Below are some Frequently Asked Questions (FAQs) and trouble shooting tips for the Z1 and Z2 CPAPs and Accessories.

If you do not find the answer to your question, you can email Customer Support at customerservice@smallCPAP.com or call us at 855-436-8729. Our Customer Support department is open Monday- Friday 8:00 am- 5:00 pm EST Monday-Friday.

How to program the comfort settings on the Z1 and Z2 CPAPs.

Fault/Reminder Codes

When the Z1 or Z2 is in standby mode, the screen reads 0.0 in the pressure area. If the screen is not displaying 0.0 when turning your machine on, would indicate that it needs to be returned for repair. Please contact your provider, and they will advise you on what steps to take.

If the display screen shows your pressure, and the fan has not started blowing air within thirty seconds, then the blower has failed and the machine should be replaced.  Please contact your provider and they will advise you on what steps to take.

The Fail 1 code means that you are hitting the power button while the motor is still running. It will happen when you hit the middle button repeatedly.

A Fault 22 means that there is an SD card stuck in the SD port of your Z1 machine and needs to be removed from the device. Do not attempt to remove the SD card yourself.

A Fault 33 is a defect in the unit and will need to be returned through the provider you purchased it from. Please contact your provider and they will advise you on what steps to take.

A Fault 66 indicates your machine will need to be returned through the provider you purchased it from. Please contact your provider and they will advise you on what steps to take.

An Error 18.8 indicates that there is a defect with the display panel, and will need to be returned through the provider you purchased your machine from.  Please contact your provider and they will advise you on what steps to take.

The word REMINDER indicates there is an excessive air leak somewhere. If it is happening while you have your mask on your face, please disconnect all parts to the Z1/Z2 including your mask and tubing (battery from the PowerShell, PowerShell from the machine, and unplug it from the wall). Reassemble the parts to the Z1/Z2.

REMINDER will only appear on the Z2 if you have turned off the Auto Start/Stop function. Otherwise the Z2 will stop when your mask is removed. If the REMINDER reappears, the device will need to be returned.  Please contact the provider you purchased your machine from to assist you.

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