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ResMed S9 whistle problem - Solutions?
#11
(03-02-2013, 01:29 AM)PaulaO2 Wrote: Did you try the pillows on any other mask setting? As in telling the machine it was a nasal mask instead?

I wonder how screwy the data is when the mask is wrong?

I doubt it makes any difference. All it does is change the pressure by a small amount, probably just a fraction of a centimeter.
Sleepster
Apnea Board Moderator
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INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
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#12
If the sound is coming from the flow generator then there is not much you can do to get rid of it.
I suspect there is some kind of regulated dump valve that opens when exhale occurs.

So...what to do?

Midasize it!

Build an acoustic enclosure around it.
(sound proofed cabinet for it)

You can buy these things but they aren't cheap. It is basically a wooden or sheet metal box lined with
heavy foam rubber and ventilates well through sound baffles.

Carpentry anyone?

Smile
"With ordinary talent and extraordinary perseverance, all things are attainable." - Thomas Foxwell Buxton

Cool
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#13
(03-02-2013, 01:29 AM)PaulaO2 Wrote: Did you try the pillows on any other mask setting? As in telling the machine it was a nasal mask instead?

I wonder how screwy the data is when the mask is wrong?

I find high pitched noises to be very annoying so I'm guessing I would wake up if my Autoset starting honking. But I will ask my partner if I've been sleeping through it.

Hi PaulaO2,

When the mask setting is wrong it would mess with the calculation of unintentional leak. Not sure if it would slightly affect other calculations.

I think the noise sometimes has something to do with the RPM (speed) the blower is rotating. Maybe the blower is out of balance at certain speeds, resulting in vibration noise. A little higher or lower speed could be making the out-of-balance get worse or go away completely.

A forum member mentioned (maybe it was a couple months ago) his experience that the slight whistle only occurred part way into his Ramp time. When machine was at low RPM or high RPM his machine was very quiet. Maybe this is why sometimes helps to turn off EPR, because turning off EPR could be preventing the machine from changing speed and getting into a noisy RPM range.
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.
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#14
I have noticed that if Im get my mask JUST RIGHT the whistle is less. But I go to sleep and don't care
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#15
(03-01-2013, 08:30 PM)GrantAZ Wrote: I am having some problems with my use of a ResMed S9 CPAP(auto) and I wanted to ask for solutions/advice.

My Respironics REMstar Auto M series motor finally went out on me. I went to my local DME and asked for a recommendation for the best CPAP(auto) out there. They said unequivocally that it was the ResMed S9. I took their advice and I ended up buying 2 units for cash since I didn’t have insurance that would cover it. Almost a thousand dollars apiece. And I bought 2 Swift FX nasal pillows as well so I would have 2 setups to use.

Now the reason I bought 2 units was so that I could have one at home and one at the new girlfriend’s house and didn’t want to be lugging one CPAP back and forth all week and not knowing which house I would end up at for the night. Our houses are about 40 minutes apart.

So I have been dating the girlfriend for about 3 months, it has been going phenomenally well, this is a person that I love and I don’t take that lightly, but I have been a little wary about introducing the CPAP into the equation since it is a little awkward and embarrassing but we talked about it and I finally brought the CPAP over to her house. I set it up and we get into bed and I turn it on and she says “what’s that whistle noise?” (Yes, this is the S9 unit that has the annoying whistle noise.) So I try to cover up the CPAP with a towel and lowered it to floor level to attempt to make it quieter. We eventually go to sleep but a couple of times during the night she tells me that the CPAP whistle noise is bothering her every time I exhale.

The next night at her house I start trying to analyze where the whistle is coming from and try taking off the humidifier, moving the CPAP to different locations near the bed, placing various towels and pillows around the machine to muffle the sound and nothing works to make it quiet enough. We even put on a fan to bring some white noise in and that doesn’t mask it enough either. She tells me that she can’t sleep with the CPAP on and the previous night she wasn’t able to sleep as well because of the whistle noise. I end up going home that night since she can’t sleep with the CPAP on and I can’t sleep without using it. Not a happy camper.

