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System One Heated Humidifier stopped preheating suddenly
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kfujioka Offline

Preferred Members

Posts: 63
Joined: Aug 2014

Machine: Bipap system one auto
Mask Type: Nasal mask
Mask Make & Model: Air fit P10 and The Hybrid
Humidifier: System One heated humidifier & heated tube
CPAP Pressure: 12/07 for bipap
CPAP Software: SleepyHead

Other Comments: New to sleep apnea however think I have had it for a year because started having symptoms a year ago

Sex: Female
Location: Oahu, Hawaii

Post: #1
System One Heated Humidifier stopped preheating suddenly
I have a system one heated humidifier and last night the preheating function suddenly stopped working. Does anyone here know what may have happened?
I have always used the preheating function before I go to sleep so the air is already warm when I put the mask on.

Any ideas?

Thank you
Kim

Kimberly from HonoluluSleep-well
10-07-2014 11:33 PM
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Ghost1958 Offline

Advisory Members

Posts: 957
Joined: Aug 2014

Machine: PRS1 Series Sixty Auto Aflex
Mask Type: Nasal mask
Mask Make & Model: F&P Eson
Humidifier: PRS1 with Heated Hose
CPAP Pressure: 10.5 min 16 max
CPAP Software: SleepyHead EncoreBasic

Other Comments: Moderate to Severe SA Obstructive. Rapid O2 desat off the machine.

Sex: Male
Location: KY

Post: #2
RE: System One Heated Humidifier stopped preheating suddenly
You can try unplugging the machine, separating the blower from humidifier and then reattaching them again in case a connection got loose between the two.

Does the humidifier heat and work other than the preheat function???
10-08-2014 02:33 AM
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APAAW Offline

Preferred Members

Posts: 54
Joined: Nov 2013

Machine: Respironics 660 BiPAP Series One
Mask Type: Full face mask
Mask Make & Model: ResMed Mirage Quattro
Humidifier: Respironics Series One
CPAP Pressure: 9.5 - 13.5 BiPAP
CPAP Software: SleepyHead

Other Comments: My second time on CPAP, finally successfully

Sex: Male
Location: Kansas USA

Post: #3
RE: System One Heated Humidifier stopped preheating suddenly
Like Ghost1958 says.

Let me ask if the following could also have happened to you: After filling the reservoir with distilled water out of the refrigerator and then immediately turning on the CPAP, the PRS1 acted as though it had NO humidifier. After the water warmed up a bit, the PRS1 and/or its humidifier went back to normal (which was a very big relief).

I assume there is a temperature sensor in the heating plate of the PRS1 to keep it from overheating when it has run out of water. My speculation is that the sensor (really the algorithm using it) doesn't like water just a couple of degrees above freezing in the reservoir, in order to avoid thermal shock.

Did you happen to have this experience? Has anyone else? Thanks!
(This post was last modified: 10-08-2014 10:24 PM by APAAW.)
10-08-2014 10:16 PM
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