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[Equipment] Sudden Unusual Machine Noise
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[Equipment] Sudden Unusual Machine Noise
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BradHolt
Posts: 2 Threads: 1 Joined: Jun 2025
Machine: ResMed AirCurve11 VAUTO S ASV
06-30-2025, 01:09 PM
Sudden Unusual Machine Noise
My ResMed AirCurve11 ASV has suddenly started emitting a high-pitched whining noise that varies with the pressure. Has anyone else with a similar machine experienced this? If so, what was the resolution to the problem?
Crimson Nape
Wiki Editor 
Posts: 16,068 Threads: 215 Joined: Oct 2014
Machine: AirCurve 10 Vauto
06-30-2025, 01:30 PM
RE: Sudden Unusual Machine Noise
Hi BradHolt! -
 First, check that your humidifier is fully seated. After that, check your hose for any pinholes. I've had my hoses fatigue where the hose connector mates with the hose. Good luck! - Red
Crimson Nape
Apnea Board Moderator Project Manager for OSCAR - Open Source CPAP Analysis Reporter www.ApneaBoard.com ___________________________________ Useful Links -or- When All Else Fails: The Guide to Understanding OSCAR OSCAR Chart Organization Attaching Images and Files on Apnea Board Apnea Helpful Tips 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.
BradHolt
Posts: 2 Threads: 1 Joined: Jun 2025
Machine: ResMed AirCurve11 VAUTO S ASV
06-30-2025, 04:51 PM
(This post was last modified: 06-30-2025, 04:52 PM by BradHolt. Edited 1 time in total.)
RE: Sudden Unusual Machine Noise
Thanks, Red. I tried your suggestions and there was no change. I also tried running the machine without the humidifier and without the hose connected. The machine, of course, only runs for a second or two before shutting down without those two devices connected, but during that time the whining noise was still present. It seems as though the noise is coming from either the motor or the air pump.
jdougc
Posts: 1,254 Threads: 7 Joined: Sep 2024
Machine: ResMed AirCurve 10
06-30-2025, 04:53 PM
RE: Sudden Unusual Machine Noise
Change the filter and try a much lower pressure as a test.
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[Equipment] Sudden Unusual Machine Noise
