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AirSense 10 "Whistle"
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rozenbob Offline

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Posts: 17
Joined: Apr 2016

Machine: Dreamstation Auto Bipap
Mask Type: Full face mask
Mask Make & Model: Airfit
Humidifier: Dreamstation
CPAP Pressure: 16 in 11 ex
CPAP Software: SleepyHead

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Sex: Male
Location: Pensacola, Fl

Post: #1
AirSense 10 "Whistle"
After about one hour of usage, there is a low whistle that matches rhythm of breathing. Checking all fittings. Appears to be coming from the smaller angular tube in humidifier? Any fix?
05-09-2016 08:37 AM
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SaldusMiegas Offline

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Posts: 227
Joined: Apr 2015

Machine: ResMed AirSense 10 AutoSet
Mask Type: Nasal pillows
Mask Make & Model: P-10, F&P Simplus
Humidifier: integrated
CPAP Pressure: Rx:14, Set:Auto 8.0-15.0
CPAP Software: ResScan SleepyHead

Other Comments: Woot! P-10 pillows plus Ruby chinstrap for side-sleeping mouth breathers

Sex: Male
Location: Virginia

Post: #2
RE: AirSense 10 "Whistle"
Hi rozenbob,

Relatively common problem with the S10 Auto it seems. This happens with mine every few weeks or so.

The solution that works for me is to pull the humidifer out about half way and slap it back into place to re-establish the proper seal. Not hard enough to spill water, but enough to firmly reseat the air seal.

That always solves it for me. YMMV.

On second thought ... when this happens to my machine it usually whistles immediately upon when I start breathing through it. I don't recall a case where it worked fine for an hour then began to whistle. So you may have a different issue, but it sounds like an air seal leak all the same. I would still suggest to try re-seating the seals as described above. And make sure every time you insert the humidifier after topping it off that you press firmly. I actually sort of slap it into place every time after inserting it about half way to ensure a good seal.

Saldus Miegas
(This post was last modified: 05-09-2016 05:40 PM by SaldusMiegas.)
05-09-2016 05:30 PM
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Sn00zeAlarm Offline

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Posts: 72
Joined: May 2015

Machine: Resmed A10 autoset
Mask Type: Nasal pillows
Mask Make & Model: Resmed P10
Humidifier: Builtin
CPAP Pressure: 5-7
CPAP Software: SleepyHead

Other Comments: Heated hose

Sex: Male
Location: Florida US

Post: #3
RE: AirSense 10 "Whistle"
So the sound is coming from around the water tank? I don't remember mine doing this at first, but now after 2 weeks I hear it. It peaks as I inhale, which is when the fan speeds up. I wash the tank as required.
05-09-2016 05:36 PM
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rozenbob Offline

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Posts: 17
Joined: Apr 2016

Machine: Dreamstation Auto Bipap
Mask Type: Full face mask
Mask Make & Model: Airfit
Humidifier: Dreamstation
CPAP Pressure: 16 in 11 ex
CPAP Software: SleepyHead

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Sex: Male
Location: Pensacola, Fl

Post: #4
RE: AirSense 10 "Whistle"
The Unit is less than two weeks old!!
I think I prefer my old "no debt" S9
05-09-2016 06:46 PM
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partsmutt Offline

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Posts: 13
Joined: Apr 2016

Machine: ResMed A10 AutoSet
Mask Type: Nasal pillows
Mask Make & Model: AirFit P10
Humidifier: HumidAir
CPAP Pressure: 8-10, ERP 3
CPAP Software: Other Software

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Sex: Male
Location: Texas

Post: #5
RE: AirSense 10 "Whistle"
I haven't had that problem, but my DME had mentioned it when I picked up my machine. She said that occasionally the rubber seal on the humidifier tank won't seat right. She suggested that if it happens, try pulling the seal off, cleaning it and get it set in place well .

