70
Troubleshooting
Problem
Possible cause
Remedy
Cold nose
Room temperature too low
Increase the room tempera-
ture, run the tube under the
blanket
Running nose, urge to
sneeze
Reaction to the air
fl
ow
Increase the air humidity in
the room or set the humidi-
fi
er to a higher level
Common cold
Consult a physician
Reddening of the skin in the
area of the mask; swelling
of the skin
Wrong mask size
Inform the attending physi-
cian
Head gear too tight
Head straps loosened
Allergic reaction
Inform the attending physi-
cian
Air sensed to be too warm
Filter dirty
Exchange
fi
lter
Air inlet obstructed
Check the device for proper
setup
Radiator in the vicinity of
the device
Increase the distance
between device and radia-
tor
No air
fl
ow
Device defective
Notify the service
Water in the measuring tube Remove the water