Display Of Alarms; Volumetric Meters Alarm; Automatic Level Alarm; Maximum Water Level In Boiler Alarm - La San Marco NEW 105 TOUCH Serie Bedienung Und Wartung

10. Display of alarms

10.1 Volumetric meters alarm
The button relating to the volumetric meters of all the units lights up. When coffee is dispensed, the LeD inside
it must flash. If the volumetric meter shuts down for more than two minutes during dispensing, the electronic
control unit stops dispensing coffee and signals the alarm by the flashing of button a (short coffee first unit).
Note:
Make sure that the coffee has been dispensed into the cup correctly; if not, see the chapter entitled "TROU-
BLESHOOTING".
10.2 Automatic level alarm
If the water level in the boiler is below normal and the pump is not able to restore that level within 150 sec-
onds, the electronic control unit of the appliance will stop the automatic filling and signal the problem via the
simultaneous flashing of the double short coffee button of all units plus the large tea key and the first of the
three LeDs of the electronic level control.
Note:
If the boiler was not filled correctly, see the chapter entitled "TROUBLESHOOTING".
10.3 Maximum water level in boiler alarm
If the level of water in the boiler is over the safe level, the electronic control unit will stop automatic filling and
signal the problem through simultaneous flashing of the serving buttons plus the three LeD's of the electronic
level control.
Note:
If the maximum boiler level alarm trips, see the chapter entitled "TROUBLESHOOTING".

11. Safety devices

11.1 Manual reset safety thermostat
The safety thermostat is located next to the control unit and can be accessed by removing the left side panel
from the coffee machine. The thermostat probe, placed inside the electric heating elements, cuts the electric
power supply any time there is an abnormal rise in temperature. The heating elements no longer heat the
water in the boiler and it will not be possible to use the appliance correctly. Call the LA SAN MARCO SPA
technical service centre for assistance.
The safety thermostat will have to be reset by a technician authorised by LA SAN MARCO SPA,
who must first remedy the cause of the coffee machine shutdown.
11.2 Safety valve
The safety valve is installed on the upper part of the boiler, in the part corresponding to the area occupied by
the steam. The valve is activated if there is a considerable pressure increase inside the boiler. The valve rap-
idly lowers the pressure by expelling the steam in the atmosphere (the valve trips at 2÷2.5 bar). If the safety
valve trips, the steam is held and dissipated inside the machine body, so as to avoid hazards for the persons
around the machine.
In case of activation of the safety valve, switch off the machine and immediately contact the spe-
cialized technician.If the safety valve is set off, switch the machine off and immediately contact
the authorized LA SAN MARCO SPA technician.
80