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[Equipment] Phillips Respironics 450p and 550p
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eehutch Offline

New Members

Posts: 1
Joined: Feb 2016

Machine: Phillips Respironics 550
Mask Type: Nasal mask
Mask Make & Model: unknown
Humidifier: Remstar System One
CPAP Pressure: 11
CPAP Software: Not using software

Other Comments:

Sex: Male
Location: SF Bay Area

Post: #1
Phillips Respironics 450p and 550p
Have had 2 of these, the 450 failed then dropped the 550 and it failed a few days later too. So I am into 2 weeks without a CPAP and I am really sleeping poorly. So I am a technical guy, and I start thinking I can swap parts etc and get a good unit and start taking them apart. Put one back together and zippo, no soap.

Then I start wondering about the power supply. Son of a gun, I plug in the car battery setup I have for our cabin in the mountains, and all of a sudden, I have 2 functional CPAP machines, I am in the money!!! Sleep tonight.

Must have carried over the power supply to the second unit and ...

So, I always thought the power supply was hokey, some dam thing that they had to buy a medical device grade thats not as good as a usual laptop item that will last forever.

So, all I have to do is find the other supply or make a new one. By the way, its a 12 volt input to a standard barrel connector. Easy...

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02-08-2016 09:06 PM
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trish6hundred Online

Advisory Members

Posts: 6,449
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: #2
RE: Phillips Respironics 450p and 550p
Hi eehutch,
WELCOME! to the forum.!
It’s good to hear that you got both of your machines working.
Much success to you as you continue your CPAP therapy, sleep well.

trish6hundred
02-08-2016 10:26 PM
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Sleeprider Online
Wiki Editor
Advisory Members

Posts: 3,363
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: #3
RE: Phillips Respironics 450p and 550p
Philips Respironics power supplies for the System One machines are all interchangeable 12-volt 5 amp supplies. They are really inexpensive, and you can find them through the online DME suppliers, or for that matter a standard 5-amp power supply from Batteries+ or similar electronic vendors. Respironics Power Supply AC Adapter 12V 5.0A

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02-09-2016 12:27 PM
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