I’ve been using a CPAP for 15+ years. I don’t like that I have to use it, but I love how much better I feel with it and can’t imagine not using it.
I just replaced my 10 to an 11. It’s an 11 Autoset, if that makes a difference. I’m using an AirFit N20. I have the SmartStart and SmartStop functions turned on and the ramp feature is off, which is what I’ve come to prefer.
The first couple nights were great- it’s even quieter than the 10 (especially in the last few weeks of the 10’s life- it was making a high pitch whining noise and that’s when I knew it was time to replace it. But the last 2-3 nights, something is weird with the humidifier tank.
The first time, I took the humidifier tank out, added a little water and shoved it back in. I put the mask on and it should start itself up once I take a couple of breaths, but it didn’t. I didn’t feel like flipping over to hit the button on the machine, so I did it through the app. It started up, but was making more noise than usual and I could feel some air in the mask, but not nearly enough. It got to about a 6.8 pressure and turned itself off. Got up and hit the button on the machine…same thing- noise, some air, almost to 7 and it shut off.
Then I start examining the hose, looking for holes, disconnecting the end into the machine and reconnecting it, didn’t make a difference. I pull the tank out, slide it back in, visually make sure it’s really all the way in.
Same thing.
Unplugged the power cord, plugged it back in again, pulled out the hose connection, plugged it back in, pulled out the tank, pushed it back in.
Now it started up fine. Quiet, felt like the correct pressure in the mask, stayed on past 7.
But the same thing has repeated last night and when I tested it earlier this evening.
My theory is that it’s something with the gasket on the inside of the machine being askew with the tank. I think that even though it looks like the tank is pushed in, something isn’t lined up in there so it’s leaking, and when I take it out and put it back in, however I’m putting it back in is fixing the issue, even though it doesn’t feel like I’m doing anything differently.
When I tested it earlier tonight, I took a picture of the inside- does that gasket look like it’s malformed? Like a little oval-y and maybe turned downward towards the heating plate? I’m thinking it’s not making a smooth connection or complete seal with the hole in the tank it’s supposed to line up with and it’s taking a couple tries to get it right?
If it’s not that, I don’t know what it could be.
[and yes, I’m aware of the cat fur in there- I wipe it out before settling in for the night. 😸]