i have a fisher & paykel HC220LE and would like to know how to change the setting on it. someone told me in this forum a couple of weeks ago but i didn't have the buttons on my model that he said i needed. the only buttons on the cpap is the ramp button and a very difficult tiny dial to turn up/down...

first off....i registered and filled in my profile in order for any of you to better understand my problem and/or concerns. only thing is that the profile didn't list my cpap machine model number so i went with the closest i could find. i have been using for the past three years a fisher and paykel ...