Does it look like any of these? 1.... https://www.cpap.com/productpage/respironics-remstar-pro-2-cpap-cflex.html 2.... https://www.cpap.com/productpage/Respironcs-M-Series-REMstar-Pro-C-Flex-CPAP.html 3.... https://www.cpap.com/productpage/respironics-pr-system-one-remstar-pro-cpap-cflex-plus.html ...

It is a Phillips Respironics, Remstar Pro C-Flex+ according to the paper work. It just beeps once but it does it every 60 minutes, 24/7.

My machine is about 6 or 7 years old. Recently it has started beeping once an hour. It does this 24/7, even when not in use. I got it when I was on my then employer's insurance. Since then I lost my job and began using VA insurance so I don't imagine they would service the machine. Any idea why it i...