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LAVAZZA blue LB 400 CLASSY PLUS, Maintenance Manual

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LAVAZZA blue LB 400 CLASSY PLUS Maintenance Manual Download Page 44

Technical support maintenance manual

Rel. 0.00 / February 2020

40

13.2. HYDRAULIC DIAGRAM

Key

Machine components

1

Drip tray

2

Milk frother inlet Assy

3

Cappuccino maker Assy

4

3-way solenoid valve

5

2-way solenoid valve

6

Dispensing valve

7

Capsule

8

Thermoblock

9

Pump

10

Volumetric doser

11

Tank

1

1

4

2

3

5

6

7

8

9

10

11

1

Summary of Contents for blue LB 400 CLASSY PLUS

Page 1: ...LB 400 CLASSY PLUS USA 120V TECHNICAL SUPPORT MAINTENANCE MANUAL ...

Page 2: ...18000339 Rel 0 00 Edition 02 2020 Copyright LAVAZZA S p A To request technical support contact TECHNICAL SERVICE LAVAZZA sending an e mail to technicalservice lavazza com phoning n 39 011 2398429 or consulting the website https ts lavazza com ...

Page 3: ...s 10 7 ROUTINE MAINTENANCE 10 7 1 DESCALING 10 7 2 CLEANING 11 7 3 LUBRICATION 13 8 TROUBLESHOOTING 14 8 1 INDICATION AND SOLUTION OF MOST COMMON PROBLEMS 14 9 RECOMMENDED TOOLS FOR DISASSEMBLY AND ASSEMBLY OPERATIONS 17 10 GENERAL OPERATIONS 18 10 1 DISCONNECTING ELECTRIC WIRING 18 10 2 REMOVAL OF HYDRAULIC CONNECTIONS 19 11 DISASSEMBLING THE BODY 21 11 1 EXTRACTING THE DRIP TRAY USED CAPSULE TRA...

Page 4: ...Page left intentionally blank ...

Page 5: ... Service website 1 1 2 MESSAGES USED Attention ATTENTION messages indicate even high risk danger for the technician The operations described after this message must be carried out with the utmost attention and in maximum safety using personal protective equipment Warning WARNING messages are displayed before procedures which could cause damage to the machine if not complied with Environment ENVIRO...

Page 6: ...is prohibited to use the machine in the vicinity of flammable and or explosive substances and or in a fire risk atmosphere use non original spare parts make any type of technical modifications of the ma chine not included in the standard diagnostic and re pair procedures In case of fire use carbon dioxide CO2 fire extinguish ers Do not use water or powder extinguishers If you must perform an unint...

Page 7: ...symbol of the crossed out wheeled bin ap plied to the appliance and or packaging indi cates that at the end of its useful life the prod uct must be collected separately from other waste At the end of its life the user must hand over the appliance to suitable facilities for the separate collection of electric and electronic waste Appropriate waste collection of the appliance and hand ing it over fo...

Page 8: ...h 5 7 in 145 mm Height 11 in 280 mm Weight 9 9 lb 4 5 kg 5 1 3 TECHNICAL FEATURES Power supply voltage 120 V Power supply frequency 60 Hz Installed power 1250 W Water tank capacity 37 1 US fl oz 1 1 L Boiler type THERMOBLOCK Water presence check Via the VOLUMETRIC DOSER Used capsules container capacity 8 Power saving function After 4 hours of inactivity Dosage Programmable ESPRESSO LUNGO COFFEE 8 ...

Page 9: ... maker Assy milk frother jug and cover 6 Cup milk frothing jug rest grid 7 Drip tray 8 Used capsule tray 9 Tank lid 10 Water tank 11 Power cable 5 2 2 INTERNAL COMPONENTS MACHINE FRONT 1 Milk frother support Assy MACHINE BACK 2 Dispensing unit with integrated Thermoblock 3 2 and 3 way solenoid valve unit 4 Water tank inlet 5 Pump 6 Volumetric doser 1 9 4 2 3 5 6 10 11 8 7 1 2 5 6 3 4 ...

Page 10: ...ing separate waste collection and disposal 6 2 POSITIONING For correct ergonomic use it is recommended to install the machine on a flat horizontal and stable surface away from water flames and sources of heat The cho sen area must be sufficiently lit ventilated hygienic non corrosive and or non explosive Furthermore the socket must be easily reached by the power cable The following recommendations...

