25
Error
Insufficient flow
Excessive noise
Internal error or
device does not
work
Dry and / or irritated
upper and / or lower
airways
Redness or
inflammation in the
contact area of the
nasal cannula
Root cause analysis
• Air inlet filter or outlet port blocked.
• Respiratory tube leaking or damaged.
• Water chamber not installed or
damaged.
• Respiratory tube connection
defective.
• Tube used not compatible.
• Incorrect installation.
• Tubes not or incorrectly connected.
• Nasal cannula or respiratory tube
leaking.
• The motor of the high-flow device
has failed or there is another internal
technical problem.
• Inflammation
• Dry air
• Headband too tight.
• The nasal cannula model is not
suitable for the patient.
• The patient is allergic to the material
of the nasal cannula model.
Troubleshooting
• Replace the air inlet filter,
clear the outlet opening from
the blockage.
• Replace the nasal cannula or
the respiratory tube.
• Wear the nasal cannula ac-
cording to the manufacturer's
instructions.
• Check that the connection is
correct and reliable.
• Only use devices recom-
mended and provided by
Löwenstein Medical.
• Contact Löwenstein Medical.
• Check that the hoses are
properly connected
• Check whether the respiratory
tube is leaking.
• Check that the connection
between the water chamber
and the high-flow device is
working correctly.
• Contact Löwenstein Medical.
• Check that the connection
between the high-flow device
and the power supply is
correct.
• Contact Löwenstein Medical.
• If necessary, adjust the tem-
perature setting to your needs
or consult a physician.
• Check the water level in the
water chamber.
• Loosen the headband.
• Consult a physician if
necessary.
Troubleshooting