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110
8. Troubleshooting
8.1 General
Fault
No sound of motor,
Faulty fuse
power indicator
does not light up,
mains failure alarm
No power
sounds.
Device running, but
Device
intermittent a–cous-
running hot,
tic warnings are
air intake slits
heard and red fault
blocked.
indicator flashes.
After running for a
long period, device
emits intermittent
acoustic warnings
Compressor
and red fault indica-
not running.
tor flashes, no sound
of motor to be
noticed.
Faulty tube
Flow at outlet from
connections.
device, but not at
Bend tubes.
nasal cannula.
Faulty seals
No warning from
or leak in
device.
screw con-
nection
Oxygen
distributor in
Inadequate flow
bubble humi-
difier
blocked.
English
Cause
Remedy
Change fuse (see
"8.2 Changing
fuses" page 114).
Ensure power sup-
ply.
Clean air intake slits.
Allow device to cool
down.
Check whether air
intake slits are
blocked. Allow
device to cool tho-
roughly. Restart
device after a while.
If the warning signal
sounds again, the
device is defective.
Consult authorized
dealer.
First check whether
flow is indicated at
the dosage monitor.
Check all tube con-
nections and screw
connections for
leaks, and replace
seals if necessary.
Clean oxygen distri-
butor or replace if
necessary.
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