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Message
Battery operation
No battery
Battery almost empty
Device temperature
Device temperature
Device temperature
critical
Device malfunction
EN
Troubleshooting
126
Alarm
low priority
medium priority
A further
10 minutes
operation is
possible, high
priority
Unit too cold
↓
high priority
↑
low priority
high priority
high priority
Cause
External power supply
too weak or has failed
No battery inserted
Battery defective
Low battery
Unit's internal
temperature < -20°C
Unit switches off after
10 minutes if it is not
warmed up to above
-20°C within this time
Unit's internal
temperature > 65°C
Unit temperature >
+75°C
Unit switches off after
10 minutes, or if its
internal temperature
rises above 82°C
Internal fault
Rectification
No unit fault; message appears,
e.g., on removing unit from wall
mounting or portable system or if
a power failure occurs during
operation via the power supply
unit (alarm stops automatically
after 10 seconds).
Insert battery in unit.
Replace battery.
Use replacement battery.
Move unit to a warmer
environment.
Move unit to a cooler
environment. If necessary, switch
unit off to accelerate cooling.
Move unit to a cooler
environment. If necessary, switch
unit off to accelerate cooling.
1. Switch the device off (section
"5.13 Ending ventilation").
2. Switch the device back on
again (section "5.2 Switching
the unit on/Self-test").
3. Select "Last patient" and
continue ventilation (section
"5.2 Switching the unit on/
Self-test").
4. If the fault persists, have the
device repaired.
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