Noob here...REMstar pro c-flex question

[green wings]

Amazing! That's really terrific.
*makes note of Gazpacho's name for future CPAP repair questions*

Well, I found out what the problem was.

I took apart the unit and noticed that the red wire in the harness that goes to the heater was burnt.

I unplugged it and saw that the contact was totally oxidized.

Cleaned it with sandpaper put it back together and it works like new!