Machine not working-?? How to check??

I bought a craigslist Resmed Airsense10 Auto, zero hours. I've used it the last 2 nights, and my gut tells me something isn't right with it. For 2 1/2 yrs, my AHI is almost always 1 or 2. When I used the new machine, it shot up to 6 and 7. There was even one session that was AHI 75!! I woke up feeling like I did pre treatment.
I triple checked all the settings, they are correct. Now, what to do with this machine? Where can I send it to have it checked out? I looked to buy a manometer (?) but it was $75. Obviously, something is wrong with it.
Is there a legit Resmed repair place I can ship it off to? I'm in St Louis if there is a local place.
Thanks.

Cardsfan wrote:I bought a craigslist Resmed Airsense10 Auto, zero hours. I've used it the last 2 nights, and my gut tells me something isn't right with it. For 2 1/2 yrs, my AHI is almost always 1 or 2. When I used the new machine, it shot up to 6 and 7. There was even one session that was AHI 75!! I woke up feeling like I did pre treatment.
I triple checked all the settings, they are correct. Now, what to do with this machine? Where can I send it to have it checked out? I looked to buy a manometer (?) but it was $75. Obviously, something is wrong with it.
Is there a legit Resmed repair place I can ship it off to? I'm in St Louis if there is a local place.
Thanks.

Very easy to check if the machine is providing the desired pressure.
Detach the mask from the hose. Shape the hose so that it forms a "U" (hose runs from machine towards the ground and back up). Pour water into the hose so that you have a column of water ~20 cm measured from the lowest point. Make note of the water level and then turn on the machine. If the pressure is 4cm-water, then the water will lower by 2cm on one side of the "U" and raise by 2cm on the other (total water height change is 4cm).
See this for a description https://en.wikipedia.org/wiki/Pressure_measurement

TedVPAP wrote:Pour water into the hose so that you have a column of water ~20 cm measured from the lowest point. Make note of the water level and then turn on the machine.

You want to check that the pressure you operate at are correct and that sounds a bit messy to me.

Cardsfan wrote:I looked to buy a manometer (?) but it was $75. Obviously, something is wrong with it.

How much would it cost to have it checked by someone else?
I say spend the money on a manometer esp if it is less than having it checked somewhere else. This way you can also check your other cpap and have it for future use.

Here is a highly recommend place and is also a forum member, ACBIO.com, they also have a place in Missouri.

TedVPAP's solution is accurate, and FREE.
Do that first.
If it needs repair, check with acbio.com.

chunkyfrog wrote:TedVPAP's solution is accurate, and FREE.
Do that first.
If it needs repair, check with acbio com.

That really is not as easy as it sounds. Give it a try then get back to us.

Thanks everybody. I'm going to contact ABICO. see what they say.
Even if I do the pressure check myself, no matter what it says, my GUT is telling me something is wrong with it. I woke up at 4am with a headache, pounding heart, having to rush to the bathroom and the AHI was abnormally high. I switched machines, went back to sleep for 4 hrs and with my old machine my AHI was 0.4.
That happened 2 nights in a row trying out this new machine.
Thank goodness my first machine I was treated with functioned properly. Could you imagine if you are newly diagnosed and get a malfunctioning machine. What a mess that would be.

Many DMEs will check it free...It take about 30 seconds.....Find one and ask.

Maybe the person or place you bought it from has a way to check it. Won't hurt to ask.

Cardsfan wrote: I looked to buy a manometer (?) but it was $75.

You're looking at the wrong ones, mine came off ebay, and was less than 30$.

You can also make one with some water and clear tubing... or just stick the end of your hose into a pitcher and see how far down you get before bubbles come out.

Cardsfan wrote: Obviously, something is wrong with it.

maybe, what's the *data* say?