
3
Problem/Possible Cause Solution
SmartStart/Stop is enabled but the CPAP device does not stop automatically when you remove your mask
Incompatible mask system being used. Only use equipment recommended by ResMed.
The patient is using a nasal pillows mask with a
set pressure less than 7 cm H2O.
Disable SmartStart/Stop.
Pressure rises inappropriately
Talking, coughing or breathing in an unusual
manner.
Avoid talking with a nasal mask on, and breathe as normally as possible.
Mask cushion is buzzing against the skin. Adjust the headgear.
Displays error message: Heated tube fault, replace tube
Device has been left in a hot environment. Allow to cool before re-use. Disconnect the power cord and then
reconnect it to restart the device.
There is a fault in your ClimateLine air tubing. Discontinue using your ClimateLine air tubing and contact your clinician/
service provider. Use Standard or SlimLine tubing in the interim.
Displays error message: Humidifier fault, replace humidifier
Device has been left in a hot environment. Allow to cool before re-use. Disconnect the power cord and then
reconnect it to restart the device.
There is a fault in your H5i heated humidifier. Discontinue using your H5i and contact your clinician/service provider.
Displays error message: High temperature fault, refer to user manual
Device has been left in a hot environment. Allow to cool before re-use. Disconnect the power cord and then
reconnect it to restart the device.
The device or air inlet is being covered by
bedding.
Make sure that the device is free from bedding, clothes or other objects
that could cover the device or block the air inlet. Disconnect the power
cord and then reconnect it to restart the device.
Air filter is blocked. Replace your air filter. Disconnect the power cord and then reconnect it to
restart the device.
Air tubing is blocked. Check your air tubing and remove any blockages. Disconnect the power
cord and then reconnect it to restart the device.
Humidifier setting is too high, resulting in
accumulation of water in the air tubing.
Turn the humidifier setting down and empty the water from the air tubing.
Displays error message: Check ResMed Power Supply Unit and fully insert the connector
The DC plug is partially inserted into the back of
the device or inserted too slowly.
Fully insert the DC plug.
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.
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