Search found 4 matches

by leinerd
Mon Aug 28, 2023 4:14 pm
Forum: CPAP and Sleep Apnea Message Board
Topic: HDM Z1 Have a fault 33 code. Anyone know how to fix it?
Replies: 63
Views: 92092

Re: HDM Z1 Have a fault 33 code. Anyone know how to fix it?

Davidrb11 wrote:
Mon Aug 28, 2023 3:06 pm
I changed the internal battery, as suggested here, that did the trick
Interesting! Wonder why that worked for you but not me. Do you have a Z1 Auto?
by leinerd
Tue Aug 15, 2023 2:32 pm
Forum: CPAP and Sleep Apnea Message Board
Topic: HDM Z1 Have a fault 33 code. Anyone know how to fix it?
Replies: 63
Views: 92092

Re: HDM Z1 Have a fault 33 code. Anyone know how to fix it?

Figuring I had nothing to lose, I decided to try flashing the firmware with the Z1 (not Auto) version. The firmware worked but, as expected, turned the unit into a Z1. Unfortunately, it made no difference with the Fault 33 issue. Not that it matters, but I was unable to flash it back to the Z1 Auto ...
by leinerd
Tue Aug 15, 2023 9:04 am
Forum: CPAP and Sleep Apnea Message Board
Topic: HDM Z1 Have a fault 33 code. Anyone know how to fix it?
Replies: 63
Views: 92092

Re: HDM Z1 Have a fault 33 code. Anyone know how to fix it?

Alright, I have to back up and report failure on the original Fault 33 issue. Up until now, I had been running the device without headgear attached. I thought this was sufficient to test because I also thought that the clock battery was the issue. The device throws a Fault 33 with head gear attache...
by leinerd
Wed Aug 09, 2023 2:56 pm
Forum: CPAP and Sleep Apnea Message Board
Topic: HDM Z1 Have a fault 33 code. Anyone know how to fix it?
Replies: 63
Views: 92092

Re: HDM Z1 Have a fault 33 code. Anyone know how to fix it?

Folks, I have a Z1 from 2016 and a Z1 auto from 2018. Both units failed due to the FAULT 33 error about a year apart. In both cases, the distributor told me I’d have to pay the repair costs since they were out of warranty. I went ahead and sent them to the distributor who in turn sent them to BREAS...