La Pavoni CREMONA Mode D'emploi page 33

21 – CAUSES FOR OPERATING FAILURES OR ANOMALIES (TROUBLESHOOTING)
PROBLEM
The machine does not switch on
Water missing the boiler
Coffee not being supplied
The nozzles do not supply steam
Too much water in the boiler
Water leakage on the counter
Wet coffee grounds
Boffee supply is too slow
The coffee supply is too fast
The coffee supplied is cold
The coffee supplied is too hot
CAUSE
1. Mains switched off
2. Defective connection to electric mains
1. Network tap closed
2. Pump filter clogged
3. Motor pump not working
1. Network tap closed
2. Motor pump not working
3. Control unit fuse burnt out
4. Unit solenoid valve not working
5. Unit control not working
1. Too much water in the boiler
2. Damaged heating element
3. Clogged sprayer
4. Heating element protecting thermostat
disconnected
1. The pump motor remains connected
2. Perforated exchanger
3. Automatic filling solenoid valve blocked
1. Drain tray dirty
2. Drain tube clogged or disconnected
3. Other leakage
1. Too fine grinding regulation
2. The unit has not warmed up yet
3. Not unloaded solenoid valve
1. Too fine grinding regulation
2. Dirty filter-holder
3. Clogged unit
4. Partially clogged solenoid valve
1. Too coarse grinding regulation
1. Limestone on the exchangers or on the
heating element
2. Oxidised pressure switch contacts
3. Defective electric connection
4. Heating element partially burnt out
5. Heating element protecting thermostat
disconnected
1. Pressure switch incorrectly set
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SOLUTION
1. Place the main switch on the ON position
2. Refer to qualified staff for connection evaluation
1. Open the network tap
2. Replace filter
3. Refer to qualified staff
1. Open the network tap
2. Refer to qualified staff
3. Refer to qualified staff
4. Refer to qualified staff
5. Refer to qualified staff
1. Refer to specific issue
2. Refer to qualified staff
3. Clean the sprayer
4. Refer to qualified staff
1. Refer to qualified staff
2. Refer to qualified staff
3. Refer to qualified staff
1. Clean drain tray
2. Replace drain tube
3. Refer to qualified staff
1. Regulate grinding
2. Wait for the machine to reach the required tem-
perature level
3. Refer to qualified staff
1. Regulate grinding
2. Replace the filter and clean the filter-holder
more often
3. Refer to qualified staff
4. Refer to qualified staff
1. Regulate grinding
1. Refer to qualified staff
2. Refer to qualified staff
3. Refer to qualified staff
4. Replace heating elemen
5. Refer to qualified staff
1. Regulate pressure switch by means of the screw
provided (cap. 6.1)
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