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Problem/possible cause Solution
A non-ResMed power supply unit is
connected to the device.
Remove the power supply unit and replace with a ResMed
power supply unit.
The power supply unit is being covered
by bedding.
Make sure that the power supply unit is free from bedding,
clothes or other objects that could cover it.
Displays error message: Tube blocked, please check your tube
Air tubing is blocked.
Check your air tubing and remove any blockages.
Disconnect the power cord and then reconnect it to restart
the device.
The following message is displayed on the LCD after you try to update settings or copy data
to the SD card: Card error, please remove SD card and contact service provider
SD card is not inserted correctly. Ensure that the SD card is inserted correctly.
You may have removed the SD card
before settings were copied to the S9
device.
Reinsert the SD card and wait for the Home screen or the
"Settings updated successfully, press any key" message
to appear on the LCD.
Note: This message only appears once. If you re-insert the
SD card after you have updated your settings, the message
will not be re-displayed.
The following message is NOT displayed on the LCD after you try to update the settings using
the SD card: Settings updated successfully, press any key
The settings were not updated. Contact your clinician/service provider immediately.
Water splashing on your face from the H5i
The water tub is overfilled. Check that the water level is below the maximum water
level mark.
Condensation is forming in the air tube
and mask.
Turn the H5i or relative humidity setting down via the
menu.
Leaking water tub
The water tub may be damaged or
cracked.
Contact your service provider for a replacement.
The cleanable water tub is not
assembled correctly.
Check for damage and reassemble the cleanable water tub
correctly.
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