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Problem/Possible cause
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 message:
Device has been left in a hot
environment.
Air filter is blocked.
Air tubing is blocked.
Humidity level setting is too
high, resulting in accumulation
of water in the air tubing.
Displays message:
The DC plug is partially inserted
into the back of the device or
inserted too slowly.
A non-ResMed power supply
unit is connected to the device.
The power supply unit is being
covered by bedding.
The following message is displayed on the LCD after you try to update settings or copy data to
Card error, please remove SD card and contact service provider
the SD card:
SD card is not inserted correctly. Ensure that the SD card is inserted correctly.
4
Solution
Avoid talking with a nasal mask on, and breathe as normally as
possible.
Adjust the headgear.
Adjust headgear or re-fit cushion.
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. 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 humidity level setting down and empty the water from
the air tubing.
Check ResMed 30/90W Power Supply Unit and fully insert the connector
Fully insert the DC plug.
Remove the power supply unit and replace with a ResMed power
supply unit.
Make sure that the power supply unit is free from bedding, clothes
or other objects that could cover it.
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