La San Marco 100 Series, Использование и обслуживание

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9. idle periods
If the machine is to remain idle for long periods (weekly closing days, holidays, etc.), take the following precautions:
1) Turn the main switch to
0 (zero) and as necessary disconnect the power cord or the main switch of the
electrical mains.
2) Close the cut-off valve of the water mains.
3) If you think the temperature might drop below 5 °C, completely drain the water system of the machine.
4) Wash the components of the machine as described in the paragraph on routine maintenance.
5) Cover the machine if necessary.
10. Display of alarms
10.1 Volumetric counter alarm (100 E)
On models 100 E, all equipped with six-lED bar, if there is no detection of impulses of the volumetric counter
for 5 seconds, the lED’s that are already on will start flashing to indicate the anomaly. If the anomaly is de-
tected before any of the lED’s on the bar come on, only the lED of the short coffee key for the concerned
group will flash.
If no impulses of the volumetric counter are detected for 45 consecutive seconds, the amount of coffee being
served is automatically interrupted.
Note:
Make sure that serving into the cup has taken place correctly. If serving has not occurred correctly, see the
chapter “PROBLEMS AND SOLUTIONS”.
10.2 Autolevel alarm
If the water level in the boiler is below normal and the pump is not able to restore that level after 150 seconds,
the electronic control unit of the machine will stop automatic filling and signal the problem via simultaneous
flashing of the double short coffee button of all groups plus the large tea key and the first of the three lED’s
of the electronic level control.
Note:
If the boiler is not properly filled with water, see the chapter on problems and solutions .
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 on problems and solutions
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 machine. The thermostat probe, placed inside the electric heating elements, cuts the electric power
supply any time there is an abnormal increase in temperature. The heating elements will no longer hear the
water in the boiler and it will not be possible to use the machine correctly. Contact a technician from the lA
SAN MARCO SPA technical service centre.
The safety thermostat will have to be reset by the specialized technician LA SAN MARCO SPA,
who must first remove the cause of the malfunction.