16
TROUBLESHOOTING GUIDE
SYMPTOM
PROBABLE
CAUSE
SOLUTION
NOTES
* Green and Yellow
lights on
* Continuous Alarm
* Concentrator
stops running
* Hour meter still
elapsing time
1. The valve plug
is loose
2. Exhaust sound
buffer box
jammed
3. Valve is blocked
4. Circuit board
failure
Check and connect
the valve plug to the
circuit board.
2. Replace part.
3. Replace part.
4. Replace part.
All repairs must be
completed by an
authorized repair
center
* Nasal Cannula
is fogging or has
water droplets
1. Improper venti-
lation is causing
elevated operat-
ing temperature
2. Compressor fan
is not running or
running slow
3. Water tempera-
ture in humidifier
is too high
4. Water exceeds
max level in
humidifier
1. Ensure device is
at least 4 inches
from walls, heat-
ers, or any other
obstructions.
2. Remove any
obstructions
blocking the fan,
or replace.
3. Add cold water
to the humidifier
bottle.
4. Remove excess
water.
All repairs must be
completed by an
authorized repair
center
* Concentrator is
running, but yel-
low light is on
1. Oxygen concen-
tration is safe but
decreasing
2. Unit is over-
heating due to
blocked air intake
1. Clean or replace
filters.
2. Ensure device is
at least 4 inches
from walls, heat-
ers or any other
obstructions.
If issue persists,
contact home
care provider
immediately.
* Concentrator is
not running
* Red light is on
* Continuous audi-
ble alarm sounds
1. Low pressure
2. High pressure
1. Clean or replace
filters.
2. Contact equip-
ment provider
immediately.
If issue persists,
contact home
care provider
immediately.
* Concentrator is
not running
* Continuous audi-
ble alarm sounds
1. Compressor open
circuit alarm
2. Compressor short
circuit alarm
1. Contact equip-
ment provider
immediately
2. Contact equip-
ment provider
immediately
All repairs must be
completed by an
authorized repair
center
