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having trouble with resmed S9 power supply and SD card
#1
Hi, I am new to this sight. First and foremost I want to thank everyone who helps in advance,

I have a resmed S9 Vpap.  When I plug it in, message says cannot detect SD card, even though it is in machine, then right after message says to check the 90w power supply. But I have checked the power brick and cords, nothing wrong. 
Any suggestions or has anyone else have this problem?
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#2
Hi jimcip, - Welcome

Have you tried using a different SD card?
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#3
No, not yet, I need to get another one. 
Thanks for the input Thanks
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#4
Yup...the little cards ResMed sends with the S9s are not great. Mine went after about 2 years, but I put a decent Sandisk unit in there and it's been fine since.

About the power block, check the output info on the block itself and make sure it is supposed to put out 90W. If it says it is and you keep getting that message, it might be on its way out or there is a loos connection somewhere.
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