background image

1.3. Machine composition

If not expressly indicated in the text, the position num-

bers of the machine components refer to figures in the

chapters 1.3.5. External components and 1.3.6 Internal

components.

1.3.1. Models

LB 910 Compact

1.3.2. Identification data

In the plate the following data of the machine are indi-

cated:

- manufacturer;

- machine model;

- serial number;

- product code Lavazza;

- production date;

- power supply voltage (V);

- power supply frequency (Hz);

- power consumption (W);

1.3.3. Overall dimensions and weight

Depth:

  360

mm

Width:

  130

mm

Height:

 235

mm

Weight: 3,6 kg

1.3.4. Technical features

Power supply voltage: 220-240 V

Power supply frequency: 50/60 Hz

Power consumption: 1300 W

Water tank capacity: 1,2 litri

Boiler type: thermoblock

Control of water level: electronic control

Capsule container capacity: 8

1.3.5. External components

1) Capsule loading handle

2) Water tank lid

3) Tank

4) On/off switch

5) Drip / used capsule tray

6) Cup support grid

7) Control panel

1.3.6. Internal components

1) Coffee brewing unit

2) Boiler

3) Flowmeter

4) Pump unit

5) Tank coupling

6) Solenoid valve

Maintenance manual for technical assistance

Manual code 10081945 / Rel. 0.00 / February 2014

2

1

2

3

4

1

2

3

4

5

6

7

5

6

Summary of Contents for Blue LB 910 Compact

Page 1: ...LB 910 Compact MAINTENANCE MANUAL FOR TECHNICAL ASSISTANCE MANUAL CODE 10081945 REL 0 00 FEBRUARY 2014 ...

Page 2: ...B 910 Compact Machine code 10080207 Manual code 10081945 Rel 0 00 Edition 02 2014 Copyright LAVAZZA S p A www absoluteaftersales it Tel 0039 011 2348429 Fax 0039 011 23480466 technicalservice lavazza it ...

Page 3: ...BLY OF COMPONENTS 6 7 1 Disassembling the machine body 6 7 2 Disassembling the hydraulic supply unit 8 7 3 Disassembling the on off switch 9 7 4 Disassembling the micro switch of handle closure 10 7 5 Disassembling the sensor of drawer presence 10 7 6 Disassembling the boiler unit 11 7 7 Disassembling thermal safety and temperature detection systems 11 7 8 Disassembling the coffee brewing unit 12 ...

Page 4: ...u res that if not observed could cause damage to the machine Environment ENVIRONMENT messages are displayed before pro cedures that if not observed could cause damage to the environment NOTE Messages show further information useful for the maintenance technician 1 1 3 Users This manual is designed for technicians qualified to maintain the machine Lavazza is not responsible for damage derived from ...

Page 5: ...ns and weight Depth 360 mm Width 130 mm Height 235 mm Weight 3 6 kg 1 3 4 Technical features Power supply voltage 220 240 V Power supply frequency 50 60 Hz Power consumption 1300 W Water tank capacity 1 2 litri Boiler type thermoblock Control of water level electronic control Capsule container capacity 8 1 3 5 External components 1 Capsule loading handle 2 Water tank lid 3 Tank 4 On off switch 5 D...

Page 6: ...o carry out any type of technical modification not co vered in the normal procedures of diagnosis and re pair In case of fire use carbon dioxide CO2 extinguishers Do not use water or powder extinguishers If an operation or intervention not foreseen should be carried out following a different procedure than that in dicated in the manual please contact Lavazza technical service before starting Struc...

Page 7: ...t should not be treated as a generic household waste but should be delivered to an authorised local recycling centre of WEEE Collecting the components of the machine in properly separated fractions will enable recycling treat ment and environmentally friendly disposal and contri bute to avoiding possible adverse effects on the environment and on health and favours the re use and or re cycling of m...

Page 8: ...mperature 15 C 35 C maximum humidity 60 Warning The machine is not suitable for outdoor installation and should not be exposed to weather Warning The presence of magnetic fields or proximity of elec tric machines which generate disturbances may cause malfunctions in the electronic control of the machine Warning With temperatures approaching 0 C there is the risk of freezing internal parts of the m...

Page 9: ... to the laws regarding occupational health and safety Dispose the used capsules and the liquid contained in the drawer for coffee grounds Wiring mode of electrical connections All the wiring mechanical connections use Faston connectors with a positive lock If there is a Faston cap press on the plastic as indicated in the figure and pull it 7 1 Disassembling the machine body Remove the complete dra...

Page 10: ...n in the fi gure and remove the right hand frame 7 Carry out the same operation for the left had frame Release and remove the cover 8 Unscrew the screw shown on the machine top Unscrew the screw shown on the bottom of the machine and remove the electronic board cover 9 Disconnect the connector from the electronic board as shown in the fi gure Remove the top cover by means of the tab 10 as shown in...

Page 11: ...rew the indicated screw and re move the electronic board 13 7 2 Disassembling the hydraulic supply unit Disconnect the electrical connection 1 pipes 2 and 3 tip and remove the flowmeter 4 Disconnect the pipes 5 6 and 7 removing the fixing clips Disconnect the pipe 8 in the lower part of the pump Disconnect the electrical connections Unscrew the two screws shown in the figure and remove the pump un...

