Troubleshooting
72
General troubleshooting
Issue Action
Condensation forming in circuit Condensation may form due to high humidity settings and low ambient temperatures.
Adjust humidifier settings in accordance with manufacturer's instructions.
Touch screen damaged or
non-responsive
If you are unable to power off the Astral device normally, use the following forced
shutdown procedure:
1. Disconnect any external power source (eg, AC mains or external battery).
2. Press and hold the green on/off button and the alarm mute/reset button for at least
10 seconds. After 10 seconds the alarm bar will flash yellow.
3. Release both buttons. Astral will then power off.
4. The Astral device can be powered back on by pressing the on/off button and used as
intended.
Unable to save data from Astral to
USB or USB is not detected by
device.
1. Remove and reinsert the USB stick.
2. Use a new USB stick.
3. Remove the AC or external DC power supply, the restart the Astral by switching it off
then on.
4. Reformat your USB stick. Note that any data currently saved on the USB will be lost.
Learn Circuit failed If the Learn Circuit fails and a warning message appears on the top of the Learn Circuit
results page, try the following:
1. Check the circuit for Leak.
2. Check the module, the blue membrane and sensor are pressed all the way in and sit
flush with the enclosure.
3. Hold the circuit straight to reduce resistance.
Note: It is acceptable to use a circuit that gives a caution message as the Astral device
will compensate for circuit resistance and compliance.
Flow Sensor failed
(Astral 150 only)
If the Flow Sensor fails and a message appears on the bottom of the Learn Circuit results
page, try the following:
1. Check the circuit for Leak.
2. Check the expiratory valve, the blue membrane and sensor are pressed all the way in
and sit flush with the enclosure.
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