I have this exact Model Unit at first it worked fine but now it has several issues.
1)It no longer turns off after I wake up it keeps running even when i turn off the unit unless completely unplugging it. It sends pulses of air for a long period of time almost like its some kind of a cool down period?
2)Second the unit no longer gets up to full pressure.
3)Third CPAP machine no longer communicates with the App this started exactly at the end of the year so seems the company who sold it stopped supporting it and turned off this feature on the calendar year?
4) The humidity option also stopped consuming water like before so its obvious that the feature although is selected is not working properly anymore.
5)The company who sold the CPAP unit to me only wants to sell new units and not support this machine when the machine is only a few years old.