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S9 making noise
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trish6hundred Offline

Advisory Members

Posts: 6,430
Joined: May 2012

Machine: Resmed S9 AutoSet for Her
Mask Type: Full face mask
Mask Make & Model: Fisher & Paykel Simplus
Humidifier: H5i Heated Humidifier
CPAP Pressure: 10 - 7-20 Cm H2O
CPAP Software: Not using software

Other Comments: I started CPAP in 2008. Totally blind since birth.

Sex: Female
Location: Missouri, USA

Post: #11
RE: S9 making noise
(09-06-2013 07:58 PM)awakeiam Wrote:  Ohhh, I didn't realize that S9's had a noise problem. I'm really lucky mine is nice and quiet, especially since I bought the thing on Craigslist.
Hi awakeiam,
Not all of them have noise problems. Both my backup and newest machines have a whistle on the breathing out but it's not enough to bother me. It's good that your machine is quiet
Oh by the way, WELCOME! to the forum.!

trish6hundred
09-06-2013 08:39 PM
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ypeels Offline

Members

Posts: 16
Joined: Aug 2013

Machine: ResMed S9 autoset
Mask Type: Nasal pillows
Mask Make & Model: Swift FX
Humidifier: H5i
CPAP Pressure: 8-11
CPAP Software: ResScan SleepyHead

Other Comments:

Sex: Male
Location: New England

Post: #12
RE: S9 making noise
It was dead silent when new, just getting wheezy!!!

Monday I'll call the DME and talk about a replacement.
09-06-2013 08:59 PM
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alby_c Offline

Preferred Members

Posts: 81
Joined: Aug 2013

Machine: resmed s9 autoset
Mask Type: Nasal pillows
Mask Make & Model: Resmed Airfit P10
Humidifier: Resmed
CPAP Pressure: 6 - 12
CPAP Software: ResScan SleepyHead

Other Comments:

Sex: Male
Location: Brisbane, Australia

Post: #13
RE: S9 making noise
To ask a silly question - you sure its the machine and not the mask where the noise is coming from?
Regardless - with a new machine, barely settled in - take it back for a new one - forget repairs!

Oh, and I third Zonks comments
09-08-2013 07:59 PM
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ypeels Offline

Members

Posts: 16
Joined: Aug 2013

Machine: ResMed S9 autoset
Mask Type: Nasal pillows
Mask Make & Model: Swift FX
Humidifier: H5i
CPAP Pressure: 8-11
CPAP Software: ResScan SleepyHead

Other Comments:

Sex: Male
Location: New England

Post: #14
RE: S9 making noise
Well, I walked into my DME this morning and told her of the noise. I demonstrated it for her and she said she would swap it out.

She came out with another unit and set it up. She said try it and went to great her next customer.
As she was out I checked the S/N. Unit made in 2012. (same as my current unit)
Checked the software and it showed 905....my first unit had 907.
Worst of all the replacement unit whistled on exhale like my original one!

When she came back in, I told her it did the same thing and told her I would like a newer unit with the latest software. She looked confused and I showed her how to determine date with S/N and check software version in menu. She said she learned something new and got me a newer unit made this year with 907 software!

Best of all the new unit is quiet!!

Happy so far and she told me if any problems, just come back in.
09-09-2013 02:50 PM
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Kritiker Offline

Preferred Members

Posts: 27
Joined: Sep 2013

Machine: ResMed S9 Autoset
Mask Type: Nasal mask
Mask Make & Model: ResMed Mirage Activa LT
Humidifier: ResMed S9 H5i
CPAP Pressure: 10-20
CPAP Software: ResScan

Other Comments:

Sex: Undisclosed
Location:

Post: #15
RE: S9 making noise
One of the noises my S9 made, a whistling, I was able to determine occurred whenever I had excessive rain-out and a wet mask.

