Thanks again for all responses. I called the machine supplier. They are sending someone over tomorrow to replace the Humidifier module at no cost. After reading everything above I guess I'm still not convinced it's the humidifier. I know that my Dad likes to keep his bedroom on the cool side. I'll h...

Paveta How old is the machine? It sounds as if the humidifier is not heating. Have you disconnected the humidifier and then reconnected it to make sure that the internal electrical connectors are hooking up properly? Do you have a local supplier who can check it? If the machine is less than two yea...

Hello, I'm helping my Dad maintain his treatment machine. It's a Phillips Respersonics REMstar Auto A-Flex System One with Humidifier. At this time he does not have the heated tube option. First question: Insurance compliance sent us an SD card for data transfer. They stated that after inserting the...