PN MN234 C | User Manual 9 - ENG
Liberator
Troubleshooting
Issue
Solution
Inadequate Flow
• Verify flow control knob is on correct flow rate setting
• Verify flow control knob is not set in between flow rates.
• Verify liquid oxygen is in unit
• Verify if cannula is kinked or pinched
• Verify if cannula is properly connected to unit
NOTE: If issues persists, contact your service provider.
The liquid level meter
does not work or is not
accurate.
• The battery may need to be replaced or the meter re-calibrated. Contact service
provider for assistance.
The low battery LED
illuminated on liquid level
meter.
• Contact service provider for assistance.
Frosting on coils of
Liberator.
• Frosting on coils is normal operation when breathing off of Liberator.
There is frosting on tank
or side of Liberator.
• Frosting on outside of tank is abnormal; contact service provider for assistance.
There is a hissing sound
emanating from Liberator.
• During normal operation the unit's primary relief valve will open from time to
time to relieve excess pressure, especially soon after filling.
• If hissing is persistent or abnormal, this could indicate excess pressure being
vented off or a leak in the system. Contact service provider for assistance.
Liquid Oxygen evacuating
from blue QDV.
• The QDV may have frozen open. Open windows if possible and evacuate area
immediately. Contact service provider.
• To prevent frozen QDV, be sure to wipe QDV with dry lint free cloth before and
after filling your portable.
Condensation or water
pooling up on floor.
• As the frost melts on the coils, water may accumulate on the floor if the con-
densate bottle is not used or is full. Verify that condensate bottle is installed
properly and emptied as needed.
Portable takes a long
time to fill.
• It could take several minutes to fill portable device if the portable device is warm
or hasn't been used recently.
• Consult user manual for your portable liquid oxygen device.
Portable not filling.
• Ensure reservoir tank has sufficient liquid to fill your portable device. Ensure
portable device is pushed onto QDV correctly and the portable vent valve lever
is held in the open position.
• Consult user manual for your portable liquid oxygen device.
