MELAG MELAquick 12+ - Quality, Power and Temperature Errors; Feed Water Quality and EMC Errors; Power Supply and Pressure Drop Errors; Door Seal and Temperature Sensor Errors

12 System malfunctions
61
Event Possible causes What you can do
F25 The quality of the feed water is very poor
(conductivity ≥65μS/cm).
--
When using the feed water container:
Water of insufficient quality (e.g. tap water)
was used.
1. Empty and clean the container.
2. Fill the container with water of appropriate quality
(EN13060, Appendix C).
When using a MELAG water treatment unit:
MELAdem40:
The mixed-bed resin cartridge is exhausted.
Replace the mixed-bed resin (art. no.ME61026), see the
user manual of the MELAdem40 water treatment unit.
MELAdem47:
The mixed-bed resin cartridge, the pre-filter
or the activated coal filter is exhausted.
1. Replace the mixed-bed resin (art. no.ME37470) and, if
necessary, the pre-filter and activated charcoal filter,
see the user manual of the MELAdem47 water treat-
ment unit.
2. Empty the pressure tank (if possible until it is half full)
and wait until it has been filled again. An empty pres-
sure tank requires approx. 1 h to fill.
PLEASE NOTE: The message may also continue to be
shown after the filter has been replaced until the water
remaining in the pressure tank has been consumed.
F26
F27
Electromagnetic malfunctions in the power
supply.
1. Check the building-side socket / test the steam
sterilizer using a different socket or circuit or connect
to a mains filter.
2. Upon repeated incidence, arrange for an electrician to
check the electricity supply for electromagnetic mal-
functions.
F32 The steam sterilizer was switched off at the
power switch during a program run.
Never switch off the steam sterilizer at the power switch
during a program run. Always abort a program with the
'Start-Stop' key.
The power plug has been disconnected or
has not been connected correctly in the
socket.
1. Check whether the power plug is connected, the power
cable has suffered damage, or a loose contact or loose
plug connections is the cause.
2. Plug the power plug back into the mains socket.
Power failure in the building supply. 1. Have the on-site installation checked (e.g. circuit
breakers).
2. Test the steam sterilizer on another socket or circuit.
F33 The pressure in the sterilization chamber
drops too far during the sterilization phase.
The door does not close tightly, possibly
because the door gasket is soiled or worn.
1. Check whether the door gasket is soiled or worn.
2. Clean or, if necessary, replace the door gasket, see
Replacing the door gasket [}page50].
F34 The sterilization temperature on temperature
sensor 1 was undercut.
The steam sterilizer is overloaded.
Comply with the maximum permissible load quantities, see
Selecting the program [}page33].
The sieve tray in the sterilization chamber is
soiled.
Remove the sieve tray from the sterilization chamber,
clean and replace it, see Sieve tray of the sterilization
chamber [}page49].
The door does not close tightly, possibly
because the door gasket is soiled or worn.
1. Check whether the door gasket is soiled or worn.
2. Clean or, if necessary, replace the door gasket, see
Replacing the door gasket [}page50].
Electromagnetic malfunctions in the power
supply.
1. Check the building-side socket / test the steam
sterilizer using a different socket or circuit or connect
to a mains filter.
2. Upon repeated incidence, arrange for an electrician to
check the electricity supply for electromagnetic mal-
functions.