Sorry for the delay of a response. What I did was hold down the heat and ramp buttons while powering on the machine. I think I got the error code because I was holding down the arrow buttons instead. No more errors. And I was able to change the pressure to match that of my prescribed cpap machine. T...

I have an older remstar pro with c-flex I would like to bring on camping trips or for when I'm not sleeping at home. I've have a newer cpap at home. I just found my backup machine. I've changed the pressure on it in the past using online directions with no problem. Now I'm getting an e-8 error. The ...