Page 12: ...e spare parts area on the site http ts lavazza it Disconnect the pipe 11 Disconnect the pipe 12 by remo ving the corresponding fixing clip Disconnect the electrical connec tions shown in the figure Remove the solenoid valve 13 7 3 Disassembling the on off switch To remove the on off switch discon nect the electrical connections 1 and press on the clips with a screw driver as shown in the figure D ...

Page 13: ...bling the micro switch of handle closure Use the indicated tabs to remove the micro switch 1 and disconnect the corresponding connector on the electronic board 7 5 Disassembling the sensor of drawer presence Unscrew the screw 1 on both sides remove the bracket 2 and the drawer presence sensor 3 1 1 2 3 A ...

Page 14: ...d 2 to disconnect the temperature probe 3 and thermal fuses 4 Disconnect the four screws 5 and remove the boiler 6 7 7 Disassembling thermal safety and temperature detection systems Disconnect the connection shown in the figure Loosen the screw 1 Turn the clamp 2 Remove the thermal fuses 3 from the protective pipes 4 Disconnect the electrical connec tions 5 Attention When thermal fuses are replace...

Page 15: ...eat conducting paste has been applied between the probe and the boiler 7 8 Disassembling the coffee brewing unit Unscrew the screw 1 on both sides and remove the coffee brewing unit 2 Remove the three circlips shown in the figure micro switch actuator 3 and unscrew the four screws 4 on both sides Remove the capsule support 5 and boiler 6 Unscrew the indicated screw and re move the perforator 7 A 1...

Page 16: ... O Ring 9 Attention During reassembly apply the special grease see interactive spare parts area on the site http ts lavazza it Remove the O Ring 10 Attention During reassembly apply the special grease see interactive spare parts area on the site http ts lavazza it Attention Replace the O Ring 10 only after the sleeve 11 is fitted inside the boiler support Remove the O Ring 12 9 10 12 11 8 ...

Page 17: ...l for technical assistance Manual code 10081945 Rel 0 00 February 2014 14 7 9 Disassembling the electronic board Disconnect the connections un screw the screws shown in the figure and remove the electronic board 1 1 A B ...

Page 18: ...ne to be reset when the hydraulic unit remains mistakenly in forward position ac cidentally for a prolonged shut off in forward position or for another reason Every time the machine is switched on it is possible to run a dispensing cycle by pressing one of the buttons without inserting the capsule 8 2 2 Changing set temperature To modify the set temperature the following operations must be carried...

Page 19: ...the used capsule drawer To perform the general reset function switch the machine off by means of the on off switch open the capsule loading handle Warning iThe used capsule drawer must be inserted press the two dispensing buttons and keep them pres sed turn the machine on after approximately 7 seconds the simultaneous fla shing of the three LEDs indicates that the reset has been completed switch t...

Page 20: ...ed button in the example the button 1 alternated to the red LED flash four times LEDs 1 and 3 come ON again to indicate that the machine is ready Reset completed with LED 2 and 3 steady on during 2 seconds LEDs 1 and 2 flash alternately Lack of water is detected by the machine during dispensing and notified by LED 2 flashing After filling the tank proceed as described in PREPARING COFFEE By keepin...

Page 21: ...k 1250 W 230V 50Hz Faston earth connector 2 way SV NC 230V 50 Hz 13 5 VA Vibration pump 20 bar GW 220 240 V 50 Hz Thermal fuses Tf 167 16A 250 V Control panel board Fuse 6 3 A 250 V Bipolar switch 6 3 250 V Power board 220 240 V 50 60 Hz Flowmeter Power cord Lever micro switch Drawer presence sensor Temperature probe Thermal protector ...

Page 22: ...9 Manual code 10081945 Rel 0 00 February 2014 9 2 Hydraulic diagram Brewing Opening valve 8 5 1 bar One way valve Vibration pump 20 bar GW Tank coupling Flowmeter Hole diameter 1 mm Min rate flow 0 05 l min Max flow rate 0 4 l min Fitting y shaped ...

Page 23: ... composed of a dummy capsule A and a discharge hose B is necessary to carry out the de scaling cycle Note The kit can be ordered in the interactive spare parts area of the site ts lavazza it Descaling operations Switch the machine off by means of the on off switch Empty the tank and used capsule drawer Fill the tank with water and descaling product Note For correct quantity of the descaling produc...

Page 24: ...inished re move and carefully clean the tank Completely fill the tank with fresh drinking not spar kling water mount it on the machine again and press the button 1 or 3 to start the rinse cycle Note The estimated time for the rinse cycle is approxima tely 8 minutes Warning The rinse cycle provide the circulation of approxi mately 2 litres of water into the hydraulic circuit The tank must be filled...

Page 25: ...nic board The capsule loading handle does not The drip used capsule drawer is full Empty the drip used capsule drawer The capsule is not correctly inserted Lift the capsule loading handle and in sert the capsule correctly The pump doesn t start There is no water in the tank Fill the tank with fresh drinking not sparkling water The machine does not dispense coffee The capsule is not inserted Insert...

Page 26: ... already been used was inserted Insert a new capsule Coffee is too hot The thermal probe does not work correc tly Replace the thermal probe Apply the heat conducting paste bet ween the thermal probe and the boi ler The electronic board is damaged Replace the electronic board Coffee is cold The thermal probe does not work correc tly Replace the thermal probe Apply the heat conducting paste bet ween...

Reviews: