ResMed S9 Series Information Manual page 4

Problem/possible cause
Mask cushion is buzzing against the
skin.
Cushion seated incorrectly causing
excessive leak.
Displays error message:
Device has been left in a hot
environment.
There is a fault in your ClimateLine air
tubing.
Displays error message:
Device has been left in a hot
environment.
There is a fault in your H5i heated
humidifier.
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.
Displays error message:
The DC plug is partially inserted into
the back of the device or inserted too
slowly.
4
Solution
Adjust the headgear.
Adjust headgear or re-fit cushion.
Heated tube fault, replace tube
Allow to cool before re-use. Disconnect the power cord
and then reconnect it to restart the device.
Discontinue using your ClimateLine air tubing and contact
your clinician/service provider. Use SlimLine, Standard or
3m air tubing in the interim.
Humidifier fault, replace humidifier
Allow to cool before re-use. Disconnect the power cord
and then reconnect it to restart the device.
Discontinue using your H5i and contact your
clinician/service provider.
High temperature fault, refer to user manual
Allow to cool before re-use. Disconnect the power cord
and then reconnect it to restart the device.
Replace your air filter. Discconect 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.
Check ResMed Power Supply Unit and fully insert the connector
Fully insert the DC plug.