PROBLEM
CAUSE
SOLUTION
Unacceptable coffee dispensing.
The coffee dose is not met.
The LED of the dose key fla-
shes.
The connection of the flowmeter is de-
fective.
Check for proper connection of the
flowmeter.
The connection of the electronic control
unit is defective.
Check for proper connection of the 8-
pin connector of the electronic control
unit.
The connector of the flowmeter has hu-
midity on it.
Remove the connector of the flow-
meter and dry the contacts.
The flowmeter is defective: during bre-
wing the flowmeter LED does not flash.
Replace the heads of the flowmeter
or the whole flowmeter.
The one-way valve loses pressure (the
dose is too small).
Check and replace the one-way
valve, if necessary.
The discharge valves lose pressure (the
dose is too small).
Check and replace the discharge val-
ves.
Water leakage from the unit solenoid
valve during coffee brewing or when at
resting position.
Clean and replace the solenoid valve,
if necessary.
The flowmeter is partially clogged.
Clean or replace the flowmeter.
The LEDs of the keyboard flash.
After a few minutes the automa-
tic filling of water stops.
Time-out device is activated.
Turn the machine off and then back
on.
No water in mains.
Open the water mains tap.
Some of the pipes in the circuit are clog-
ged.
Check and replace the defective
pipes.
The probe and/or the earth are discon-
nected.
Check and restore the connections.
Shut down of the electronic sy-
stem.
The control unit fuse is burnt out.
Replace the main fuse (125 mA).
The flowmeter has a contact between the
positive pole and the earth.
Check the connection of the flowme-
ter.
Manual code 10066574 / Rel. 2.00 / February 2012
25
Maintenance manual for technical assistance
