RE: A10 Whining noise?
I believe I have fixed this problem.
So like the rest of you the whining noise was constant and louder on inhaling. One could compare it to a turbine winding up and slowing down, one could also think the RPM’s point to a bearing problem in the motor. What I did seems to have fixed it.
As I stated above I replaced the tank and filter with no results. Read post and watched videos and listen to recordings of my problem.
What I did was, remove the filter, leave the door open, remove the water chamber, grab the end of the air hose and as hard as you can blow air in the hose. With your other hand you can feel it come out the filter area and also the silicone ports at the back of the water chamber. I did this about 5 times!
It was as quiet as it has ever been all last night. Just like new again.
The A10 has a feature that when you take your mask off in the morning it will blow a blast of air for 15 seconds or so. I never took advantage of this. I would just push the button to off.
By doing this I was not blowing out excess moisture/ condensation, maybe even some dust.
I have replaced a machine before because of this and now I’m thinking I was a little hasty.
I know one night is not a good test, so I will update this if it returns.
I hope people that have this problem will chime in and try doing what I did, maybe what I did was just a fluke, I don’t know…..but mine is quite again. And I’m one happy camper.
RE: A10 Whining noise?
I don't think it is moisture/condensation. The machine should continue to run at a low speed for about 15 minutes after you push button to stop machine and this is to dry out the hose etc.
There are now two comments about slamming humidifier tank in. I have one humidifier tank that doesn't fit great and I have to push it in quite hard for it to seat fully. Wonder if that is related to those peoples findings.
This solution you found is inline with the other compressed air/vacuum solutions and I would just guess being related to dust and that blowing it backward helped free it up or something along those lines.
RE: A10 Whining noise?
Here's another thread on Apnea Board about cool down. See if it helps, that is if you're actually talking about cool down. During cool down, a snowflake appears on the PAP display.
http://www.apneaboard.com/forums/Thread-...-Necessary
INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEBSITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
RE: A10 Whining noise?
Nightynite, thanks for posting about your experiences. Last night I followed your suggestion to blow hard into the hose with the tank and filter removed, and my A10 ran much quieter. There is still a slight bit of noise, but it's much better. Going forward, I'll try to remember to do this periodically.