Faultt – Cause – Remedy
36
Fault / Message Cause Remedy
Supply press. low
Alarm indicator flashes,
intermittent tone sounds.
Ventilation ceases.
O2 cylinder empty, cylinder valve
closed, probe not plugged into piped
medical gas system.
Check gas supply in O2 cylinder,
connect to full O2 cylinder. Open
cylinder valve. Check gas pressure in
piping system, ensure that system
pressure is more than 2.7 bar. Push
probe fully into wall socket.
XX XX XX XX XX
Ventilator INOP
Ventilation ceases!
Alarm indicator lights up,
continuous tone sounds.
(XX = fault code)
Internal machine fault. Switch off ventilator and disconnect
from external power supply.
Switch ventilator on again.
If fault recurs: use alternative machine
and call DrägerService.
Displayed measured value MV is
implausibly high
Flow measuring hoses kinked.
Water in flow measuring hoses.
Straighten out kink.
Drain water from flow measuring hoses.
When switching on:
no alarm tones of the same length
to be heard.
Internal machine fault. Switch ventilator off and on again.
If fault recurs, use alternative machine
and call DrägerService.
No message.
External power supply connected,
green LED does not light up.
Output voltage of power supply unit
or DC/DC converter outside the
range of 11 to 13 V.
Check plug connection or replace
power supply unit or converter.
No message,
no alarm,
ventilator does not work.
No internal or external power supply
available.
Fit fully charged NiCd battery pack or
new alkaline manganese battery pack.
Use alternative machine if applicable.
Replace fuse, page 37.
No message.
Continuous tone sounds for at
least 7 seconds.
Sudden failure of the internal power
supply when external power supply is
not connected.
Patient must immediately be
ventilated by hand!
Connect external power supply.
Check internal power supply.
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