Luna II QX CPAP / Luna II QX Auto CPAP User Manual V1.1
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22.2 Common Problems in the Device and Corresponding
Solutions
Problem
Possible Cause
Solution(s)
The device does not
work when it is
turned on
The Auto On / Off
feature is enabled
Take a few deep breaths with
the mask on, and the device
will start automatically
Power is not
connected properly
Ensure that the power cord,
power adapter, and the
device are connected
properly
There is no voltage
Check whether a power
outage occurs by turning on
a light or other means. If you
are sure the fuse in the device
is broken, contact your
equipment supplier for repair
Cannot find any
cause
Contact your equipment
supplier
The device is
working, but the
pressure inside the
mask differs from the
set treatment
pressure
The tube is not
connected properly
Reconnect the tube properly
There may be holes in
the mask or pressure
sensing tube
Contact your equipment
supplier
It is a faulty device
Contact your equipment
supplier
The
device
produces very low
pressures
The air inlet of the
device may be
blocked
Replace the air filter (see 16.6
Replacing the Air Filter), and
clean the air inlet. Make sure
the air inlet is unblocked
The treatment
pressure has been
changed
accidentally
Contact your physician
When the Ramp
feature is enabled, it
takes some time for
the initial pressure to
rise to the treatment
pressure. This is normal
If necessary, disable the
Ramp feature, or set the ramp
time shorter
After the device is
turned on, the
screen displays
intermittently, or
displays nothing at
all
The operating system
of the device needs
to be readjusted or
restarted
Unplug the power cord of the
device, and re-plug it 20
seconds later
The device is in
standby, and will not
start
The operating system
of the device needs
to be readjusted or
restarted
Unplug the power cord of the
device, and re-plug it 20
seconds later
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Luna II QX CPAP / Luna II QX Auto CPAP User Manual V1.1
