Checking run hours on ResMed S9

Would someone familiar with the ResMed S9 Auto please tell me where to look when I get my machine to check the number of run hours? Thanks.

Press the "i" button twice, until the sleep quality screen appears.
Then, simultaneously press and hold that button and the double-check button
until the screen flickers and a wrench appears in the lower left box.
Then turn the right knob one click to the right and press the middle of it once.
Then turn the same button until it stops.
The next to last line will show "run hrs".
The location may vary if your OS is different from mine.
I certainly hope I didn't break any laws here.