Page 11: ...y clean the Cappuccino Maker Assy Remove the cover and fill the milk frothing jug ref 5 par 5 2 1 with water up to the LATTE level Put the cover back on and slide the Assy into the ma chine Press the LATTE button ref 10 par 5 3 to start the cleaning cycle Once the cycle has finished remove the Cappuccino Maker Assy and wash all the parts with hot cold water After having dried the parts beverages c...

Page 12: ... STATE Machine ready without Milk frothing jug Delivering ESPRESSO Delivering LUNGO Delivering COFFEE 8 OZ Delivering DOUBLE SHOT only ESPRESSO supply Programming ESPRESSO measure After pressing for 3 sec Programming LUNGO measure After pressing for 3 sec Machine ready with Milk frothing jug ...

Page 13: ...NE STATE Delivering MACCHIATO Delivering CAPPUCCINO Delivering LATTE Delivering DOUBLE SHOT Ex Cappuccino delivery No water in circuit or water tank removed Full capsule drawer filled Descaling required Example OFF ON Flashing Orange lights Orange lights Orange lights ...

Page 14: ...e procedure the programming process will not be successful and the last set dose remains saved 6 4 1 RESETTING THE DEFAULT VALUES Reset the default settings as follows the machine must be connected to the electrical mains and in Stand by mode the used capsule drawer must NOT be inserted the Cappuccino Maker Assy must NOT be inserted press the ESPRESSO 1 LUNGO 2 and DOUBLE SHOT 11 buttons simultane...

Page 15: ... the tank again Once rinsed the machine beeps and runs the warm up cycle to return to the ready to use mode Warning Once started the cycle must be completed Note We recommend using LAVAZZA DESCALING products to descale the machine Attention Do not descale the machine with vinegar 7 2 CLEANING Attention Before cleaning the machine make sure it is un plugged and wait for it to cool off For correct a...

Page 16: ...Warning When the machine is used intensively perform the cleaning operations more frequently Note If the machine is not used for more than three days empty the tank and fill it with fresh water Then run a dispensing cycle with no capsule before dispensing beverages ...

Page 17: ...BLOCK CONNECTION 2 Recommended product BE SLUX CAPLEX M 2 ATOX Bru garolas Grease Figure B apply grease in the groove of the cranks 3 Recommended product GRAS SO BESLUX CAPLEX M 2 ATOX Brugarolas Grease Also apply a little grease on the rods 4 and on the infusion cham ber 5 in the highlighted points Recommended product FOOD SPRAY Nils Note With regards to the recommended products you may wish to c...

Page 18: ...f the machine Fit the movable parts properly Top up the tank with fresh drinking wa ter Insert a Lavazza Blue or Expert capsule or a compatible one Unit ready for use but failing to ac knowledge the button press Wrong button press activation Used capsule collection tray not fitted Press one of the illuminated buttons with your fingertip then check for the acoustic signal if activated and the prope...

Page 19: ...limescale Perform the descaling procedure by means of the Lavazza descaling product The machine emits no sound Acoustic signal OFF Set the machine to the stand by mode then simultaneously keep the ES PRESSO and MACCHIATO coffee buttons depressed over at least 2 seconds Coffee flows out slowly drop by drop Capsule not compatible An inadequate pod has been used Supplying device clogged Hydraulic cir...

Page 20: ...arged Early removal of the milk jug Insert a coffee capsule and prepare the new desired beverage by eliminat ing the previous one Discharge the used capsule insert a new one and prepare the new desired beverage by eliminating the previous one Wait for the acoustic signal at the end of preparing the selected beverage Milk spilling out of the jug Milk jug broken Excessive milk jug filling above the ...

Page 21: ...OPERATIONS A G 12 mm hexagonal spanner Standard pliers B H Phillips screwdriver PZ1 Clippers C I T10 Torx Screwdriver Scissors D L T20 Torx Screwdriver Opening tool E M Flat headed screwdriver 0 5x3 Pliers for faston F N Long nose pliers OETIKER pliers Note Use thermal grease when replacing the THERMOBLOCK PROBE ...

Page 22: ...s the machine must be turned over in order to disassem ble the body and to remove the internal components Therefore place the device in an accessible position to operate with ease Note To reassemble the various components perform the operations provided in the following paragraphs in the opposite order 10 1 DISCONNECTING ELECTRIC WIRING This paragraph describes all the types of disconnection of th...

