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Troubleshooting
67
Problem
Possible cause
Remedy
Reddening of the skin
in the mask area, skin
swelling
Incorrect mask size
Inform your physician
Headgear too tight
Loosen the headgear
Allergic reaction
Inform your physician
Feeling that the air is
too hot
Filter dirty
Change the
fi
lter
cassette
Air inlet blocked
Change the position of
the device. Keep the air
inlet clear
Heater close to the
device
Move the device and
the heater further apart
No air
fl
ow
Device is defective
Inform customer
services
Water in the measuring
tube
Remove the water
Very little air
fl
ow
Soft start function has
been selected
Reduce soft start time
Air channels are blocked Check air inlet
Blower is running con-
stantly at maximum
speed
Measuring tube not
connected or clogged
Check the measuring
tube
Leak in the device
Have the device
checked by customer
services
Water in the measuring
tube
Remove the water
Therapy pressure not
steady
Water in the measuring
tube
Remove the water
Device defective
Notify the service
Measuring tube bent
Check for bends