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Troubleshooting
Troubleshooting
Alarm messages in the alarm display field are displayed in
hierarchical order.
If, for example, two faults are detected at the same time,
the more critical of the two is displayed.
Message
Air supply down
Air supply down
Air supply pressure high
Air supply pressure high
Airway pressure high
Airway pressure low
Apnoea
Apnoea ventilation
ASB > 1.5 s
ASB > 4 s
128
Cause
!!! Air supply pressure too low.
!
Air supply pressure too low.
Air supply pressure not required when
FiO
= 100 Vol.%.
2
!!
Air supply pressure too high.
!
Air supply pressure too high.
Air supply is not needed for
FiO
= 100 Vol.%.
2
!!! The upper alarm limit for the airway
pressure has been exceeded. The
patient is "fighting" the ventilator, cough.
Ventilation hose buckled.
!!! Leaking cuff.
Leak or disconnection.
!!! Patient's spontaneous breathing has
stopped.
Stenosis
Flow sensor not calibrated or faulty.
!!
Due to detected apnoea, the system
has switched over automatically to
mandatory ventilation.
!
Only appears in paediatric mode.
The ASB cycle has been switched off
3 times due to time limitation.
!!! Only appears in adult mode.
The ASB cycle has been switched off
3 times due to time limitation.
The priority for alarm messages is marked by exclamation
marks:
Warning = Message with top priority
Caution = Message with medium priority
Advisory = Message with low priority
In the table below, the messages are listed in alpha-
betical order.
The table should help you identify the cause of any alarm,
and to ensure rapid remedy of the problem.
Remedy
Make sure pressure is greater than 3 bar.
Make sure pressure is greater than 3 bar.
Ensure pressure is less than 6 bar.
Ensure pressure is less than 6 bar.
Check patient condition,
Check ventilation pattern,
Correct alarm limit if necessary.
Check hose system and tube.
Inflate cuff and perform leak test.
Check hose system for tight connections.
Check that the expiration valve is
properly engaged.
Apply controlled ventilation.
Check condition of patient. Check tube.
Calibrate flow sensor. Replace if
necessary.
Check ventilation procedure. Return to
the original ventilation procedure with
»Alarm Reset«.
Check condition of patient. Check tube.
Test ventilation system for leaks.
Test ventilation system for leaks.
!!!
!!
!
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