Page 23: ...m off Warning Use only new terminals during replacement cycles so as to preserve electrical safety of the appliance 10 2 REMOVAL OF HYDRAULIC CONNECTIONS This paragraph describes all the types of disconnection of the hydraulic pipes on the machine Figure A remove the type of hydraulic pipe shown in the figure by pulling the pipe outwards to di sconnect it from the fitting Warning Do not use screwd...

Page 24: ...ulic pipe passages must not be altered Any clamps must be removed during disassembly and restored during reassembly operations Note Recover the gaskets 3 and insert them in the pipes as shown in figure C Replace the gaskets if worn Figure D remove the high pres sure pipe by cutting the clamps with CLIPPERS When reassembling set the pipe of the new clamps in place and tighten them using OETIKER pli...

Page 25: ...ve the DRIP TRAY USED CAPSULE TRAY Figure B pull the WATER TANK ASSY upwards to extract it from its seat 11 2 DISASSEMBLING THE SIDE PANELS AND THE TOP COVER Figure A remove the two HANDLE CAPS of the capsule lo ading lever one on each side Figure B unscrew the two un derlying HANDLE SCREWS one on each side and remove the capsule loading lever Note While reassembling tighten the screws with a torq...

Page 26: ...SPACERS one on each side Figure D set the machine ho rizontally and unscrew the four screws on the base Note While reassembling tighten the screws with a torque of 0 6 0 1 Nm Set the machine upright again Figure E remove the external side panels first the left and then the right C F D B E L ...

Page 27: ...p of a tool Figure G disengage the small in terlocking teeth found in the rear part of the appliance from top to bottom while using the LEFT PA NEL as lever with your hand Figure H place the machine on the right side and disengage the three mounting slots on the base Figure I pull the LEFT PANEL forward and remove it F B L G L H E I ...

Page 28: ...gures G H I for the RIGHT PANEL Figure L unplug the USER IN TERFACE connector slide the cable out and completely remove the top cover 11 3 EXTRACTING THE USER INTERFACE Figure A use your fingers to un latch the 4 locking points shown and slide out the frame Figure B remove the user inter face L A B L ...

Page 29: ...ILICONE PIPE 2 and the black piping 3 Figure B press the two lower in terlocking levers to lift and remove the VOLUMETRIC DOSER 12 2 EXTRACTING THE WATER TANK INLET Figure A disconnect the black connection pipe with the volume tric doser and extract the WATER TANK INLET component by pul ling it upwards 12 3 REMOVING THE MILK FROTHER SUPPORT ASSY Figure A extract the wires of the MILK FROTHER SUPPO...

Page 30: ...isconnect the wires of the CAPSULE TRAY MILK FROTHER PRESENCE MI CROSWITCH ASSY Figure C remove the SILICONE COFFEE OUTPUT PIPE found next to the MILK FROTHER SUP PORT ASSY Figure D remove the indicated FORK and the relevant TEFLON PIPE from the solenoid valve unit B C E D F ...

Page 31: ...ESENCE microswitch 1 by lifting it upwards and use the indicated tooth as a lever Facilitate the removal by lightly pinching the activation plate 2 so as to disengage it from its seat Warning While disassembling and reassembling pay particular attention not to deform the activation plate Figure G remove the indicated TEFLON PIPE after having remo ved the FORK Figure H rotate the MILK FRO THER INLE...

Page 32: ...he PIPE Warning Be careful not to tear the pipe While reassembling the CLAMP must be replaced and tightened with the OETIKER PLIERS Figure B disconnect the PUMP THERMAL PROTECTION 1 and the two electrical connections in dicated 2 Figure C remove the EP5GW EVO 230V PIPE from the top bra cket 3 and extract it from the machine while also removing the LOWER BRACKET 4 Then remove the LOWER BRA CKET and...

Page 33: ...ure on the buffer 8 as shown in figure E Check that the component is in full contact with the pump and that it is positioned correctly the side fixing point 9 should be opposite to the insertion point of the electrical connections 10 Note When reintroducing the pump into the machine make sure to fit the BOTTOM SUPPORT into the guides of the body and reposition the fixing pin 11 in the hole 12 adja...

