ResMed Lumis Series User Manual page 16

Problem/possible cause
I am getting a dry or blocked nose
Humidity level may be set too low.
I am getting droplets of water on my nose, in the mask and air tubing
Humidity level may be set too high.
My mouth is very dry and uncomfortable
Air may be escaping through your mouth.
Air pressure in my mask seems too high (it feels like I am getting too much air)
Ramp may be turned off.
Air pressure in my mask seems too low (it feels like I am not getting enough air)
Ramp may be in progress
Ramp Down may be in progress
Non-vented mask is used.
Mask vents might be blocked.
Expiratory pressure (EPAP) may be set too low.
My screen is black
Backlight on the screen may have turned off. It turns off
automatically after a short period of time.
Power may not be connected.
I have stopped therapy, but the device is still blowing air
Device is cooling down.
My humidifier is leaking
Humidifier may not be assembled correctly.
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Solution
Adjust the Humidity Level.
If you have ClimateLineAir heated air tubing, see the
ClimateLineAir user guide.
Adjust the Humidity Level.
If you have ClimateLineAir heated air tubing, see the
ClimateLineAir user guide.
Increase the Humidity Level.
You may need a chin strap to keep your mouth closed or a
full face mask.
Use the Ramp Time option.
Wait for air pressure to build up or turn Ramp Time off.
Press Start/Stop to stop therapy then press Start/Stop to
restart and continue therapy.
Only use a vented mask.
Check if you have sufficient venting. Unblock mask vents if
necessary.
Talk to your care provider about your settings.
Press Home or the dial to turn it back on.
Connect the power supply and make sure the plug is fully
inserted.
Note: the retention clip should be in the open position when
inserting the plug. For instructions refer to the Setup section.
Device blows a small amount of air in order to avoid
condensation in the air tubing. It will stop automatically after
20 minutes.
Check for damage and reassemble the humidifier correctly.