You should be able to get the serial number through the "Servicing" menu on the screen along with the firmware version and PCB version. Thank you, BarryKaraoke and Slinky. I went in the 'Servicing' menu ... as instructed, and WOW - the Serial number began with 2008 ..... It's a brand new Resmed S8 ...

I won an auction for a 'never used' Resmed S8 Vantage. The machine is really new. However, I can't find the serial number anywhere. I understand that there should be a 'plate' underneath the machine. Could it have been removed intentionally? Could it have been a recalled machine that is being recycl...