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Humidifier not working?
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rhomanji Offline

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Posts: 2
Joined: Jan 2016

Machine: AirSense10
Mask Type: Full face mask
Mask Make & Model: unsure
Humidifier: unsure
CPAP Pressure: unsure
CPAP Software: Other Software

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Sex: Female
Location:

Post: #1
Humidifier not working?
I'm waking up with dry mouth & sometimes bloody nose the past few days.

I've turned up the humidifier (was on autoset) and it is now far past where previously all water would have been used up & I'd be rained out. However, barely any water is getting used. What is going on? Any ideas? I've been using it for 6 months and never had any issues like this before.

TIA!
01-07-2016 12:03 PM
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justMongo Offline

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Posts: 3,857
Joined: Sep 2013

Machine: ResMed VPAP Auto (S9)
Mask Type: Full face mask
Mask Make & Model: ResMed Mirage Quattro
Humidifier: ResMed H5i
CPAP Pressure: 18 IPAPmax - 11 EPAPmin, PS=5
CPAP Software: Other Software

Other Comments: μολὼν λαβέ

Sex: Male
Location: Калифорния

Post: #2
RE: Humidifier not working?
Keep in mind that the amount of water used depends upon room temperature and the relative humidity of the room air.

With that in mind, it is possible that the unit is defective. Did you obtain it from a local dispenser of Durable Medical Equipment?
The unit should be under warranty; and, if defective, they should replace it.

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(This post was last modified: 01-07-2016 12:31 PM by justMongo.)
01-07-2016 12:30 PM
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Possum Offline

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Posts: 254
Joined: Oct 2015

Machine: Resmed Airsense Autoset A10
Mask Type: Nasal pillows
Mask Make & Model: Airfit P10
Humidifier: (included in CPAP model)
CPAP Pressure: 8-12
CPAP Software: ResScan SleepyHead

Other Comments: Innovo CMS-50F+ pulse oximeter

Sex: Male
Location: San Diego, California, USA

Post: #3
RE: Humidifier not working?
As far as I know, the humidifier in this unit is extremely simple - it literally heats up the water via the metal heating element, which increases the vapor pressure of the water, and the water vapor is swept into the flowing stream of air. Thus, it seems the only thing that could go wrong would be failure of the heating element. That said, when you turn off the machine in the morning, immediately check if there is residual heat in the metal heating elements in the machine itself and on the bottom of the chamber. It should not be hot enough to burn you, but be careful anyway. If it is cool to the touch or just barely warm, then there is something wrong with it.
01-07-2016 01:09 PM
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PaytonA Offline
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Posts: 3,019
Joined: Dec 2013

Machine: ResMed S9 VPAP Auto
Mask Type: Full face mask
Mask Make & Model: Resmed Mirage Quattro
Humidifier: H5i(distilled-top up)
CPAP Pressure: VAuto MinE14.0 MaxI 20.6 PS4.0
CPAP Software: ResScan SleepyHead

Other Comments:

Sex: Male
Location: Orange County,California

Post: #4
RE: Humidifier not working?
Possum and rhomanji,

You need to go the other way around. It can easily be that no humidification is needed in the morning so the heater might be cold even though it is working fine.

After the machine has been off for at least an hour or two. Turn on the humidifier pre-heat option and let it run for 5-10 minutes. Shut down. Remove tank and carefully feel the plate. Should feel warm to hot.

Best Regards,

PaytonA
(This post was last modified: 01-07-2016 02:36 PM by PaytonA.)
01-07-2016 02:36 PM
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Possum Offline

Advisory Members

Posts: 254
Joined: Oct 2015

Machine: Resmed Airsense Autoset A10
Mask Type: Nasal pillows
Mask Make & Model: Airfit P10
Humidifier: (included in CPAP model)
CPAP Pressure: 8-12
CPAP Software: ResScan SleepyHead

Other Comments: Innovo CMS-50F+ pulse oximeter

Sex: Male
Location: San Diego, California, USA

Post: #5
RE: Humidifier not working?
(01-07-2016 02:36 PM)PaytonA Wrote:  Possum and rhomanji,

You need to go the other way around. It can easily be that no humidification is needed in the morning so the heater might be cold even though it is working fine.

