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27Troubleshooting
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
No display. Power not connected. Ensure the appropriate power
cord is connected to your
S8 Elite II and the power switch
(if available) is on.
Insufficient air
delivered from
S8 Elite II.
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.
S8 Elite II does not
start when you
breathe into the
mask.
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.