Resmed s9 acting funny

[Padron192664]

I was prescribed a low pressure of 5. The machine is about 8 years old now. Thankfully I'm getting a new machine next week.

The problem I'm having with my machine now is when I just finish inhale and about to exhale I have no pressure for a brief moment and it acts like a vacuum on the nasal pillow and expands and contracts a good amount. I haven't used the machine in a few years but I don't remember it doing that. I don't have any epr selected so I'm not sure if my machine is just done. Is there any good in continuing using this machine or is it shot? Anybody hear of this before?

[Jas_williams]

Try replacing the filter on the back it could be blocked