ResMed Lumis Series User Manual page 18

Problem/possible cause
Mask may be fitted incorrectly.
Displays messsage: Tubing blocked, check your tubing
Air tubing may be blocked.
Displays message: Leak detected, check your system setup and all connections
Mask may be fitted incorrectly.
Displays message: Low MV detected
Minute ventilation level has dropped below the pre-set
alarm level.
Displays message: Apnoea detected
The device detects an apnoea that has exceeded the
pre-set alarm.
Displays message: Low Sp02 detected
SpO has dropped below the pre-set alarm level.
2
Displays message: No SpO2 data, check your oxi sensor attachment to module/finger
Oximeter sensor is not attached properly.
Oximeter sensor may be faulty.
Displays message: Non-vented mask detected, use vented mask or unblock your mask vents
Non-vented mask is used.
Mask vents might be blocked.
Expiratory pressure (EPAP) may be set too low.
Displays message: System fault, refer to user guide, Error 004
Device may have been left in a hot environment.
Air filter may be blocked.
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Solution
Make sure your mask is fitted correctly. See your mask user
guide for fitting instructions or use the Mask Fit function to
check your mask fit and seal.
Check the air tubing and remove any blockages. Press the
dial to clear the message and then press Start/Stop to
restart the device.
Make sure your mask is fitted correctly. See your mask user
guide for fitting instructions or use the Mask Fit function to
check your mask fit and seal.
Contact your care provider.
Breath normally to disable the alarm.
If the problem persists contact your care provider.
Check the attachment of the sensor.
If the problem persists contact your care provider.
Ensure that the oximeter sensor is attached properly to the
module and to your finger.
If the message appears repeatedly, the oximeter sensor
might be faulty. Replace the oximeter.
Only use a vented mask.
Check if you have sufficient venting. Unblock mask vents if
necessary.
Talk to your care provider about your settings.
Allow to cool before re-use. Disconnect the power supply
and then reconnect it to restart the device.
Check the air filter and replace it if there are any blockages.
Disconnect the power supply and then reconnect it to restart
the device.