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Philips Respironics DreamStation check power
#11
RE: Philips Respironics DreamStation check power
I had a similar problem last week. After reading the posts here, I tried a bit of "see what happens" troubleshooting. First, I tried using the machine without the humidifier. Nope. After a few more of these trials, I pulled the modem (which hasn't worked in a long, long time) and the machine booted up properly. I'll see how it does over time now. 

From the number of issues with the DreamStation (this "power" issue, the recall, the breaking humidifier latch, and the frequently breaking air filter springs) it certainly looks like Respironics had some serious design quality issues. Have there been other problems with this model? Is it time to look at another manufacturer?
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#12
RE: Philips Respironics DreamStation check power
Have there been other problems with this model? "

Well, when you consider the toxic foam recall going on right now... yes.

Edit - oops, just noticed that you did mention recall in your post, sorry.
Good news is there may be a ton of Dreamstations on the used market at some point, from those who refuse to have Philips "repair" and just went out to buy a Resmed. Parts galore, just remove that foam.
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#13
RE: Philips Respironics DreamStation check power
My friend has a PR DreamStation and we got the same message on hers. After looking things over, I noticed the center pin on the connector from the power supply was mash to the side inside the barrel connector. That said, and what I have read here, leads me to believe that the barrel connector carries power to the machine and the center pin may carry the validation signal proving a genuine PR power supply is attached. I don't know this for certain, but it makes sense. So, if the center pin was stressed and snapped completely off, it would look like any other generic barrel connector and the assumption could be made that the connector was good, but that would not be the case.
RayBee

~ Self-Treatment - via ApneaBoard experts.
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#14
RE: Philips Respironics DreamStation check power
The center pin on a lot of laptop and similar power bricks has a resistor that identifies the power brick by its value.
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