RONDELL RDE-1110 Betriebsanweisung Seite 28

tions. For the brewing unit, use specialized tablets to
clean the brewing unit from coffee oils.
Notes: We recommend cleaning the brewing unit of cof-
fee oils after every 500 cups of coffee.
– Pressing the «DESCALING» icon starts the descaling
of the coffee machine and the icon appears on the dis-
play (fig. 37). To start the process, press the «
and follow further instructions on the display.
DESCALING (decalcination)
To prolong the life of the coffee machine, it is critical to
clean the unit from scale in a timely manner. The descal-
ing frequency depends on water hardness in your region.
To determine the level, we recommend using paper in-
dicator testers that are immersed in water and change
color depending on the amount of calcium, magnesium
and iron. Based on the data obtained, it is necessary
to choose one of the following decalcination frequency
schemes:
Water
Level hardness,
mg/l
Level 1 (soft) 0-50
Level 2
51-120
(moderately hard)
Level 3 (hard) 151-250
Level 4 (very hard) 251-425
To descale, use specialized coffee machine cleaners in
the form of liquids or tablets.
– Fill the tank (4) with clean water and add the descaling
agent according to the instructions for the cleaning
agent and place it in the coffee machine.
– Place a suitable container (at least 1.5 L) on the tray
(1), under the coffee dispensing unit (2).
Troubleshooting
Problem
The coffee machine does not
switch on
The coffee grinder is making odd
noises
– Press the «
The descaling solution will be dispensed at regular in-
tervals and the display will show a dynamic icon with the
process (fig. 39).
When the cleaning cycle is completed, the following
» icon
icon will appear on the display with further instructions
(fig. 40).
– Drain the remaining cleaning solution from the tank (4)
– Fill the tank (4) with clean water, without exceed-
– Press the «
As soon as the machine finishes the rinsing cycle, it will
return to standby mode.
Replacing sealing rings
The unit is supplied with sealing rings for the brewing
unit.
The need to decalcify
Rings must be replaced if they are worn or damaged.
(number of cups)
ATTENTION! Replacement should be carried out when
the unit is unplugged.
about 880
– Open the brewing unit compartment door (11) of the
about 440
– Remove the used coffee grounds container (13)
about 280
– Remove the brewing unit (12) (fig. 29).
about 240
– Clean the brewing unit by immersing it in a container
– Replace the sealing rings on the brewing unit accord-
WARNING SIGNALS AND ICONS
When warning symbols/icons appear on the display, fol-
low the appropriate instructions.
Possible reason
The unit is unplugged from the mains
The coffee grinder is clogged
There are foreign objects caught up in the
coffee grinder
28
» icon to start the descaling process
(fig. 38).
and rinse it with clean water.
ing the «MAX» mark, and put it back into the coffee
machine.
» icon to start the rinsing process.
coffee machine (fig. 27).
(fig. 28).
with clean water for 30-40 minutes.
ing to the drawings (fig. 41-43)
Solution
Plug the coffee machine into the mains
Clean the coffee grinder according to this
manual
Unplug the coffee machine from the mains,
remove foreign objects from the coffee grinder
and wipe it with a dry cloth