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S9 Noise
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snorer131 Offline

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Posts: 1
Joined: Apr 2015

Machine: ResMed S9
Mask Type: Nasal mask
Mask Make & Model: S9
Humidifier: Not sure
CPAP Pressure: 4
CPAP Software: ResScan

Other Comments:

Sex: Female
Location:

Post: #1
S9 Noise
I've had the S9 unit for about 6 months and have had no problems. Recently the unit has become noisy with a kind of whistling noise upon exhalation. I've changed the air filter but it still is noisy. Sounds like it's deep in the machine. Keeps me awake. Ugh. Any thoughts.
04-20-2015 12:13 PM
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Terry Offline

Advisory Members

Posts: 553
Joined: May 2014

Machine: Philips Respironics RemStar Auto with A-Flex (560P)
Mask Type: Nasal pillows
Mask Make & Model: P/R Nuance & Pap Cap
Humidifier: Integrated
CPAP Pressure: Auto
CPAP Software: SleepyHead

Other Comments:

Sex: Male
Location:

Post: #2
RE: S9 Noise
(04-20-2015 12:13 PM)snorer131 Wrote:  I've had the S9 unit for about 6 months and have had no problems. Recently the unit has become noisy with a kind of whistling noise upon exhalation. I've changed the air filter but it still is noisy. Sounds like it's deep in the machine. Keeps me awake. Ugh. Any thoughts.

It has a 2 year warranty, so it sounds like it's time to bring it in for service.

The only two reasons that come to mind are that something got sucked up into the blower, or something is broken/out of place. In any case, it's not something you would want to do yourself, while it's still under warranty.
04-20-2015 12:57 PM
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trish6hundred Offline

Advisory Members

Posts: 6,436
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: #3
RE: S9 Noise
Hi snorer131,
WELCOME! to the forum.!
There are a couple threads here on the board about S9 noise.
If you look under "Possibly related threads", you will find them.
Edit: Here are the links to these threads I mentioned: http://www.apneaboard.com/forums/Thread-S9-making-noise
http://www.apneaboard.com/forums/Thread-ResMed-S9-Noise End edit.
Hang in there for more suggestions and answers to your question and much success to you with your CPAP therapy.

trish6hundred
(This post was last modified: 04-20-2015 02:34 PM by trish6hundred.)
04-20-2015 02:25 PM
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OMyMyOHellYes Online

Advisory Members

Posts: 915
Joined: Mar 2013

Machine: Respironics 560 Auto
Mask Type: Nasal mask
Mask Make & Model: Resmed Mirage FX
Humidifier: Respironics System One (no heated hose)
CPAP Pressure: 08.0-15.0 cm/H2O
CPAP Software: EncoreBasic

Other Comments:

Sex: Male
Location: Texas

Post: #4
RE: S9 Noise
Some of the S-9s have a habit of making a tiny, very very slight noise upon exhale. No big whoop if that is what it is.

I did have one (still do, don't use it any more) that started with a louder growl which I presumed was a bearing starting to make noise, meaning a bearing that was failing. It only had 1800 hours TTAF, but I had bought it used and it was long out of warranty. Resmed will not sell replacement parts, even to certified repair shops, so I am SOL. I guess I may find another used one that has something else wrong and maybe make a Frankenpap. Oh, well.

OMMOHY
04-20-2015 06:46 PM
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JWR Offline

Monitors

Posts: 455
Joined: Sep 2013

Machine: DreamStation DSX700 , PR 760 bipap auto
Mask Type: Nasal mask
Mask Make & Model: Resmed mirage FX
Humidifier: DreamStation DSXH , system one
CPAP Pressure: min EPAP = 17.5max IPAP = 21
CPAP Software: SleepyHead

Other Comments:

Sex: Male
Location: .

Post: #5
RE: S9 Noise
Quote: Recently the unit has become noisy with a kind of whistling noise upon exhalation. I've changed the air filter but it still is noisy. Sounds like it's deep in the machine. Keeps me awake. Ugh. Any thoughts.




I know that sound well ! Noticed if you exhale slowly you won't make that sound . Found I go to bed totally relax then mask up and turn on machine I don't get the whistle. Breath hard get the whistle. funny part is not all machines do it . Almost sounds like exhalation pressure is bucking the turbine . Have a S9 Vpap with about 160 hours on it , It does it . have a S9 autoset with about 570hr it doesn't .

04-21-2015 11:46 AM
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