ResMed Astral Series User Manual page 73

Troubleshooting
Alarm message
Obstruction
PEEP blower failure
Pressure Line disconnected
Power fault / no charging
Safety reset complete
Safety system fault
System fault
Total power failure
Using internal battery
Ventilation stopped
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Action
1. Check the patient's status and airway.
2. Inspect the circuit and the expiratory valve for obstruction. When in use, check for
kinks in proximal lines.
3. Check the circuit for water.
4. Perform a Learn Circuit.
1. Check the patient's status.
2. Switch to a back-up ventilator and return the device for service.
1. Check the connection of the proximal sense line.
2. Check the circuit for water.
3. Perform a Learn Circuit.
1. Check all connections between the device and external battery.
2. Check connection to mains power (if present). This can be caused by the battery
temperature being out of range.
If problem persists, contact your ResMed Service Centre.
The device detected a fault and was reset.
1. Check the patient's status.
2. If the alarm persists, switch to a back-up ventilator and return the device for service.
1. Check the patient's status.
2. Transfer the patient to an alternate means of ventilation.
3. Return the device for servicing.
1. Check the patient's status.
2. Perform a Learn circuit.
3. If problem persists, or the device fails self-test, return the device for service.
1. Check the patient's status and airway.
2. Connect the device to AC mains.
3. Check the battery charge level of the internal and external (if applicable) battery.
The total power failure alarm can only be silenced by connecting the device to
AC mains power.
Confirm operation on internal battery is intended or restore external power.
If intending to use external power:
1. Check the power cable connection between the mains or battery, the power supply
pack and the device.
2. If using an external battery, check the external battery charge level and
replace/charge if empty.
3. If using mains AC, check the supply output.
4. If the problem continues, try an alternative external supply type (ie, Mains AC, Mains
DC or External Battery).
Confirm it is appropriate to stop ventilation.