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- Mon Aug 28, 2023 3:06 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: 95451
Re: HDM Z1 Have a fault 33 code. Anyone know how to fix it?
I changed the internal battery, as suggested here, that did the trick