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Display
Medium priority
Unit failure!
Excess
Medium priority
temperature
Acoustic signal for
at least 120
Display
seconds, no
vanished
display visible.
Medium priority
Unit failure!
Medium priority
Code .....
If there are defects that cannot be rectified at once, please contact Weinmann or
your dealer immediately to have the unit repaired. To avoid greater damage, do not
use the unit.
Alarm
Overheating of the
unit due to direct
sunlight
The unit was
operating outside
the permitted
temperature range
No mains voltage
available
The battery
VENTIpower is
discharged.
Problems with
electronics or running
the program.
Water droplets in
the pressure
measurement hose
Sealing plugs still on
pressure
measurement hose
after hygienic
preparation.
Cause
Let the unit cool down and
find a more suitable place
to locate it.
Check that power supply
and power supply cables
are securely connected.
Check outlet is working by
connecting another piece of
equipment (e.g. a lamp)
Remove the VENTIpower
from the BiLevel ST 22 and
recharge. Continue
operating BiLevel ST 22
using a mains socket.
Disconnect power and
reconnect. Turn the unit on
again
Dry the pressure
measurement hose as
described in 5.2
Remove both sealing plugs.
Disconnect power and
reconnect. Turn the unit on
again without the hose
system.
Rectification
Troubleshooting
37
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