My husband has a Respironics Dreamstation and it started giving us a "check power" error. He then took it to Kaiser to have them check it and even though they did not have this machine in particular, they had an adapter they used to check it. Voila! It worked! Got it home and it didn't. Ordered a new cord from Amazon and again, it worked! Once. Then again started giving us the same "check power" error.
Why would it work and then not? I realize this is difficult to determine without seeing it yourself but what would make it go back and forth as to whether or not it's going to work?
Check Power Supply
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Re: Check Power Supply
Welcome to the forum.
When you ordered from Amazon exactly which power cord did you get?
Just the power cord that goes from the brick to the wall outlet or did you also get a new power brick?
If you got a new brick...and it worked once and now doesn't....I would look closely at the connection at the machine. It may be loose or have a bent pin so that the connection isn't solid.
When you ordered from Amazon exactly which power cord did you get?
Just the power cord that goes from the brick to the wall outlet or did you also get a new power brick?
If you got a new brick...and it worked once and now doesn't....I would look closely at the connection at the machine. It may be loose or have a bent pin so that the connection isn't solid.
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Re: Check Power Supply
I'm glad to be here as there are so many questions we still have from time to time. 
We bought the entire power supply from Amazon; brick and cords going from both ends. However, we bought this one because we first got the "check power" message with his machine with the original cord. His machine is three years old. Do they usually last longer than that or is it just time??
We bought the entire power supply from Amazon; brick and cords going from both ends. However, we bought this one because we first got the "check power" message with his machine with the original cord. His machine is three years old. Do they usually last longer than that or is it just time??
Re: Check Power Supply
Are you asking about the machine or the power supply?
Any of these electronics can fail at any time. We have machines up and die after a month and we have machines lasting 10 years or more.
It's a crap shoot at best.
Bad connections happen fairly frequently though and seems like just the tiniest bit of looseness can cause a problem.
I haven't ever seen a DreamStation machine so I don't know what it might have at the machine where the cord gets plugged in but my ResMed machine has a tiny little pin that if it gets bent ever so slightly it won't power up. Also it seems like that the connection will sometimes work loose and then it won't power up and I have to shove it back in a little snugger.
Someone with electrical smarts could maybe check it further but I don't have those skills at all.
There is some sort of diagnostic test that can be run on the DreamStation but if it won't power up at all then of course can't do the diagnostic check.
It is of course out of warranty (warranty is 2 years)....there are places that can repair them.
Acbio.com is one
https://acbio.com/
You might give them a call and explain the situation and see if they have any ideas. I have used them myself...very nice people.
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Re: Check Power Supply
Hey Y'all,
I am grateful for this post, I am necro-posting because I think it may help others. I do have a dreamstation and was stuck at "Check Power" after a storm. The cpap also fell off the table as a coincidence, but I thought the power outage had a higher probability of being the problem like the circuit board or the brick got fried.
1. I inspected the circuit board. I had no idea what I was looking for other than obvious burn looking stuff - maybe it was dumb but I had nothing to lose at the same time. It looked fine. Full Disclosure: I know nothing about circuit boards or electrical stuff.
2. I inspected the dc jack/input (I don't know what it is called) that you plug the power into. It looked rusty and there was some stuff looking like copper rust(greenish looking stuff). I used q-tips and rubbing alcohol to clean things up. To get into the circle part I used a scissors and used the trimmed down the q-tip middle part/stem deal til it would fit and again used rubbing alcohol. This process took a lot of patience.
3.
WARNING: Unplug the ac/dc converter prior to doing step.
WARNING: Check the inside of the circular part that plugs into the cpap machine. It should have a pin sticking up in the middle, this is REQUIRED and cannot be broken off/gone or it will give the "Check Power" error.
The above middle pin in the plug had been broken off causing the issue for me but I didn't even notice it was gone(if it isn't there, it is basically impossible to know it was supposed to be there. I did check that there wasn't any debris and the condition inside the circular part before ramming alcohol q-tips in there to clean it. So I cleaned the dc jack as it had rust on the inside and the outside.
4. Plugged things in with everything apart to see what the display was - still "Check Power". So I literally started looking in my junk drawer for a brick with similar specs and dc circular plugs. I found an old dell ac/dc adapter so I plugged it in, it was underpowered but I wanted to just see maybe it would detect it as "low voltage" I think it said it would say in the manual. No go - it was still "Check Power", so that is something to note - underpowered power supplies will give the same error which could be misleading.
5. Compared the brick's plugs that went into the dc jack and the jack itself had a hole in the middle. So the lightbulb(as dim as it is) went off and I think I figured out the issue. In 3's warning, it mentions when cleaning make sure you don't mess with that center pin - that was what was missing from what I was assuming an ok ac/dc cpap brick.
6. So here is where I say just by another exact replacement brick if you can and if you don't have patience or an old dell brick you don't care about. The center pin will be there in the new brick hopefully and problem solved.
(Optional - Below items down, but is an immediate fix if you have the extra computer brick with a dc plug and center pin that you don't care about)
7. Cut the circular plug off the dell brick after the bump thing(think it is a capacitor?). You don't want that, you just want the plug. Dell's wires are horrendous to splice. They are three concentric circles of very small gauge thread wires(again I am sure there is a name for them, I am not an electrical guy). Using an exacto knife and patience separate the three groups of wires. I always twist the wire threads so they are like one big gauge wire. The dell brick can be disposed of accordingly, it probably has some stuff in it that shouldn't be just tossed in the garbage.
