Maintenance - ECM Elektronika II Prof User Manual

After this procedure let the descaler work for approx. ½ hour.
8
9 Have the descaling liquid circulate through the group by pressing the star button.
10 Switch the machine off and empty the boiler by dispensing hot water. Then close the hot water valve again.
It is recommended to unscrew and remove the nozzle of the hot water dispenser so that no dirt
can accumulate inside the nozzle.
11 Rinse the water tank and remove lime or descaler residues.
12 Fill fresh water into the water tank.
13 Switch the machine on. Thus, the boiler is automatically filled with fresh water.
14 Refill water into the water tank.
15 Start the cleaning mode with the blind filter to remove descaler residues from the expansion valve. Then remove
the blind filter from the filter holder.
16 Press the star button for approx. 60 seconds to rinse the heat exchanger.
17 Repeat point 9 to 11 three to five times in order to rinse the boiler until clear, neutral smelling water comes out of
both the group head and the hot water release.
Important!
These descaling instructions are meant for prophylactic descaling only. Please do not descale the
machine if it is already calcified. While descaling the machine, the lime residues can plug several
components, like valves, gauges etc., causing damage to your espresso coffee machine. In this case,
please contact your specialised dealer. It is probable that a professional descaling has to be carried out
which requires the disassembling of boiler and tubing.
Damage to persons or to the material, caused by calcification in and on your machine, is not subject to
the manufacturer's liability.
In this case the warranty expires as well. Machines will only be accepted for repair after having
received technical advice and with written acknowledgement.
Please do not enclose loose parts e. g. filter holders or drip tray when sending the machine in for
repairs / maintenance.

7.4 Maintenance

Replacing the group gasket
Replace group gasket and shower plate at the same time.
1 Switch the machine off (power switch in lower position) and disconnect the power cord.
2 Let the machine cool down to ambient temperature.
3 Follow the steps as indicated below:
1
Brew group in the beginning.
Instruction manual ELEKTRONIKA II PROFI
2
Use a flat screwdriver to pry out the shower
plate and the group gasket.
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3
The shower plate and the gasket are now
nearly removed.
ΕNGLISH