She explained the probable cause of the malfunction (based on my description in the first email) to be the soldering connection between the heating element and the circuit board, and provided directions on how to ship it in for repair or replacement. The process was personal and informal (no RMA#, no receipt, no questions) and the only thing they needed was my name and address to ship it back to, included in both the email and the box. I paid for the shipping there, and they paid for the shipping back. The total turnaround time was about a week. I now have a brand new device courtesy of my new friends at Arizer.
:thumbsup: