Chris Rose, Manufacturers Rep, from Philips Respironics, talks about the 450P REMstar Pro Series CPAP as well as the Easy Life ...
How To Change The Pressure of a Respironics M Series APAP CPAP Machine.
Respironics Remstar Plus M-Series - Model 1038863 W ACCESSORIES AND BAG.
... . The system has detected a large leak in the circuit or you have taken the mask off without turning the airflow off. Check the circuit connections for leaks.
The "Attention" symbol ... changed to include unusual or harsh sounds during operation.
REMstar Plus with C-Flex User Manual
The REMstar Plus with C-Flex will not turn on ... device's serial number ready when you call.
22 REMstar Plus with C-Flex User Manual