La Pavoni 2 GR BAR, Operating Instructions Manual

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34
English
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17 – CAUSES FOR OPERATING FAILURES OR ANOMALIES (TROUBLESHOOTING)
PROBLEM CAUSE SOLUTION
The machine does not switch on 1. Mains switched off
2. Machine selector off
3. Defective connection to electric mains
1. Place the main switch on the ON position
2. Place the machine selector on the
position
3. Refer to qualified staff for connection evaluation
Water missing the boiler 1. Network tap closed
2. Pump filter clogged
3. Motor pump not working
1. Open the network tap
2. Replace filter
3. Refer to qualified staff
Coffee not being supplied 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. Open the network tap
2. Refer to qualified staff
3. Refer to qualified staff
4. Refer to qualified staff
5. Refer to qualified staff
The nozzles do not supply steam
1. Too much water in the boiler
2. Damaged heating element
3. Clogged sprayer
4. Heating element protecting thermostat
disconnected
1. Refer to specific issue
2. Refer to qualified staff
3. Clean the sprayer
4. Refer to qualified staff
Too much water in the boiler
1. The pump motor remains connected
2. Perforated exchanger
3. Automatic filling solenoid valve blocked
1. Refer to qualified staff
2. Refer to qualified staff
3. Refer to qualified staff
Water leakage on the counter
1. Drain tray dirty
2. Drain tube clogged or disconnected
3. Other leakage
1. Clean drain tray
2. Replace drain tube
3. Refer to qualified staff
Wet coffee grounds
1. Too fine grinding regulation
2. The unit has not warmed up yet
3. Not unloaded solenoid valve
1. Regulate grinding
2. Wait for the machine to reach the required tem-
perature level
3. Refer to qualified staff
Boffee supply is too slow 1. Too fine grinding regulation
2. Dirty filter-holder
3. Clogged unit
4. Partially clogged solenoid valve
1. Regulate grinding
2. Replace the filter and clean the filter-holder
more often
3. Refer to qualified staff
4. Refer to qualified staff
The coffee supply is too fast 1. Too coarse grinding regulation 1. Regulate grinding
The coffee supplied is cold 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. Refer to qualified staff
2. Refer to qualified staff
3. Refer to qualified staff
4. Replace heating elemen
5. Refer to qualified staff
The coffee supplied is too hot
1. Pressure switch incorrectly set 1. Regulate pressure switch by means of the screw
provided (cap. 6.1)
LP_MU_383024_Bar-Hotel-BarHard-HotelHard-BarRevolution-HotelRevolution_INT.indd 35 30/06/11 09.24