Eventually, the blower stays on and it runs through my sleep cycle like nothing ever happened. This normal state might be reached after 20 restarts. Also, after some random restart count it will stay off, requiring a replug power-up to begin the restart cycle anew, up to three replugs and about 20min being a worst case. Best case it fires up after about 10 restarts. I just realized I've never checked the display before a replug so I'll do that tonight. I checked, it goes blank when it's all beeped out.

All functions, settings, and input buttons work as expected after running, including the humidifier. No leaks or bad gaskets, blower spins freely. About to replace PCA button battery but the old one had good voltage. Contact cleaner used when resetting every jack. Power supply good. Filters clean. I'll be rechecking all of these things one more time plus a picky board inspection, but I don't expect to find a problem at component level.

I can't imagine what kind of consistent, repeatable error could exist with no fault found. It behaves as if some sensor feedback is telling the algorithm that it can't run or start. Considering getting a serial adapter module and downloading the tech software but I have never seen an error code on the display.

Subjectively, 3 things I find interesting are:

1) the restart blower puff seems to gain volume and power up to the running state; if it dwindles or remains lame it's likely restart attempts will stop until a replug

2) dial digit 4 is slightly dim, but lights as expected

3) I checked the button battery voltage in situ, and it crept upwards. I've never seen this before but some reading tells me their may be an intentional capacitor storage, maybe to kick start the blower or something.

I could talk about this all night, given that a new machine will run me $1400CDN.

⟐ Commented February 22, 2026 at 23:03 MST

⟐ Commented January 17, 2026 at 23:36 MST

After replacing the motor on s9 machine?

⟐ Answered December 28, 2025 at 2:26 MST

⟐ Answered November 02, 2025 at 20:37 MST

⟐ Commented September 21, 2025 at 15:53 MST

⟐ Answered September 17, 2025 at 5:26 MST

when I turned my CPAP on all it does is read code 006 and it doesn’t work

⟐ Edited by author May 18, 2025 at 12:58 MST

⟐ Answered April 12, 2025 at 10:36 MST

I unplugged it and now it won’t work

⟐ Answered March 14, 2025 at 5:40 MST

Problem: I can't find anywhere what voltages are applied to the Black, Yellow, and Orange wires. Does anyone know?

⟐ Answer edited February 27, 2025 at 3:23 MST

⟐ Answered January 29, 2025 at 12:14 MST