So I start looking for solutions because this is affecting my relationship in a big way. I contact my DME where I bought the 2 units and set up an appointment to talk to the manager. I tell her my problem with the noise issue and she says that I would have to take that up with ResMed and there is nothing they can do about it. I only have 6 hours on the one machine but they say that it is considered “used” now and I can’t return it. They said “that is the law” and they can’t be returned if used. Their only option was for me to return the machines for 50% of what I just bought them for since they were used. I argued with them for a good 20 minutes but that is all that they would offer.

So I am looking for advice on what I should do at this point. I am getting really frustrated with this. Here are my options as I see it:

1) Contact ResMed and look to get refunded for the 2 ResMed S9 machines that I can’t use if I want to sleep in the same room as my girlfriend. I don’t know how this process would work or what my chances are of getting my money back for what I consider 2 defective machines that have noise levels WAY over what I consider acceptable. The S9 has a whine on inhale and a whistle on exhale. Completely unacceptable! My girlfriend says it sounds like a cat in heat. My Respironics REMstar Auto M series was significantly quieter.

2) Return both machines at a loss of about a thousand dollars and buy another machine that is supposedly quieter from the same DME who didn’t stand by me.

3) Build some kind of noise deflecting box to use for both my house and my girlfriend's house so that it would be quiet enough to use the S9’s. I don’t know if this would even work.

4) Try to talk my girlfriend into using ear plugs so that she can sleep and we can be in the same room. I hate to do this because I don’t want to affect her sleep in a negative fashion and I don’t want her to not hear her alarm in the morning or feel cutoff from what’s happening around her. I have tried earplugs in the past and they bug me too much to use. Because of the noise level on this machine I have just been using 2 t-shirts to cover each ear.


Does anyone have any advice to help my relationship and make this situation better? I need a solution pronto.

Grant



You said that you have two. Both of them make noise or just one if so why just don't bring the one that quieter to your girl friend's house.

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#16
Just adding a "me too" to the thread... I get a whistling on exhale as well (brand new machine).
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#17
(03-02-2013, 10:26 AM)Sleepster Wrote:
(03-02-2013, 01:29 AM)PaulaO2 Wrote: Did you try the pillows on any other mask setting? As in telling the machine it was a nasal mask instead?

I wonder how screwy the data is when the mask is wrong?

I doubt it makes any difference. All it does is change the pressure by a small amount, probably just a fraction of a centimeter.

I agree with Sleepster that it will not change the accuracy of the reported pressure.

But it could significantly affect the accuracy of the reported unintentional Leak, and possibly other reported calculations.

Take care,
--- Vaughn
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.
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#18
(03-05-2013, 10:24 AM)cincysinner Wrote: Just adding a "me too" to the thread... I get a whistling on exhale as well (brand new machine).
This is more common problem as originally thought, maybe 1 in 10 machines affected.
If more people complain loud and more often, ResMed might recall affected machines for replacement

You can take the machine back and have ResMed change the motor or even a refund
More likely the problem will be fixed with the S10

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#19
For some of us, we got our machines through back doors or online. I got my Escape via Medicaid/Medicare but bought my Autoset myself. I can take the Escape to the local DME where I got it but what can I do about the Autoset?

The Escape whistled a lot but the Autoset has not.

Zonk, where's the info on how to read the serial number to determine date of make? Didn't we once find that?
PaulaO2
Apnea Board Moderator
www.ApneaBoard.com


Breathe deeply and count to zen.

INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.




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#20
(03-07-2013, 08:54 PM)PaulaO2 Wrote: For some of us, we got our machines through back doors or online. I got my Escape via Medicaid/Medicare but bought my Autoset myself. I can take the Escape to the local DME where I got it but what can I do about the Autoset?

Can't you do the same thing? Send it back to the online DME.
Sleepster
Apnea Board Moderator
www.ApneaBoard.com


INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
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