Air surging in tubing during Dreamstation 2 therapy

General Discussion on any topic relating to CPAP and/or Sleep Apnea.
APALLAS
Posts: 1
Joined: Sun Jan 26, 2025 1:11 pm

Air surging in tubing during Dreamstation 2 therapy

Post by APALLAS » Sun Jan 26, 2025 1:27 pm

Apologies if this is addressed elsewhere ... I have a (replacement) Dreamstation 2 with an HT15 heated hose and a Quattro FX FF mask. I accidentally overfilled the humidifier reservoir, which caused the machine to turn off. I separated the humidifier, drained it, and drained the water that had infiltrated the device, letting it dry for a day. (Fortunately I have a back-up machine). Now, when I start the machine with hose and mask attached, there is strong surge of air on both my inhale and my exhale. I couldn't possibly sleep with this surging, and am wondering if anyone else has encountered this, and what I might do to address it. Thanks!

_________________
Machine: DreamStation 2 Auto CPAP Advanced with Humidifier
Mask: Quattro™ FX Full Face CPAP Mask with Headgear
Humidifier: DreamStation Heated Humidifier
Additional Comments: HT15 heated tubing

User avatar
ChicagoGranny
Posts: 14987
Joined: Sun Jan 29, 2012 1:43 pm
Location: USA

Re: Air surging in tubing during Dreamstation 2 therapy

Post by ChicagoGranny » Mon Jan 27, 2025 1:10 pm

It's not clear to me what you mean by "surge".

In any case, have you checked all the machine settings, including exhalation relief, to see if they are the same as before the water incident?

As you know, water can really screw up electronics.
APALLAS wrote:
Sun Jan 26, 2025 1:27 pm
Apologies if this is addressed elsewhere
Doesn't matter. Members answer the same questions hundreds of times. :D
"It's not the number of breaths we take, it's the number of moments that take our breath away."

Cuando cuentes cuentos, cuenta cuántas cuentos cuentas.

Grumpy48
Posts: 401
Joined: Tue May 12, 2020 7:57 am

Re: Air surging in tubing during Dreamstation 2 therapy

Post by Grumpy48 » Mon Jan 27, 2025 4:09 pm

If you simply let it set for the day dry out, it's possible there still may be some moisture within the unit that is present. I'm guessing there is some kind of air pressure/flow sensor somewhere in the air path in the machine that got wet and doesn't respond properly to your breathing. As long as the machine seems to run OK with just the hose connected (no mask), empty the water tub, turn off the humidifier, and just let it run for several hours and maybe with some luck dry room air flowing through it may dry the internals sufficiently so it returns to functioning normally. Having the water tub and hose connected while doing this will muffle the noise versus running the machine without the water tub in place. Hopefully this helps.

_________________
Machine: DreamStation 2 Auto CPAP Advanced with Humidifier
Mask: Fisher & Paykel Vitera Full Face Mask with Headgear (S, M, or L Cushion)
Additional Comments: Resmed AirSense 10 Auto with Humidifier