CAIRE HELiOS Marathon H850 Home Use Manual page 48

5. The H850 Portable does not fill.
• Verify that there is oxygen in the Reservoir. If the
Reservoir has a pressure gauge, make sure it reads
between 24-psi (1.7 bar) and 48-psi (3.3 bar).
Contact your home care provider if the reading is
not within this specified range.
• Ensure that the H850 Portable and Reservoir fill
connectors are fully engaged throughout the
filling process.
6. The H850 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 H850 Portable by depressing the release button on
the Reservoir. Venting from the bottom of the H850
Portable will stop in a few minutes. Keeping the H850
Portable upright, allow it to warm until you can close
the vent valve.
The H850 Portable may require as much as 60 min-
utes 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.
Troubleshooting
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