ResMed 338425/1 Manuel D’Utilisation

27

Troubleshooting

If there is a problem, try the following suggestions. If the problem cannot be 
solved, contact your equipment supplier or ResMed. Do not attempt to open the 
device.

Problem

Possible Cause

Solution

Power not connected.

Ensure the appropriate power 
cord is connected to your 
S8 Elite II and the power switch 
(if available) is on.

Ramp time is in use.

Wait for air pressure to build up 
or change ramp time.

Air filter is dirty.

Replace air filter.

Air tubing is kinked or 
punctured.

Straighten or replace tubing.

Air tubing not connected 
properly.

Check air tubing.

Mask and headgear not 
positioned correctly.

Adjust position of mask and 
headgear.

Cap(s) missing from access 
port(s) on mask.

Replace cap(s).

Pressure required for treatment 
may have changed.

See your clinician to adjust the 
pressure.

Power cord not connected 
properly.

Connect power cord firmly at 
both ends.

Power outlet may be faulty.

Try another power outlet.

SmartStart not on.

Enable SmartStart.

Leak Alert has been enabled; 
SmartStart has automatically 
been disabled.

Disable Leak Alert to enable 
SmartStart.

Use of a Mirage or Ultra Mirage 
Full Face Mask.

SmartStart does not work with a 
full face mask as the anti-
asphyxia valve will not allow 
sufficiently high pressure on 
exhalation. 

Breath is not deep enough to 
trigger SmartStart.

Take a deep breath in and out 
through the mask.