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Pressure
measurement
hose
Medium priority
disconnected
(DMS))!
Medium priority
Unit failure!
Pressure
measurement hose
Excess pressure
blocked.
Medium priority
Disconnection!
Medium priority
36
Troubleshooting
The standard display appears again after
acknowledging the acoustic alarm. If the fault has not
been rectified, the status line continues to be displayed
and the yellow status display flashes (or is illuminated)
until the fault is cleared.
If the fault has not been rectified within 120 seconds
of acknowledgement, the acoustic alarm (buzzer)
sounds again.
Assistance with rectifying faults can be found in the
following tables.
Alarm
The pressure
measurement hose
was not correctly
fitted or was
forgotten during
fitting
Defective pressure
sensor
Water droplets in
the pressure
measurement hose
Hose system is not
correctly fitted to the
unit or not fitted at
all
The unit is being
operated with an
open mask (not
fitted).
Cause
Check that the hose is
present and has been
correctly fitted
Have the unit repaired
Dry the pressure
measurement hose as
described in 5.2
Check the hose connection
on the unit
Put the mask on, or turn the
unit off.
Rectification
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