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Description Display Icons Condition/Action/Explanation
System COLD This may result from the concentrator being
stored in a cold environment (below 0ºC (32ºF)).
Move to a warmer environment to allow the
unit to warm up before starting it. If condition
persists, switch to a backup source of oxygen
and contact your equipment provider.
System Error Concentrator has stopped producing oxygen
and is shutting down. You should:
1. Switch to backup oxygen source
2. Contact your equipment provider
6. Troubleshooting
Problem Possible Cause Recommended Solution
Any problem accompanied
by information on
concentrator display,
indicator lights and/or
audible signals
Refer to Chapter 5 Refer to Chapter 5
Concentrator does not
power on when On/O
button is pressed
Battery is discharged or no
battery is present
Use external power supply or
replace battery with one that
is fully charged
AC Power supply is not
connected properly
Check power supply
connection and verify green
light is solid
DC Cable is not connected
properly
Check DC Cable connection
at the Concentrator and at
cigarette lighter or auxiliary
DC power source
Malfunction Contact your equipment
provider
No oxygen Concentrator is not
powered on
Press On/O button to power
concentrator
Cannula is not connected
properly or is kinked or
obstructed
Check cannula and its
connection to concentrator
nozzle
High Priority Alerts (Continued)
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