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PROBLEM
14
A whistling noise is heard
after coffee has been de-
livered
15
The filter cup detaches
itself while coffee is being
delivered
16
While coffee is being de-
livered, some spills out,
dripping from the edge of
the filter cup
17
Water leaking from the unit
solenoid valve discharge
18
Water dripping from the
tea tap
19
Light coloured cream (the
coffee comes out of the
spout fast)
20
Dark coloured cream (the
coffee drips out of the
spout)
21
Coffee grounds in the cup
22
Coffee with little cream (comes
out of the spout in spurts)
23
Coffee dripping over edge
of filter cup
24
Depressions in the coffee
grounds in the filter cup
25
Cream does not last long
All manuals and user guides at all-guides.com
F O R T H E U S E R
CAUSE
• Malfunction of the expansion
valve
• Pump pressure too high
• Faulty seal under the filter cup
• Poor seal between the filter cup
seal and the filter cup
• Malfunction of the solenoid valve
• For machines with temperature
stabilisation, poor seal between
the cooling tube and its O-ring
• Tap washer worn
• If manual tap, the adjusting
screw needs adjusting
• If electronic dispensing, solenoid
valve leaking
• Coffee ground too coarse
• Weak pressing
• Insufficient batch
• Water temperature below 90°C
• Pump pressure higher than 9 bar
• Sprinklers blocked
• Filter holes enlarged
• Coffee ground too fine
• Excessive pressing
• Batch too large
• Water temperature higher than
90°C
• Pump pressure less than 9 bar
• Sprinklers blocked
• Filter and filter holder clogged
• Coffee ground too finely
• Grinders worn
• Pump pressure higher than 9 bar
• Filter holes enlarged
• Sprinklers blocked
• Filter cup holes blocked
• Filter cup delivery hole blocked
• Poor sealing of the filter cup seal
• Sprinklers partially blocked
• Prolonged extraction due to
blocked filter
• Fast extraction due to blocked
sprinklers
• Water temperature too high
SOLUTION
• Replace the seal and the spring in the valve and reset it to
12 bar
• Reset the pump
• Replace the seal and carefully clean the seats of the three
attaching points on the filter cup and unit by inserting and
detaching the filter cup several times, cleaning it each time
• Filter cup seal worn: replace it
• Filters flattened by tapping on hard surfaces: replace
• Check that the solenoid valve piston is free to move correct-
ly inside the rod and that there are no impurities present:
clean or replace
• Check the O-ring inside the cooling chamber and replace if
necessary
• As for the steam tap
• Check the solenoid valve and replace if necessary
• Grind coffee finer
• Increase the pressing force
• Increase the batch dispensed
• Increase boiler pressure
• Reduce pump pressure
• Check and clean with blind filter
• Check and replace
• Grind coffee coarser
• Reduce the pressing force
• Reduce the batch amounts
• Reduce boiler pressure
• Increase pump pressure
• Check and clean with blind filter
• Check and clean
• Grind more coarsely
• Replace the grinders
• Reduce pump pressure
• Check or replace
• Clean or replace
• Clean
• Clean
• Replace
• Clean or replace and check filters with relevant dose
• Clean or replace the filter
• Clean or replace the sprinklers
• Reduce the boiler pressure
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