CONCETTO
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16 - TROUBLES, CAUSES AND CURES
Here is a list of the possible machine troubles.
The symbol in the “cure” box means that the operation must be carried out by the Maintenance Technician only.
TROUBLE CAUSE
CURE
The machine does not start
Display message:
““
““
“
DUMPDUMP
DUMPDUMP
DUMP
BOXBOX
BOXBOX
BOX
FULLFULL
FULLFULL
FULL
””
””
”
Grinder error
Instead of coffee only water is
brewed
No water or steam supply
Coffee flows too rapidly
Coffee flows too slowly
Coffee is not hot enough
Coffee has not enough cream
The machine requires too much time
to warm up, the water quantity is
reduced
The brew group cannot be removed
The brew group cannot be refit
No voltage
Dump box full
Coffee grinder unit blocked
The button selecting pre-ground coffee has
been pressed but the relative container has
not been filled with instant coffee.
The steam/hot water spout’s hole is
clogged
Grinding is too coarse
Grinding is too fine
The cup has not been preheated
The machine has not yet reached the
suitable temperature
The coffee blend is not appropriate, coffee
is not fresh off the roasting, the coffee powder
has been ground too finely or too coarsely.
The machine circuit is clogged by scale
The brew group is not in the right position
(N)
The brew group is not in the right position
(N)
Check:
- if the plug is connected
- if the all-pole switch (if any) is on
- the system fuses
- the electric connections
Empty the dump box and reintroduce it
properly
Clean the coffee grinder (Pr. “14.1
Jamming of the coffee grinder unit”)
Place the coffee dose in the relative hopper
and restart the cycle
Clean it with a thin needle
Set a finer grinding
Set a coarser grinding
Preheat the cup on the cup warming plate
Wait for the machine to reach the suitable
temperature
Change the coffee blend or check its
grinding (if pre-ground)
Descale the machine
Switch the machine on and off through the
main switch
Manually turn the group onto the standard
position (N), matching the reference mark
placed on the structure with the arrow N
(F. 14)