I recorded my S9 overnight and came up with the following:

Normal operation:
.txt  S9 Normal2.txt (Size: 68.92 KB / Downloads: 277)

Brief wavering, early in the night. I don't know if it repeated later.
.txt  S9 noise1.txt (Size: 45.61 KB / Downloads: 260)

Higher pitched noise on breathing out that got worse as the night progressed and stopped (at least for a while) when I turned the machine off and then on again.
.txt  S9 Noise2.txt (Size: 62.76 KB / Downloads: 308)

I was unable to post MP3 files so I posted these recordings as text (TXT) files. To listen to them, you will have to change the file extensions back to MP3 after downloading them.

I was unable to get a recording of the wet mask whistling that night, so that's not included here.

Even making these noises the S9 is quieter than the Respironics unit I tried recently and both are quieter than my older Respironics.
09-19-2013 12:30 PM
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Bobshouse Offline

Preferred Members

Posts: 58
Joined: Aug 2012

Machine: Resmed S9 Auto
Mask Type: Nasal pillows
Mask Make & Model: Tap Pap or The Breeze
Humidifier: Resmed H5I
CPAP Pressure: 10 Auto to 20
CPAP Software: ResScan SleepyHead

Other Comments:

Sex: Male
Location: Central California

Post: #16
RE: S9 making noise
They may be quieter, but the constant sound of breathing or a motor can be considered "white" noise, the whistle is truly annoying. I can't even get my DME to call me back. I've called and left messages with the receptionist for the past 4 days. Told her yesterday that if I didn't receive a call back, I was driving up their Monday...I guess they really are "Craprea".
09-19-2013 04:19 PM
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Kritiker Offline

Preferred Members

Posts: 27
Joined: Sep 2013

Machine: ResMed S9 Autoset
Mask Type: Nasal mask
Mask Make & Model: ResMed Mirage Activa LT
Humidifier: ResMed S9 H5i
CPAP Pressure: 10-20
CPAP Software: ResScan

Other Comments:

Sex: Undisclosed
Location:

Post: #17
RE: S9 making noise
It is that very decision I am trying to make. The whistle is annoying but the S9 I currently have is so much quieter, even with its whistle, than the Philips/Respironics 560 APAP I tried that it is the lesser of two evils for me.

The whistle on my machine isn't as obvious as the one that DreamDiver mentions in post 95 of the other thread, S9 AutoSet - Noise at the breathing out!. [I cannot yet link to it.]

I am concerned that, if I try to get a better S9 that I will only get a worse one.
09-19-2013 05:10 PM
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trish6hundred Offline

Advisory Members

Posts: 6,430
Joined: May 2012

Machine: Resmed S9 AutoSet for Her
Mask Type: Full face mask
Mask Make & Model: Fisher & Paykel Simplus
Humidifier: H5i Heated Humidifier
CPAP Pressure: 10 - 7-20 Cm H2O
CPAP Software: Not using software

Other Comments: I started CPAP in 2008. Totally blind since birth.

Sex: Female
Location: Missouri, USA

Post: #18
RE: S9 making noise
Hi Kritiker,
WELCOME! to the forum.!
Hopefully, you can get a quieter S9AutoSet.

trish6hundred
09-19-2013 07:24 PM
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Kritiker Offline

Preferred Members

Posts: 27
Joined: Sep 2013

Machine: ResMed S9 Autoset
Mask Type: Nasal mask
Mask Make & Model: ResMed Mirage Activa LT
Humidifier: ResMed S9 H5i
CPAP Pressure: 10-20
CPAP Software: ResScan

Other Comments:

Sex: Undisclosed
Location:

