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9. Troubleshooting
42
Problem Why it happened What to do
The device’s
display is erratic.
The device has
been dropped or
mishandled, or the
device is in an area
with several electronic
devices.
Unplug the device. Reapply power to
the device. If the problem continues,
relocate the device to an area away from
electronic equipment (such as cellular
phones, cordless phones, computers, TVs,
electronic games, hair dryers, etc.).
The Ramp feature
does not work
when you press the
Ramp button.
Your supplier did
not enable Ramp for
you, or your therapy
pressure is already
set to the minimum
setting.
• If ramp has not been enabled for
you, discuss this feature with your
supplier.
• If your supplier has enabled ramp,
but the feature still does not
work, check the current pressure
setting on the therapy screen. If
the therapy pressure is set to the
minimum setting (4.0 cm H
2
O), or
the ramp starting pressure is the
same as the therapy pressure, the
ramp feature will not work. Make
sure that the ramp time setting is
>0.
The airow is much
warmer than usual.
The air lters may be
dirty. The device may
be operating in direct
sunlight or near a
heater.
• Rinse or replace the air lter.
• The temperature of the air may
vary somewhat based on your
room temperature.
• Make sure that the device is
properly ventilated. Keep the
device away from bedding or
curtains that could block the ow
of air around the device.
• Make sure the device is away
from direct sunlight and heating
equipment.
The airow
pressure feels too
high or too low.
The tubing type
setting may be
incorrect.
Make sure the tubing type setting (12, 15
or 22) matches the tubing that you are
using (Philips Respironics 12, 15 or 22
tubing type).
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