Hi everyone, I did see some of the previous noise about inhale noises, but this is not a whistling. the exhale sound sounds just like it always did, but in the last week, whenever I inhale, it sounds like a vacuum cleaner.
so, what it is, is the fan gets really loud and sped up, like when wind blows through a fan and makes it spin faster than it was. I called Bennett medical, which is the company i get my supplies and originally got the machine through. though they have not returned my call as it is the holiday weekend.
I am using a Resmed S9 escape with humidifier and slimline heated hose and a nasal mask. nothing has changed in over a year as far as masks, hoses or humidifier parts (yes i clean and replace what needs to be when they need to be) I do travel with the machine, but always use the bag and ensure it is safe. it has been over a month since i last had to move it.
as a computer tech and often automobile mechanic, I can only suspect that something is wearing out, or that some kind of bypass or something has plugged up. I have seen that there is a flapper valve, and I'm not sure which direction the valve works or if it is before or after the pump itself.
I have had the machine since oct 2012 and from the setup settings i can see that I have put in close to 15000 hours on the machine. While i have been able to sleep with it as loud as it is (its over powering the music i listen to, that was to cover up the soft exhale noise) it is very disconcerting and does cause me to take longer to get to sleep.
does anyone have any ideas?