Happy Wife and kids
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05-10-2016 09:17 AM
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SaldusMiegas Offline

Advisory Members

Posts: 227
Joined: Apr 2015

Machine: ResMed AirSense 10 AutoSet
Mask Type: Nasal pillows
Mask Make & Model: P-10, F&P Simplus
Humidifier: integrated
CPAP Pressure: Rx:14, Set:Auto 8.0-15.0
CPAP Software: ResScan SleepyHead

Other Comments: Woot! P-10 pillows plus Ruby chinstrap for side-sleeping mouth breathers

Sex: Male
Location: Virginia

Post: #6
RE: AirSense 10 "Whistle"
(05-09-2016 06:46 PM)rozenbob Wrote:  The Unit is less than two weeks old!!
I think I prefer my old "no debt" S9

No worries rozenbob, lots of people require more than two weeks to get used to a new machine. You got yours figured out quicker than most who don't have this issue until much later and think their machine suddenly stopped working. Smile

I don't see this problem as a design flaw in the S10 Auto. At least in my case, properly seating the removable humidifier is the solution 100% of the time. And knowing how to prevent this by properly inserting the humidifier has reduced the number of times it happens. For a device involving air and water seals that gets removed and reinserted 365 times each year, a small number of misses that require reseating doesn't seem out of line esp when sleepy humans are involved.

Seems more like a training issue to me than a design flaw. Others have a different perspective, and of course there is some number of actual manufacturing defects that exacerbate the problem.

I never had an S9 but it's clear that people who have them really loved theirs. Maybe you are still in the return window for the S10?

If not, then be reassured that the S10 is a good machine which a lot of people also love. At least I do and I would recommend it knowing all about the whistling issue.

Saldus Miegas
05-10-2016 09:46 AM
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Hmm888 Offline

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Posts: 64
Joined: Apr 2016

Machine: Remstar Pro Legacy/AirSense 10
Mask Type: Nasal mask
Mask Make & Model: Resmed
Humidifier: Respironics/Resmed
CPAP Pressure: -
CPAP Software: ResScan SleepyHead EncorePro

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Sex: Undisclosed
Location: This side of the Big Dipper

Post: #7
RE: AirSense 10 "Whistle"
I just got a new machine yesterday and I had this whistling issue. My DME got a fresh new stock of Airsense 10s. It doesn't appear that the problem is fixed yet my loaner had no issues. I was using it (the loaner) for about 6 weeks without any of these issues. It seems to be a random issue.
07-10-2016 01:52 AM
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Jim Bronson Offline

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Joined: Dec 2014

Machine: ResMed Airsense 10 Elite
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CPAP Software: ResScan SleepyHead

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Sex: Male
Location: California

Post: #8
RE: AirSense 10 "Whistle"
Try smearing a dab of Vaseline around the insides of the air tubes of the humidifier. If your problem is the same as mine, this will stop the whistling.
07-10-2016 08:13 PM
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bons Offline

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Posts: 24
Joined: Jun 2016

Machine: Respironics bipap ASV
Mask Type: Nasal mask
Mask Make & Model: F&P Eson
Humidifier: heated humidifier
CPAP Pressure: minIpap 5, minps 0
CPAP Software: Not using software

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Sex: Female
Location:

Post: #9
RE: AirSense 10 "Whistle"
My ASV does the same thing from time to time. Sounds like someone blowing air across a pop bottle. They are replacing the machine for other reasons so I'm hoping I get lucky and get one with a better seal. Meanwhile I too do the pull out the humidifier tank and slam it back in trick.
07-16-2016 11:44 AM
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PoolQ Offline

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Posts: 986
Joined: Jul 2015

Machine: AirCurve 10 VAUTO
Mask Type: Full face mask
Mask Make & Model: Amara View
Humidifier: Integrated
CPAP Pressure: 6.2, 15, PS4.0
CPAP Software: SleepyHead

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Sex: Male
Location: Sillicon Valley

Post: #10
RE: AirSense 10 "Whistle"
When it happens for me I just wiggle the water tank and it stops, I fill it every night so sometimes I need to wiggle it and sometimes not.
07-16-2016 12:53 PM
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