PN MN236 A | User Manual 11 - ENG
Sprint / Stroller / Hi Flow Stroller
Troubleshooting
The following information is intended to help you troubleshoot and solve simple operational problems that
you may experience when using your Sprint/Stroller/Hi Flow Stroller.
Issue
Solution
The Portable makes a
hissing sound.
• Hissing can occur to maintain the correct operating pressure within the Portable.
It is most likely to hiss after filling or when the position of the Portable is
changed. Hissing can last for approximately 10 minutes after filling. Additionally,
it can occur when the flow control valve is at a low setting.
• If the portable has been laid in an improper position return the portable to an
upright position and allow several minutes for the unit to stabilize
The Portable flow stops
during use.
• Ensure that the cannula is firmly attached to the Oxygen Outlet.
• Ensure that the cannula is not kinked.
• Check the contents indicator/level gauge and fill the portable if needed.
• Ensure the flow control knob is not in the off (“0”) position.
The Portable does not fill. • Verify that there is oxygen in the Reservoir.
• Ensure that the Portable and Reservoir fill connectors are fully engaged through-
out the filling process.
The Portable vent valve
does not close properly
at the end of the filling
process.
• If the vent valve fails to close and the hissing sound and oxygen vapor cloud
continue, carefully remove the Portable by depressing the release button on the
Reservoir. Venting from the bottom of the Portable will stop in a few minutes.
Allow the unit to warm until you can close the vent valve. The Portable may
require as much as 60 minutes to restore adequate pressure for accurate oxygen
flow. If needed, use an alternate source of oxygen such as a flow control valve
attached to the Reservoir.
The Portable does not
disengage easily from the
Reservoir after filling.
• The Portable and Reservoir fill connectors may have become frozen.
• DO NOT USE FORCE. Allow a few minutes for the frozen parts to warm, then dis-
engage the Portable when the ice has melted. To prevent the units from freezing
together, always wipe the male fill connector on the Reservoir and the female fill
connector on the Portable with a clean, dry cloth before filling.