Page 34: ...f the hydraulic connections Remove the three corresponding TEFLON PIPES and the two SILI CONE PIPES 1 placed at the top of the solenoid valve unit Figure B disconnect the six wi rings Warning Take note of the positioning of the wirings before disconnecting them Figure C widen the two lateral securing levers to extract the SO LENOID VALVE UNIT ASSY A 1 1 F B C ...

Page 35: ...ing of the wirings before disconnec ting them 12 7 REMOVING THE CAPSULE TRAY MILK FROTHER PRESENCE MICROSWITCH ASSY The Assy consists of two microswitches which respectively indicate the presence of the cappuccino maker Assy and the capsule tray Figure A disconnect the wiring connection with the CPU BOARD to extract the CAPSULE TRAY PRESENCE microswitch while using the lower tooth shown as a lever...

Page 36: ...n adequate amount of grease to the contact point with the thermoblock Note While reassembling tighten the screws with a torque of 2 0 1 Nm 12 9 REMOVING THE THERMOBLOCK AND DISPENSING UNIT Warning Wait for the boiler to cool off before performing these operations DANGER OF BURNS Figure A unscrew the four fixing screws of the DISPENSING UNIT two on each side Note While reassembling tighten the scre...

Page 37: ...hermal fuses 3 from their seat Note While reassembling tighten the screws with a torque of 2 0 1 Nm Figure C set the machine hori zontally and disconnect the three hydraulic connections shown re lative to the PUMP and the 2 and 3 WAY SOLENOID VALVE ASSY as described in chapters 12 4 and 12 5 Figure D reposition the machine upright and remove the two ther moblock power cables from the CPU BOARD B 1...

Page 38: ...NIT 12 9 1 DISASSEMBLING THE THERMOBLOCK Figure A unscrew the fixing screws of the thermoblock one on each side and extract the compo nent Note While reassembling tighten the screws with a torque of 2 0 1 Nm Figure B remove the high pres sure SILICONE PIPE after having cut the fixing CLAMP Warning Be careful not to tear the pipe While reassembling the CLAMP must be replaced and tightened with the ...

Page 39: ...OBLOCK PROBE and apply fresh grease before setting the PROBE back in place Figure D remove the THER MOBLOCK CONNECTION 2 in the dispensing unit by extracting the retaining fork 3 removing the hydraulic connection 4 and unscrewing the THERMOBLOCK CONNECTION by rotating it anti clockwise Warning If the THERMOBLOCK CONNECTION is to be replaced also replace the O RING 11X1 9 5 and if necessary the RUB...

Page 40: ... and the rods 2 by extracting the Seeger rings on each side two external and one internal Figure B remove the infusion chamber Unscrew the three fixing screws of the CAPSULE TOP PIERCING SUPPORT 3 in order to extract it Figure C remove the four bolts of the DISPENSING UNIT slightly tilt the component and remove it A 1 2 E B 3 C C D ...

Page 41: ...he central hole of the plate for the PIERCING TIPS to come out Then unscrew the two screws shown Figure E the PIERCING PLATE automatically rises pushed by the underlying spring and can be ea sily extracted Figure F remove the LIP SEAL of the plate Warning Replace the SEAL and lubricate it Take care to set it back on the plate correctly D 4 D C E F E ...

Page 42: ...gure G from the back of the plate use the three levers indica ted to extract the support of the piercing tips 5 Lastly unscrew the two screws shown and remove the PIERCING TIPS 6 Attention Handle the PIERCING TIPS with care so as to avoid injuring yourself 5 G 6 E C ...

Page 43: ...oswitch 3 Power cable 4 Faston 5 Thermoblock thermal fuse phase 6 Thermoblock thermal fuse neutral 7 Thermoblock 8 Pump 9 Pump thermal protector 10 2 and 3 way solenoid valve unit 11 Thermoblock probe 12 USB port to update Firmware 13 User interface 14 Milk frother motor 15 Milk frother presence microswitch 16 CPU board 11 13 1 3 2 12 10 4 4 5 6 4 4 15 16 14 9 8 7 ...

Page 44: ...40 13 2 HYDRAULIC DIAGRAM Key Machine components 1 Drip tray 2 Milk frother inlet Assy 3 Cappuccino maker Assy 4 3 way solenoid valve 5 2 way solenoid valve 6 Dispensing valve 7 Capsule 8 Thermoblock 9 Pump 10 Volumetric doser 11 Tank 1 1 4 2 3 5 6 7 8 9 10 11 1 ...

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