After the machine has been off for at least an hour or two. Turn on the humidifier pre-heat option and let it run for 5-10 minutes. Shut down. Remove tank and carefully feel the plate. Should feel warm to hot.

Best Regards,

PaytonA

Every morning when I wake up and immediately dump the residual water, the plate is still hot, which is why I recommended that; however, I suppose you're right that may not always be the case, thus checking after a warm-up would be the better option.
01-07-2016 02:43 PM
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trish6hundred Offline

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Posts: 6,453
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: #6
RE: Humidifier not working?
Hi rhomanji,
WELCOME! to the forum.!
Much success to you with your CPAP therapy.

trish6hundred
01-07-2016 07:16 PM
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rhomanji Offline

New Members

Posts: 2
Joined: Jan 2016

Machine: AirSense10
Mask Type: Full face mask
Mask Make & Model: unsure
Humidifier: unsure
CPAP Pressure: unsure
CPAP Software: Other Software

Other Comments:

Sex: Female
Location:

Post: #7
RE: Humidifier not working?
Thank you for your suggestions. I did get it from a local distributor after going though all of the hospital overnights and insurance and blah blah blah.

I filled up the room humidifier to see if that would help after the suggestion about relative humidity, power cycled by unplugging from the back, and dumped my water & cleaned and put in all fresh. Working better the past couple nights, but I still feel like I need more. I had it back on auto again, not wanting to get rained out if that all worked, so I may just try setting a number tonight instead of auto.

How does the heat in the tube effect the humidify? If I turn the heat up/down will it help with my morning dry mouth issues? qould messing with the temp in the tube be necessary to fix this issue as well?
01-09-2016 09:41 AM
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Sleeprider Online
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Advisory Members

Posts: 3,400
Joined: Dec 2014

Machine: Resmed Aircurve 10 Vauto
Mask Type: Nasal pillows
Mask Make & Model: Resmed Airfit P10
Humidifier: Resmed Climateline
CPAP Pressure: Auto Bilevel 18/9, PS 3
CPAP Software: ResScan SleepyHead EncoreBasic

Other Comments:

Sex: Male
Location: Where they make Respironics

Post: #8
RE: Humidifier not working?
The tube temperature just prevents condensation between the humidifier and mask. The more humidity you run, the higher the tube temperature needs to be. Think about it. Water condenses as it cools or contacts a cooler surface. The more moisture the air is holding, the higher the "dew point".

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01-09-2016 10:16 AM
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piratefilmco Offline

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Posts: 3
Joined: Jan 2016

Machine: HDM Z1 CPAP
Mask Type: Nasal mask
Mask Make & Model: Mirage FX Wide
Humidifier: Honeywell Cold Air Humidifier
CPAP Pressure: 12.5
CPAP Software: Other Software

Other Comments:

Sex: Male
Location:

Post: #9
RE: Humidifier not working?
(01-07-2016 01:09 PM)Possum Wrote:  As far as I know, the humidifier in this unit is extremely simple - it literally heats up the water via the metal heating element, which increases the vapor pressure of the water, and the water vapor is swept into the flowing stream of air. Thus, it seems the only thing that could go wrong would be failure of the heating element. That said, when you turn off the machine in the morning, immediately check if there is residual heat in the metal heating elements in the machine itself and on the bottom of the chamber. It should not be hot enough to burn you, but be careful anyway. If it is cool to the touch or just barely warm, then there is something wrong with it.

I had an HC150 from a previous machine that held up well and works great but the one on my Respironics M series died and was not covered by warranty, the light worked as though it was on but the heating plate was not hot to the touch. Careful if you test that theory. The replacement for my machine humidifier was as much as a new machine so I go one and just use my old HC150, but I have found that a Honeywell whole room COLD air humidifier works 100% better. I still get the dry mouth but my sinuses are doing much better. I found with the heated air my sinuses swelled and it was harder to breath out.
01-09-2016 01:08 PM
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