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ENGLISH
15. Problem solving
PROBLEM
CAUSE
SOLUTION
1.
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and the water flows out
of the safety valve.
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the boiler or from a circuit of
the unit has a leak.
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manual charging button, and the
boiler heat exchangers.
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eliminate the leak.
2.
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and vents the steam.
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system (the electrical heating
element is always connected).
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(the safety valve trips in at
2-2.5 bar).
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heating element and the pressure
switch.
3.
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started properly but the
water in the boiler does
not warm up.
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defective or is not connected.
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1.
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connected to the power supply.
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thermostat has tripped in and check
its proper operation.
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position 2
4.
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flowing from a serving
unit.
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excessive quantity for type of
filter used.
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or the quantity of ground coffee.
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circulation pipe, the valve (flow
variator) of the group, the water
dispenser and the solenoid valve of
the group are not clogged.
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metering, check the displacement
meter and its valves.
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wiring and the fuse in the electronic
control unit.
5.
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servings of espresso
coffee are not constant
or vary on the different
units.
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electronic control unit or of the
displacement counters.
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solenoid valve.
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separately on each serving unit. If
the problem persists, replace the
displacement meter of the serving
unit affected.
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serving group.
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6.
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program the serving
quantities on unit 1 and
to copy them on the
other units.
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defective displacement meter
of unit 1.
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meters electrical wiring.
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7.
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alarm.
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or defective.
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connections, the control unit and the
fuses.
8.
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level without water.
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closed.
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autolevel.
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water supply is open.
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