Help with Setup on a INtellipap (Devilbiss)

[Kluemaster]

A Friend has a intellipap auto that he's not using anymore, and he's offered to let me have it. (i've been using a PB Goodknight 420G for several years).

I have a couple questions though. the one time I tried to use this machine, it stayed at 4cm of pressure the whole time. i even tried to hold my breath thinking that it would kick up (max is set to 20), but it never changed. Is there something wrong witht that machine?

Also, If i were to get it, does anyone know how i can change the pressure? My prescription is for 10cm of pressure, and if it doesn't autoramp up when i have an apnea, I'm left wondering what is the purpose of this machine?

Thanks to any light that can be shed on this for me.

[Hawthorne]

Are you sure it's an Intellipap AUTO and not a Intellipap that is a straight cpap set at 4 cm? or an auto set in cpap mode? I just thought of that when you said it stays at 4.

A setting of 4 cm does seem low but it is behaving like a straight cpap or an auto set in cpap mode. You did say the maximum is set at 20 though. It's just a thought.