Re: High Frequency Noise on M Series Auto
Posted: Fri Jan 02, 2009 5:21 pm
I've had a similar noise but it's usually from the mask and it changes pitch based on my breathing. This one is from the machine itself and it sounds more electronic in nature.BeanMeScot wrote:I have the same machine and have heard a high pitched noise but it wasn't from the machine, it was the mask. I think it was from excess humidity.