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EMERGENCY SITUATIONS
A careful operator in good psychophysical condition is the best guarantee of safety.
The operator must keep a safe distance from water or steam outlets, since, in normal conditions of operation, they are scalding
hot.
In case of fire, powder extinguishers should be used.
Do not direct jets of water against the machine, as they could cause short circuits.
If the machine is subjected to flames for a long period, the tanks and pressure tubes could explode; therefore, use great care to
avoid being hit by the hot fluid contained in them.
In case of failure or malfunction of the machine, shut the machine down and do not attempt any repairs.
Any repairs on the machine must be carried out by the manufacturer or by an authorized LA SAN MARCO service center.
For your safety, always ask for original LA SAN MARCO spare parts.
The use of any other than original spare parts voids the guarantee and the conformity certifications that come with the machine.
CONTROL OF DISPLACEMENT METERS FOR ALL AUTOMATIC MODELS
The green led 65 is used to check the proper operation of the DISPLACEMENT METER. This led should always be lit, and in
the coffee serving phase it should flash with a frequency proportional to the number of turns of the disk wheel connected with
said meter. If the led does not flash when the unit is operated, it means that the disk wheel is jammed or that the coffee is
ground too fine, with the consequent water flow smaller than the required range of operation of the disk wheel (about 50
3
cm
/min). If the disk wheel remains jammed for more than two minutes, the unit stops and an alarm is displayed through the
flashing of the led of the first button at upper left 34, for strong coffee.
FAILURE OF RESUMPTION OF NORMAL BOILER LEVEL FOR ALL AUTOMATIC MODELS
This alarm is displayed by the flashing of the led corresponding to the button at upper right 37, for double strong coffee (of all
the units); it appears two minutes after the failure to automatically top up the boiler to the proper level, and it shuts down the
pump.
When the machine is switched off and restarted, the alarm is reset and the pump resumes its function.
The alarm will reappear after two minutes if the causes of the failure to add water into the boiler have not been corrected (in
Mod. 95-26, this alarm disables the electric heating elements in the boiler.)
FAILURE TO RESUME NORMAL BOILER LEVEL ON PRACTICAL AND SPRINT MODELS
The water level in the boiler is controlled through the two leds marked MAX (green) and MIN (red).
When the water touches the probe, the green led is lit.
When the water no longer touches the probe, and the automatic topping-up starts, the green led flashes.
If the level is not topped-up within about 20 seconds, the green led goes off and the red led starts flashing.
If after about two minutes the proper level has not been restored, the red led stops flashing and becomes a steady light and the
pump is shut down.
MANUALLY RESET SAFETY THERMOSTAT
No alarm signal is provided for this problem, which has the consequence of cooling the water in the boiler, caused by the
thermostat, which cuts off power to the electric heating elements when the probe located between these elements indicates an
excessive temperature. The thermostat is reset by means of the button 75 located on the electronic unit support door. This oper-
ation must be carried out by the service center, which must first correct the cause of the shutdown.
Note: the pump shutdown is generally caused by the abnormal lowering of the water in the boiler.
ATTENTION
Whenever there is a problem that shuts the machine cut off the power supply and contact the service center.
All manuals and user guides at all-guides.com
F O R T H E U S E R
ALARM SIGNALS
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