Page 22
3001002 Rev. P
Section 12 Alarms
Alarm Table
Alarm icon
Audio Signal
Indicates
Cause
Action
General fault
(flashing)
Medium
Priority
Cannot be
muted
Malfunction of
sensor or con-
trol system
Internal compo-
nent failure
Cannot be corrected
by user: disconnect
patient. Shut off unit,
send for service.
General fault
(flashing)
% O2 displays
dashes (- -)
Medium
Priority
Cannot be
muted
O2 sensor
fault
Depleted or
defective O2
sensor
Reset by shutting
off unit. Replace O2
sensor. Restart unit
Blocked tube
(flashing)
Medium
Priority
Mutes only
during brief
reset period
High back
pressure
Obstructed or
kinked cannula/
delivery tube,
incorrect can-
nula for flow
rate, or DPC
improperly
seated
Clear obstruction,
check cannula type,
re-install DPC
Water out
(flashing)
Medium
Priority
No water in
disposable
water path.
Gas flow
continues
without heat-
ing or water
circulation.
Sterile water
empty, or
obstructed inlet
tube.
Disconnect patient.
Replace water bag
or straighten inlet
tube. Restart unit.
Disposable
water path
(flashing)
Medium
Priority
Disposable
water path
faulty or not
detected. Unit
will not run.
Dispos-
able water path
defective, not
properly seated
or not installed.
If disposable water
path is present,
remove and replace
to reset detector.
Battery
charging
(continuous)
None
The internal battery backup is not fully charged. The
unit would not run on battery for the full rated time in the
event of a power failure. No action is necessary.
Battery
(flashing)
Medium
Priority
The unit is
running in
BATTERY
mode. Gas
flow and
blending con-
tinue without
heat or water
circulation.
AC power is
disconnected
Reconnect AC
power.
