Help with Resmed Malibu VPAP

Finally convinced my Dad to get tested and he did but he's having trouble with his new machine. He tells me he doesn't feel any different - still sleepy all the time. I managed to access the clinical menus and here's what I found:

Setting Value
Mode Vset
Press Sup 4
ASET max 20
ASET min 5
IPAP Max 2.8s
IPAP min .5s
Exhalation med
Trigger med
Cycle med
Max Settle off

Result Day Wk Mth
Leak 12 l/min 12 l/min
VT 400-600 350-650
Resp Rate 15-20 16-21
MV 7.4-11.6 7.1-0.0 6.9-11.8
Press 13.2 13 11.8
AHI 12.3 12.6 11.2
AI 1.4 1.1 3
Usage 5.3 4.3 5.2

Right off I notice two things: AHI higher than what it should be and the low usage (probably because of the high AHI).

I suspect the machine's clearing the apnea's (AI <=3) but not the Hypopnea's (hence the 12 AHI). And I suspect it could be tweaked to fix that but not sure what some of these settings and measures are? I've guessed on some but other's I'm not sure.

Would that be in the clinical manual? Does someone have one they can send me?

Thanks.

Sorry, I couldn't get the table to line up nicely.

Maybe this is better. I took out some rows that didn't seem to have the same number of columns. It's not perfect, but more readable, at least on my browser in preview mode.

I'm not a doctor, but if it were me, I'd change these two things:

ASET min 5 -- I'd set the min at 8 or 9 if raising the minimum pressure doesn't bother him.
IPAP Max 2.8s -- I'd set that for as as high as it allows.