Thank you for the help Turns out the reason it was alarming is because the machine wasn't triggering in sync with my breathing. The fix was to set the trigger & cycle settings to low, both were on medium before.

Thanks for the reply. My machine looks a little different than in that manual, has a large LCD screen like this http://www.resmed.com/au/products/vpap_iii_sta_quicknav/vpap-iii-sta-quicknav.html?nc=patients It says to consult my clinician but they don't seem to know why it's alarming or what to do w...

I'm having trouble with my vpap III sounding the "ipap lower" alarm maybe 50 times a night. Had to resort to using ear plugs just so I can get some sleep. Seems to have started since the IPAP was changed from 18 to 20. I have a brand new mask and have checked its not leaking there, also checked the ...