Problem / possible cause | Solution |
Pressure required for treatment may | See your clinician to adjust the pressure. |
have changed. |
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There is a large impedance (eg, | Perfom the Learn circuit function. |
antibacterial filter) in the air circuit. |
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Humidifier control dial set too high, | Turn humidifier control down and empty |
resulting in accumulation of water in the | the water from the air tubing. |
air tubing. |
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Treatment pressure seems high |
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Pressure required for treatment may | Consult your clinician. |
have changed. |
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There is a change in the impedance in the | Perform the Learn Circuit function. |
circuit configurations. |
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The device does not start when you breathe into the mask | |
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SmartStart/Stop not on. | Consult your clinician. |
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Breath is not deep enough to trigger | Take a deep breath in and out through the |
SmartStart. | mask. |
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There is excessive leak. | Adjust position of mask and headgear. |
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Plug(s) missing from port(s) on mask. | Replace plug(s). |
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Air tubing is not connected properly. | Connect firmly at both ends. |
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Air tubing is kinked or punctured. | Straighten or replace tubing. |
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There is a large impedance (eg, | Perform the Learn circuit function. |
antibacterial filter) in the air circuit. |
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The device does not stop when you remove your mask | |
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SmartStart/Stop is disabled. | Consult your clinician. |
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Use of a full face mask or tracheostomy | SmartStart is disabled if Full face mask or |
tube. | Trach is selected as interface. |
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Incompatible accessories (eg, humidifier | Use only equipment as recommended |
or mask system) with high resistance | and supplied by ResMed. |
being used. |
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High Leak Alarm or Low Min Vent alarms | Consult your clinician. |
are set to ON. |
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“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. |
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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. |
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Learn Circuit failed |
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English |
•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).
Troubleshooting 25
