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Treatment Will Not Start Check the display for a fault condition. Refer
to the Fault Codes table in “Fault Conditions”.
Contact the Human Design Medical Service
Center at 1-855-436-8729 [1-855-HDMUSA9]
Insufficient Air Flow Delivered from Z1 Air filter is dirty or clogged. Replace air filter.
Air intake is blocked. Clear blockage.
CPAP Tube is not connected properly. Check
CPAP Tube, Tube Adapter and connections to
your Z1 and your mask.
Ramp Mode is in use. Wait for air pressure to
reach prescribed treatment pressure or stop
treatment and adjust ramp time.
CPAP Tube is blocked, pinched or punctured.
Unblock CPAP Tube. Check the CPAP Tube for
punctures. Replace a damaged CPAP Tube
immediately.
Mask and/or headgear are not positioned
correctly and mask is leaking. Adjust position of
the mask and headgear until leak ceases.
Incorrect CPAP Tube selected. Do not use tubing
which was not recommended by your clinician.
Check the display for a fault condition. Refer to
fault codes in “Fault Conditions”.
Pressure Rises Inappropriately Talking, coughing or breathing in an unusual
manner. For example, avoid talking with a nasal
mask on and breathe as normally as possible.
There may be an air leak caused by improperly
connected tubing. Check for leaks.
Follow mask manufacturer’s instructions.
Mask Cushion is Vibrating Against the Skin Stop treatment. Remove and reposition the
and an Air Leak is Occurring mask and, if necessary, adjust the headgear.
Resume treatment.
Follow mask manufacturer’s instructions.
Z1 Has Been Left in a Hot Environment Allow Z1 to cool before use. Disconnect the
power cord and then reconnect it to restart the
Z1.
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