Chapter 10 – Malfunctions
Warnings
Warning
Warning: Door is open
and
autoclave cannot start
Warning: No feed water /
add feed water –
autoclave cannot start
Warning: No feed water /
check feed water inlet
Feed water quality poor /
replace cartridge/module
Feed water quality
inadequate / cannot start
autoclave
Please wait
pre-heating chamber
Warning/Change the
sterile filter
Output medium is not
ready
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Possible causes
The door contact was not
closed when the autoclave
was started.
Only with feed water supply
from the internal water
storage tank:
Insufficient feed water in the
internal water storage tank.
The warning appears after a
program has started. The
integrated flow sensor does
not close.
Conductivity of the feed
water too high.
Conductivity ≥ 40 µS
NitraDem filter must be
replaced.
Conductivity of the feed
water is too high.
Conductivity ≥ 65 µS
Message appears during the
program start phase. The
autoclave has not yet
reached the start
temperature.
Min./max. pressure during
ventilation drying has fallen
below/exceeded,
sterile filter dirty or torn.
The autoclave is being
operated without an output
medium but an output
medium has been registered.
Output medium is not
correctly connected.
What you can do
Push the sliding latch down to the stop.
Check the level of the feed water in the
internal water storage tank and add feed
water if necessary.
Feed water supply from the internal
water storage tank
If this message occurs repeatedly, have
your specialist supplier's customer service
inspect the unit.
Feed water supply from the NitraDem
Direct Connect
Check the water preparation unit, if
necessary, open the inlet to the unit.
If this message occurs repeatedly, have
your specialist supplier's customer service
inspect the unit.
Cannot start the autoclave by pressing
the (S) key again
Feed water supply is off:
NitraDem Direct Connect:
Change the NitraDem filter, see
instructions for use, item 2.5.
Can no longer start the autoclave:
See warning: Feed water quality poor /
replace cartridge/module.
The autoclave starts automatically after
reaching the start temperature.
Replace the sterile filter.
NOTE! Message appears at the end of the
program and in the last line of the log
output.
In the log output menu, set the option no
Output medium.
Check that the data cable is correctly
connected to the autoclave and the output
medium.