ResMed Astral Series Clinical Manual page 165

Troubleshooting
Alarm message
Low Pulse Rate
Low Resp Rate
Low SpO
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Low Vte
Low Vti
No FiO monitoring
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No SpO monitoring
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NV Mask/Rebreathing
Obstruction
PEEP blower failure
Power fault / no charging
Pressure Line disconnected
Safety reset complete
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Action
1. Check the patient's status.
2. Verify that therapy and alarm settings are appropriate.
1. Check the patient's status.
2. Inspect the circuit and the proximal lines for leak.
3. Check and adjust settings.
4. Verify that therapy and alarm settings are appropriate.
5. Perform a Learn Circuit.
1. Check the patient's status.
2. Verify that therapy and alarm settings are appropriate.
1. Check the patient's status and airway.
2. Inspect the circuit and the circuit adapter for obstruction or leaks or water.
3. Verify that therapy and alarm settings are appropriate.
4. Perform a Learn Circuit.
1. Check the patient's status and airway.
2. Inspect the circuit for obstruction.
3. Verify that therapy and alarm settings are appropriate.
4. Perform a Learn Circuit.
Perform a Learn Circuit to calibrate the oxygen sensor.
1. Check the SpO connection to patient's finger and the Astral.
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2. If the alarm persists, use another SpO
For vented circuit:
1. Check that the mask vents are clear and unobstructed.
2. Check the mask type setting.
3. Perform a Learn Circuit.
For mouthpiece circuit:
Check that the interface is a mouthpiece and that the patient is not continuously exhaling
into the circuit.
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 all connections between the ventilator 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.
1. Check the connection of the proximal sense line.
2. Check the circuit for water.
3. Perform a Learn Circuit.
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.
oximeter or finger sensor.
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