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28Troubleshooting
There is excessive leak. Adjust position of mask and
headgear.
Caps may be missing from ports
on mask. Replace them.
Air tubing not connected
properly. Connect firmly at both
ends.
Air tubing kinked or punctured.
Straighten or replace.
S8 Elite II unit does
not stop when you
remove your mask.
SmartStart/Stop is disabled. Enable SmartStart/Stop.
SmartStart is enabled
but the flow
generator does not
stop automatically
when you remove
your mask.
Incompatible humidifier or mask
system being used.
Use only equipment as
recommended and supplied by
ResMed.
Display error
message:
Check tube!!
Key if done
The air tubing is loose or
blocked.
Check that the air tubing is
connected securely to your
mask and the air outlet on the
front of the S8 Elite II.
When you have checked the air
tubing, press the Start/Stop key
to restart the device.
If this does not clear the
message, disconnect the power
cord and then reconnect it to
restart the device.
Display error
message:
SYSTEM ERR nnnn
Call service!
Component failure. Record error number and
contact your ResMed service
centre.
Problem Possible Cause Solution