Technician Menu; Failures - Koro Espresso UL 120V Manuel D'installation, D'utilisation Et D'entretien

TECHNICIAN MENU

Below is listed a summary explanation of the main func-
tions useful for managing the operation of the machine,
grouped by use logic and not necessarily in the order in
which they are displayed in the menu.
The software version can be updated using the specific
systems (PC, Flash, Upkey etc.), therefore all is described
in this chapter is only to be taken as an example.
For further information and detailed explanations refer to the
dose selection table supplied with the machine and to the
programming manual available through our sales organisa-
tion, at our after-sales service, referring to the version
number that is displayed when switching on the machine.
When pressing once the programming button located on the
coin mechanism compartment, the machine goes into
"Filler menu" mode.
When pressing button " " from "Filler" mode, the machine
is preset to "Technician menu".
Note:
When pressing button " " from "Technician" mode, the
machine returns to "Filler menu" mode.
The first option of the programming menu is displayed,
enabling the following functions:

FAILURES

The machine id equipped with various sensors for monitor-
ing the different functional units.
When a malfunction is detected, a failure is "indicated" and
the machine (or part of it) is placed out of service. The failure
is stored in the appropriate counters.
The failure monitored by the software may regard functional
units not present in the specific model; they are in any case
listed when scrolling the menu.
The possible failures are indicated in the following cases:
Water failure
If the float is closed for more than one minute, the water inlet
solenoid valve will remain energized until the water flow is
restored.
If the machine is equipped with an internal water supply tank
the pump will be switched off.
Waste container full
The machine locks if the liquid waste container float is
triggered.
Air-break
The machine is locked if after 10 selections the float has
never signalled the lack of water.
Volumetric counter
Failed computation of the volumetric counter (flow-meter)
within a max. given time.
Boiler
The machine will lock if after the maximum time of heating
from the machine start, or from the last selection, the boiler
fails to reach the operating temperature.
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CAN-BUS board
Failed dialogue between C.P.U. board and can-bus board
(FB unit control).
Coin mechanism
The machine is locked if it receives a pulse longer than 2
seconds on a validator line or the communication with the
serial coin mechanism does not take place for more than 30
seconds (Executive protocol) or 75 seconds (BDV proto-
col).
Machine lock
The machine is locked upon reaching the number of
selections set with the "selection counter" function.
Grinder blockage
If the coffee grinder does not rotate or rotates too slowly, the
espresso coffee selections are disabled. Decaffeinated
based selections remain available.
Espresso unit
Due to mechanical blocking of the unit.
The machine is not locked, but all coffee-based selections
are disabled.
No coffee
If the function is enabled from the programming menu, the
display indicates the message "Insert coffee" if the grinder
exceeds the grinding velocity for longer than 5 seconds.
RAM Data
One or more areas of the RAM contain wrong data which
was corrected with the default values.
The machine will continue to function, but it would be
advisable to initialise as soon as possible.
Fresh-brew piston
Due to wrong positioning of the unit.
The machine is not locked, but all fresh product based
selections are disabled.
Fresh-brew scraper
Wrong positioning of the grounds ejection scraper.
The machine is not locked, but all fresh product based
selections are disabled.
Espresso lock
The machine is locked upon reaching the number of coffee
selections set separately with the "selection counter" func-
tion.
Instant prod. lock
The machine is locked upon reaching the number of instant
product selections set separately with the "selection coun-
ter" function.
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