Post: #19
RE: S9 making noise - whistle on exhale - it IS the unit itself
Here is a summary of what I have learned about the S9 (AutoSet, S/W 0907, from brand new to 160 hours) whistle-on-exhale problem in the last few days, from this board and from my own limited observations (marked with #):
  • not all S9s have it
  • some S9s have it worse than others
  • it occurs with different mask and hose types #
  • it occurs with and without the H5i humidifier #
  • it occurs with or without the filter - dirty, clean or missing #
  • it occurs with no humidifier, no mask and no filter, just breathing into the air outlet – but is difficult to hear – so not terribly useful as a test. #
  • it occurs with and without using the ramp feature #
  • it occurs in both APAP (4-20 & 10-20) and CPAP (12) modes #
  • It occurs at all CPAP pressures from 4 to 20 - very quiet at 4 and 5, then gets louder at higher pressures #
  • occurs with both EPR set on and off #
  • some people can live with the whistle and some can't
  • somepeople can hear it and some can’t
  • some machines don't have the whistle and never get it
  • some machines start out quiet and develop the whistle
  • some machines start with a quiet whistle which gets worse
  • whistle may be present only some of the time and/or get better or worse (in my case) as the night progresses.
  • I have seen one report of a whistle that disappeared
  • the whistle seems to travel up the hose to the mask. I got a second, younger, listener to confirm that the whistle came from the machine and not from the mask. #
  • other whistles can also be caused by any number of things apparently, including dirty filters, mask/hose leaks, poor seals etc.
(This post was last modified: 09-22-2013 01:46 PM by Kritiker.)
09-22-2013 01:38 PM
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vsheline Offline

Advisory Members

Posts: 1,907
Joined: Jul 2012

Machine: S9 VPAP Adapt (USA Model# 36007, not better 36037 or 36067)
Mask Type: Full face mask
Mask Make & Model: F10 or SimPlus w/ 2Liners. MirageQuatro & Gecko gel pad
Humidifier: H5i
CPAP Pressure: 15 EPAP, PS 5-10
CPAP Software: ResScan

Other Comments: Marfan Syndrome, chronic bradycardia, occasional Cheyne-Stokes Respiration

Sex: Male
Location: California, USA

Post: #20
RE: S9 making noise - whistle on exhale - it IS the unit itself
(09-22-2013 01:38 PM)Kritiker Wrote:  Here is a summary of what I have learned about the S9 (AutoSet, S/W 0907, from brand new to 160 hours) whistle-on-exhale problem in the last few days, from this board and from my own limited observations (marked with #):
  • not all S9s have it
  • some S9s have it worse than others
  • it occurs with different mask and hose types #
  • it occurs with and without the H5i humidifier #
  • it occurs with or without the filter - dirty, clean or missing #
  • it occurs with no humidifier, no mask and no filter, just breathing into the air outlet – but is difficult to hear – so not terribly useful as a test. #
  • it occurs with and without using the ramp feature #
  • it occurs in both APAP (4-20 & 10-20) and CPAP (12) modes #
  • It occurs at all CPAP pressures from 4 to 20 - very quiet at 4 and 5, then gets louder at higher pressures #
  • occurs with both EPR set on and off #
  • some people can live with the whistle and some can't
  • somepeople can hear it and some can’t
  • some machines don't have the whistle and never get it
  • some machines start out quiet and develop the whistle
  • some machines start with a quiet whistle which gets worse
  • whistle may be present only some of the time and/or get better or worse (in my case) as the night progresses.
  • I have seen one report of a whistle that disappeared
  • the whistle seems to travel up the hose to the mask. I got a second, younger, listener to confirm that the whistle came from the machine and not from the mask. #
  • other whistles can also be caused by any number of things apparently, including dirty filters, mask/hose leaks, poor seals etc.


If I remember correctly, one member said his S9 machine only whistles while in a certain pressure range. During the Ramp time, the machine will start ramping silently and later a slight whistle will start, and later still will stop while continuing to ramp up. The whistle does not reoccur until the next time the machine is in a pressure range part way through its ramp.

Membership in the Advisory Member group should not be understood as in any way implying medical expertise or qualification for advising Sleep Apnea patients concerning their treatment. The Advisory Member group provides advice and suggestions to Apnea Board administrators and staff on matters concerning Apnea Board operation and administrative policies - not on matters concerning treatment for Sleep Apnea. I think it is now too late to change the name of the group but I think Voting Member group would perhaps have been a more descriptive name for the group.
(This post was last modified: 09-23-2013 02:16 AM by vsheline.)
09-23-2013 02:15 AM
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