ResMed Stellar Serie Guide De L'utilisateur page 31

Problem / possible cause
The self test of the device fails and
therapy cannot be started (system failure
21).
Component failure (system failure 8, 25).
LCD: Over Pressure!
The device generates a pressure that is
greater than 59 cm H
2
be stopped.
LCD: Blocked Tube!
Air path is blocked.
LCD: High Temperature [10, 11, 12, 23]!
The temperature inside the device is too
high. Treatment may lead to stop.
LCD: High Pressure!
Therapy pressure exceeds pre-set alarm
level.
LCD: Low Pressure!
The air tubing is not connected properly.
LCD: Circuit disconnected!
The air circuit is not connected properly.
LCD: Low Minute Ventilation!
Minute ventilation level has dropped
below the alarm setting level.
O. Treatment will
Action
1. Power-off the device.
2. Power-on the device again.
If the problem persists, return the device
for servicing.
1. Power-off the device.
2. Power-on the device again.
1. Power-off the device.
2. Check that the air tubing is connected
properly.
3. Power-on the device again.
4. Start Learn Circuit function.
Note:
If the alarm activates repeatedly
internal components may be defective.
Discontinue use and return the device for
servicing.
1. Check the air path for any blockages.
2. Remove the blockages.
3. If the alarm is not cleared, stop
treatment.
4. Re-start treatment.
Ensure the ambient temperature is within
the specified operating range. If the
problem persists within the specified
operating conditions please return the
device for servicing.
Contact your clinician.
1. Stop treatment.
2. Re-start treatment.
If the problem persists contact your
clinician.
1. Check the air circuit integrity and
reconnect.
2. If the alarm doesn't get cleared, stop
treatment.
3. Re-start treatment.
1. Check the air circuit integrity and
reconnect.
2. If the alarm is not cleared, stop
treatment.
3. Re-start treatment.
Contact your clinician.
Troubleshooting 25