8. Cut the circular plug off the cpap brick(the plug part is worthless without the center pin at this point). Use the exacto knife to strip the three wires, these are normal wires. If you are fancy you can use wire strippers on these. For me, an exacto knife is more of a universal tool and prefer it actually than having all sorts of specialized tools unless you do this sort of a thing for a living, I digress.
9. The obvious matching wires are the center dell(smallest wire grouping that was double sleeved in plastic) and the smallest in the cpap brick wire you can see it by just eyeballing the three wire diameters. I just twisted them together and electric tapped them, but there are twist connectors or straight cramp connectors or even soldering if you want. For me the outermost wire part from the dell plug mapped to the black cpap wire sleeve wire and the white to the remaining middle dell wire threads grouping. Again connect however you want, some are better long and short term than others. I did the quick twist by fingers so they stayed together after twisting(intertwined) then individually wrapped them with electric tape and then wrapped the set of three connections to make them hopefully last long term, we'll see.
I hope the info above saves others some time and going through nights without a cpap. I get a kick out of seeing others' "hacks". Ideally you just get another brick, but if you have an extra dell brick you don't care about, I can confirm the optional part/"hack" at the bottom did resolve the "Check Power" issue.
I hope this post finds it's readers' well Take good self care!
I am grateful for this post, I am necro-posting because I think it may help others. I do have a dreamstation and was stuck at "Check Power" after a storm. The cpap also fell off the table as a coincidence, but I thought the power outage had a higher probability of being the problem like the circuit board or the brick got fried.
1. I inspected the circuit board. I had no idea what I was looking for other than obvious burn looking stuff - maybe it was dumb but I had nothing to lose at the same time. It looked fine. Full Disclosure: I know nothing about circuit boards or electrical stuff.
2. I inspected the dc jack/input (I don't know what it is called) that you plug the power into. It looked rusty and there was some stuff looking like copper rust(greenish looking stuff). I used q-tips and rubbing alcohol to clean things up. To get into the circle part I used a scissors and used the trimmed down the q-tip middle part/stem deal til it would fit and again used rubbing alcohol. This process took a lot of patience.
3.
WARNING: Unplug the ac/dc converter prior to doing step.
WARNING: Check the inside of the circular part that plugs into the cpap machine. It should have a pin sticking up in the middle, this is REQUIRED and cannot be broken off/gone or it will give the "Check Power" error.
The above middle pin in the plug had been broken off causing the issue for me but I didn't even notice it was gone(if it isn't there, it is basically impossible to know it was supposed to be there. I did check that there wasn't any debris and the condition inside the circular part before ramming alcohol q-tips in there to clean it. So I cleaned the dc jack as it had rust on the inside and the outside.
4. Plugged things in with everything apart to see what the display was - still "Check Power". So I literally started looking in my junk drawer for a brick with similar specs and dc circular plugs. I found an old dell ac/dc adapter so I plugged it in, it was underpowered but I wanted to just see maybe it would detect it as "low voltage" I think it said it would say in the manual. No go - it was still "Check Power", so that is something to note - underpowered power supplies will give the same error which could be misleading.
5. Compared the brick's plugs that went into the dc jack and the jack itself had a hole in the middle. So the lightbulb(as dim as it is) went off and I think I figured out the issue. In 3's warning, it mentions when cleaning make sure you don't mess with that center pin - that was what was missing from what I was assuming an ok ac/dc cpap brick.
6. So here is where I say just by another exact replacement brick if you can and if you don't have patience or an old dell brick you don't care about. The center pin will be there in the new brick hopefully and problem solved.
(Optional - Below items down, but is an immediate fix if you have the extra computer brick with a dc plug and center pin that you don't care about)
7. Cut the circular plug off the dell brick after the bump thing(think it is a capacitor?). You don't want that, you just want the plug. Dell's wires are horrendous to splice. They are three concentric circles of very small gauge thread wires(again I am sure there is a name for them, I am not an electrical guy). Using an exacto knife and patience separate the three groups of wires. I always twist the wire threads so they are like one big gauge wire. The dell brick can be disposed of accordingly, it probably has some stuff in it that shouldn't be just tossed in the garbage.
8. Cut the circular plug off the cpap brick(the plug part is worthless without the center pin at this point). Use the exacto knife to strip the three wires, these are normal wires. If you are fancy you can use wire strippers on these. For me, an exacto knife is more of a universal tool and prefer it actually than having all sorts of specialized tools unless you do this sort of a thing for a living, I digress.
9. The obvious matching wires are the center dell(smallest wire grouping that was double sleeved in plastic) and the smallest in the cpap brick wire you can see it by just eyeballing the three wire diameters. I just twisted them together and electric tapped them, but there are twist connectors or straight cramp connectors or even soldering if you want. For me the outermost wire part from the dell plug mapped to the black cpap wire sleeve wire and the white to the remaining middle dell wire threads grouping. Again connect however you want, some are better long and short term than others. I did the quick twist by fingers so they stayed together after twisting(intertwined) then individually wrapped them with electric tape and then wrapped the set of three connections to make them hopefully last long term, we'll see.
I hope the info above saves others some time and going through nights without a cpap. I get a kick out of seeing others' "hacks". Ideally you just get another brick, but if you have an extra dell brick you don't care about, I can confirm the optional part/"hack" at the bottom did resolve the "Check Power" issue.
I hope this post finds it's readers' well
Take good self care!
Re: Check Power Supply
"necro-posting" i LOVE IT!! will try to remember to incorporate that into my lexicon.
i'll leave it to others to comment on your content as i ain't smart enuff to do so.
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