Problem/Possible cause
Device does not stop when you remove your mask
SmartStart/Stop is disabled.
Note: SmartStart/Stop is not available if
Leak Alert is enabled.
SmartStart/Stop is enabled but the device does not stop automatically when you remove your
mask
Incompatible mask system being used.
The patient is using a nasal pillows
mask or pediatric mask with a set
pressure less than 7 cm H
Pressure rises inappropriately
Talking, coughing or breathing in an
unusual manner.
Mask cushion is buzzing against the
skin.
Cushion seated incorrectly causing
excessive leak.
Displays error message:
Device has been left in a hot
environment.
Air filter is blocked.
Air tubing is blocked.
Humidifier setting is too high, resulting
in accumulation of water in the air
tubing.
Solution
Enable SmartStart/Stop.
Only use equipment recommended by ResMed.
Disable SmartStart/Stop.
O.
2
Avoid talking with a nasal mask on, and breathe as normally
as possible.
Adjust the headgear.
Adjust headgear or re-fit cushion.
Allow to cool before re-use. Disconnect the power cord
and then reconnect it to restart the device.
Replace your air filter. Disconnect the power cord and then
reconnect it to restart the device.
Check your air tubing and remove any blockages.
Disconnect the power cord and then reconnect it to restart
the device.
Turn the humidifier setting down and empty the water from
the air tubing.
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