13 Malfunctions
70
Messages
Event
Possible causes
What you can do
248
Vacuum test was carried out despite residual
moisture in the sterilization chamber or with
a load
Repeat vacuum test, when steam sterilizer is
cold and empty
Warning and error messages
Incident
Possible causes
What you can do
61
When using an external water storage
container:
a) Air is in the intake line from the storage
container to the steam sterilizer.
b) The suction filter of the external water
storage container is blocked.
a) Check whether sufficient feed water is in
the storage container; the end of the intake
hose is submerged in water and that no air is
being drawn in. Please note that the
container may stand max. 1.5 m deeper than
the steam sterilizer otherwise water cannot
be drawn in.
b) Check whether the suction filter in the
external water storage container is soiled or
blocked and clean if necessary.
When using a MELAG water treatment unit:
c) Residual air is in the feed system of the
water treatment unit after initial
commissioning or after replacing the mixed-
bed resin cartridge.
d) The pressure tank of the MELAdem 47 is
not sufficiently filled.
e) The water inflow tap is not open or the
pressure tank of the MELAdem 47 is closed.
c) Acknowledge the malfunction message
and start the program repeatedly until the
malfunction message is no longer displayed.
d) Please note that after initial
commissioning of a MELAdem 47 it takes c.
1 h until the pressure tank is sufficiently full
with water.
e) Check whether the water inflow tap for the
water treatment unit is open. When using a
MELAdem 47, check whether the tap on the
pressure tank is open.
When using a central water treatment unit:
f) The central water supply is interrupted or
the flow pressure is insufficient.
f) Check whether all inflow valves from the
central system to the steam sterilizer are
open. Arrange for an inspection of the flow
pressure of the central water treatment unit
via a flow pressure gauge (min. 0.5 bar at 5 l/
min).
63
Very poor feed water quality (conductivity ≥ 60 µS/cm).
When using an external water storage
container:
a) Water of insufficient quality, e.g. tap water
was used.
a) Empty and clean the container and fill it
with water of the required quality (EN 13060,
Appendix C).
When using a MELAG water treatment unit:
b) MELAdem 40: The mixed-bed resin
cartridge is exhausted.
c) MELAdem 47: The mixed-bed resin
cartridge, the pre-filter or the activated coal
filter is exhausted.
b) MELAdem 40: Replace the MELAdem 40
mixed-bed resin cartridge in accordance with
the applicable operating manual.
c) MELAdem 47: Replace the mixed-bed
resin cartridge and if necessary, the pre-filter
and activated carbon filter of the MELAdem
47 in accordance with the applicable
operating manual. Empty the pressure tank
(if possible until it is half full) and wait until it
has been filled again. An empty pressure
tank requires c. 1 hour to fill.
Please note
: The notification may also
continue to be shown after the filter has been
changed until the water remaining in the
pressure tank has been consumed.
64
see event 63
65
see event 63