Bezzera ARIA Manual De Instrucciones página 40

BEZZERA ARIA-ARIA PID
MOD.
Problem
The coffee dispensed is
too cold
The coffee dispensed is
tepid
The coffee dispensed is
too hot
Coffee deposits on the
bottom of the cup
Troubleshooting/Solution
Possible causes:
1- The filter holders are cold.
2- The coffee is ground too finely.
3- The machine water circuit is dirty (lime-
scale).
4- The boiler pressure is lower than 0.8 bar
(0.08 MPa).
The coffee dispensed is tepid even if the
pressure is normal, between 1 and 1.2
bar (0.1 – 0.12 MPa). In this case, the
pressure detected is false.
Possible causes:
1- The boiler pressure is higher than 1.3
bar (0.13 MPa).
2- The machine is covered by something
that prevents it from cooling.
3- The machine was installed in a position
that does not allow air circulation.
Possible causes:
1- The coffee is ground too finely.
2- The filter holder is dirty on the inside or
the filter is damaged.
3- The grinding discs are worn.
40
Advice
In case 1, keep the filter hold-
er mounted on the group.
In case 2, adjust the grinding
of the coffee.
In cases 3 and 4, call a spe-
cialist technician.
Call a specialised technician
to check the bleed valve.
Meanwhile, to use the ma-
chine, open the steam tap
(Fig. 01; pos. 9), the boiler
pressure will drop to zero,
which will cause the heating
element to engage and the
temperature to rise. Perform
this operation daily when
turning on the machine.
In case 1, call a specialised
technician.
In the cases 2-3, reset the
machine cooling conditions.
Case 1 can be solved by ad-
justing the grinder correctly.
In case 2, clean the filter
holder or replace the filter.
In case 3, a technician needs
to be contacted.