ResMed Astral Series User Manual page 75

Troubleshooting
Error code
204
205
206
303
404, 405, 406
409
415
420
426
70
Action
Unable to learn the circuit.
1. Ensure that the circuit is not moved until completion of the test.
2. Check the circuit and attached accessories for blockages.
3. Ensure that there are no sharp bends or kinks in the circuit and the patient end is not
blocked.
4. If using humidification, ensure that the humidifier tub is not overfilled.
5. Follow the on-screen instructions carefully:
circuit should not be blocked during step 2
•
circuit should be completely blocked during step 3.
•
If the problem persists, contact your clinician or an authorised Service Centre.
The measured circuit resistance exceeds safe operating limits for this device.
1. Check the circuit and attached accessories for blockages.
2. Ensure that there are no sharp bends or kinks in the circuit and the patient end is not
blocked.
3. If using humidification, ensure that the humidifier tub is not overfilled.
4. Follow the on-screen instructions carefully:
circuit should not be blocked during step 2
•
circuit should be completely blocked during step 3.
•
If the problem persists, contact your clinician or an authorised Service Centre.
Hardware fault detected. Contact an authorised Service Centre.
Unable to calibrate oxygen sensor.
1. Check that supplemental oxygen is not added during the Learn Circuit.
2. Repeat Learn Circuit.
If the problem persists, contact an authorised Service Centre.
Hardware fault detected. Contact an authorised Service Centre.
Learn Circuit was unable to complete due to excessive leak from the circuit.
1. Check that the circuit is completely blocked during the third step of the Learn Circuit.
2. Check that the circuit is assembled correctly and there are no leaks in the circuit.
3. Check that the circuit adapter is firmly inserted.
4. This circuit may not be compatible with the Astral device. Try another circuit.
Repeat Learn Circuit. If the problem persists, contact an authorised Service Centre.
Hardware fault detected. Contact an authorised Service Centre.
The measured circuit compliance exceeds safe operating limits for this device.
Check that the circuit is assembled correctly and completely blocked during the third step
of the Learn Circuit.
If the problem persists, contact your clinician or an authorised Service Centre.
Hardware fault detected. Contact an authorised Service Centre.