Troubleshooting
44
HELiOS Marathon
TM
H850 Portable Oxygen Unit Home Use Guide
7. Frost forms on the oxygen supply line connected
to the reservoir.
WARNING
Do not touch liquid oxygen or parts that have been
in contact with liquid oxygen. Liquid oxygen is
extremely cold (-297 °F / -183 °C). When touched,
liquid oxygen, or parts of the equipment that have
been carrying liquid oxygen, can freeze skin and
body tissue.
Frost on the supply line is most likely the result of a
leaky connection or a split in the line.
a. If the connection at the reservoir outlet is leaking,
keep tightening the nut until the leak stops.
b. If the supply line is split or damaged, disconnect
the line from the reservoir and contact your
home care provider.
8. The portable oxygen unit does not disengage
easily from the reservoir after filling.
WARNING
Do not touch liquid oxygen or parts that have been
in contact with liquid oxygen. Liquid oxygen is
extremely cold (-297 °F / -183 °C). When touched,
liquid oxygen, or parts of the equipment that have
been carrying liquid oxygen, can freeze skin and
body tissue.
WARNING
Keep clear. Do not stand so any body parts extend
directly over the reservoir fill connector when
disengaging the portable oxygen unit. Contact with
liquid oxygen can cause personal injury.
The portable oxygen unit and reservoir fill
connectors may have become frozen. Do not use
force. Allow a few minutes for the frozen parts to
warm. After the ice melts, disengage the portable
