Troubleshooting
HELiOS Marathon
TM
H850 Portable Oxygen Unit Home Use Guide
41
5 Troubleshooting
Overview
The following information is intended to help you
troubleshoot and solve simple operational
problems with your
HELiOS
MARATHON
™
H850
portable oxygen unit.
Potential Problems
Identify the problem you are having and take the
listed corrective action. If your problem persists,
contact your service provider or your
$"*3&*OD
Technical Support at 1.800
.
1. The portable oxygen unit does not pulse after
filling.
If during the filling process, the portable oxygen unit
is disengaged with the vent valve lever open,
pressure may be reduced within the portable oxygen
unit and cause a delay in its function. It may require
as much as 60 minutes to restore adequate pressure
for accurate oxygen flow. Additionally, the portable
oxygen unit will not pulse properly when improper
filling lowers normal operating pressures.
2. The portable oxygen unit makes a hissing sound.
The portable oxygen unit is most likely to hiss after
filling or with a change in the position of the
portable oxygen unit or when the flow control valve
is at a low setting. Hissing can last for approximately
ten minutes after filling. Hissing can be evidence of a
leak or normally occur to correct the internal
operating pressure of the unit.
