Problem / possible cause | Solution |
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|
There is a large impedance (eg, antibacterial filter) in the air circuit.
Perform the Learn Circuit function.
The device does not stop when you remove your mask
SmartStart/Stop is disabled. | Consult your clinician. |
Use of a full face mask or tracheostomy | SmartStart is disabled if Full face mask or |
tube. | Trach is selected as interface. |
|
|
Incompatible accessories (eg, humidifier | Use only equipment as recommended |
or mask system) with high resistance | and supplied by ResMed. |
being used. |
|
|
|
High Leak Alarm or Low Min Vent alarms | Consult your clinician. |
are set to ON. |
|
|
|
“Confirm Stop” is enabled. | Consult your clinician. |
High Leak Alarm is enabled, but alarm does not activate when the mask is removed during treatment
Incompatible air delivery system being | Use only equipment as recommended |
used. | and supplied by ResMed. |
|
|
Pressure settings are too low for the air | Perform the Learn Circuit function to |
delivery components being used. | adjust the therapy pressure according to |
| your air tubing system. |
|
|
Learn Circuit failed |
|
•The circuit configuration is inappropriate as the impedance detected is too high.
•Too many components have been included or the impedance of accessories in use is above ResMed’s recommendation, eg, type of filter, external humidifier, air tubing.
Review the components included in the circuit configuration and adjust as appropriate, then rerun Learn Circuit (see “Setup menu” on page 16).
The delivered airflow is not humid/heated although the H4i humidifier is in use
The humidifier is not properly attached. | Correctly attach the humidifier. |
The humidifier does not heat. | The device is currently powered by |
| battery use or not connected to the |
| mains. |
The humidifier does not work.
Return the device and the humidifier for servicing.
The water chamber is empty. | Fill the water chamber of the humidifier. |
USB stick is not readable or writeable | |
|
|
The USB stick contains unreadable data, | Consult your clinician. |
does not have enough space available, is |
|
not compatible with the device. |
|
|
|
USB stick is defective. | Replace the USB stick after consulting |
| your clinician. |
FiO2 sensor calibration failure
FiO2 sensor is not attached properly.
For the correct attachment of the FiO2 sensor, see “Using the FiO2 monitoring sensor” on page 8.
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