reneka SELECTION Style Manual De Instrucciones página 28

EN
Problem
The coffee is too cold
The coffee is tepid
The coffee is too hot
Coffee deposit in the
bottom of the cup
Diagnostics/Solution
Possible causes:
1- The portafilter is cold.
2- The coffee grind is too fine.
3- The water circuit of the machine is
dirty (lime).
4- The boiler pressure is lower than
0.8 bar (0.08 Mpa).
The coffee is tepid, although the
pressure is normal between 1 and 1.2
bar (0.12 Mpa).
In this case, the pressure measure-
ment is incorrect.
Possible causes:
1- The boiler pressure is higher than
1.3 bar (0.13 Mpa).
2- The machine is covered with
something that prevents it from
cooling.
3- The machine has been installed in
a position that prevents air circu-
lation.
There is a deposit of coffee powder in
the bottom of the cup.
Possible causes:
1- The coffee grind is too fine.
2- The portafilter is dirty inside, or
the filter is damaged.
3- The grinder mills are worn, call a
technician to replace them.
4- Too high pump pressure [>10 bar
(0.1 Mpa)] (volumetric pump ver-
sion).
28
SELECTION Style
Suggestions
In case 1, always keep the
portafilter mounted on
the AromaPerfect brew-
ing group.
In case 2, change the cof-
fee grind.
In cases 3 or 4, call a
skilled technician.
Call a skilled technician
to check the relief valve.
Meanwhile, in order to
use the machine, open the
steam valve, (Fig. 01; pos.
9) the boiler pressure will
drop to zero: This will con-
nect the heating elements
and the temperature will
increase. Continue this
operation every day when
turning on the machine.
In case 1, call a skilled
technician
In cases 2 and 3, reset
the machine cooling
conditions.
In case 1, it is necessary
to adjust the grinder cor-
rectly.
In case 2, clean the porta-
filter or replace the filter;
in all other cases call a
technician.