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Service Manual EF 472

35

F U N C T I O N T E S T S

12) Check all connections under pressure

for audible and visible leaks.

Do not run the pump for more
than 50 sec. with the valve
closed.

13) Switch off the coffee machine.
14) Open the valve and let water flow out

of the pressure tester.

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Содержание EF 472

Страница 1: ...S E R V I C E M A N U A L C O F F E E M A C H I N E Le Cube EF 472 Version 1 0 en...

Страница 2: ...14 5 Repairs 16 5 1 Tools and accessories 16 5 2 General disassembly 16 5 3 Replacing the compact brewing unit 22 5 4 Replacing the thermoblock NTC temperature sensor and fine wire fuse s 23 5 5 Repla...

Страница 3: ...readiness of the machine and in order to upkeep the full advantages of all the func tions it is absolutely necessary to follow the instructions in this service manual The required utility software to...

Страница 4: ...Service Manual EF 472 4 S T R U C T U R E 2 S T R U C T U R E 2 1 Overview of the rating plates This overview shows examples of various brands and is not complete...

Страница 5: ...Brand name 2 Voltage and power rating 3 Place of manufacture 4 Conform with RoHS guidelines lead free solder etc 5 Barcode 6 Serial number 7 Machine type 8 Special disposal icon do not dispose with or...

Страница 6: ...p button back lighted 8 Large cup button back lighted 9 Coffee outlet 10 Capsule container 11 Light guide to the capsule container 12 Cup tray foldable 13 Drip tray 14 Thermoblock TB 2003 15 Mainboard...

Страница 7: ...Service Manual EF 472 7 S T R U C T U R E 2 3 Water circuit 1 Water tank 2 Water tank valve and connector 3 Flow meter 4 Pump 5 Thermoblock 6 Compact Brewing Unit CBU 7 Coffee outlet...

Страница 8: ...cup warmer approx 13 Wh with cup warmer approx 20 Wh Default settings version dependent machine function Pump Pump pressure Max permissible 17 5 bar 1 5 bar During coffee preparation depending on the...

Страница 9: ...hine is switched on and has heated up 1 Press the Large cup button The pump starts to work 2 Open the closing handle push it back wards to the stop and hold it in this position for approximately 3 sec...

Страница 10: ...se the handle and press it down all the way 4 Place a cup under the coffee outlet 5 Press the Small cup or Large cup button Coffee preparation starts and stops automatically Should the cup start to ov...

Страница 11: ...10ml 1 Prepare coffee as usual see Making a cup of coffee on page 10 but keep the coffee button pressed for at least three seconds in order to start programming mode 2 Only release the button when the...

Страница 12: ...the coffee machine 2 Pull out or remove the water tank 3 Place a beaker under the coffee out let 4 Press and hold the Small cup button 5 Switch the coffee machine on again 6 Release the Small cup butt...

Страница 13: ...bols for On Off switch Small cup button Large cup button Illumination off Illumination on Normal blinking Fast blinking Irregular blinking Status Error On Off switch Small cup button Large cup button...

Страница 14: ...impossible to close the handle and to press it all the way down YES replace the compact brewing unit 2 3 The capsule is ejected correctly YES continue with point2 4 NO replace compact brewing unit 2 4...

Страница 15: ...chine see Descaling on page 37 NO continue with point 5 2 5 2 Temperature is too low below 83 C YES Descale coffee machine see Descaling on page 37 NO continue with point 5 3 5 3 Temperature too high...

Страница 16: ...described can be made 5 2 General disassembly General disassembly gives access to the important machine components is required for the following repair instructions Depending on the repair done the m...

Страница 17: ...e outlet Should any problems occur then the coffee outlet can be disassembled as follows see previous illustration Press the coffee outlet downwards until on the left side of the gap in the front pane...

Страница 18: ...4 on the rear panel Press the locking latch d down ward with the tip of the screwdriver and remove the rear panel 6 Remove both cup covers 17 7 Remove the left 20 and right covers 36 Carefully press t...

Страница 19: ...manually 12 Remove the cup tray or heating plate 42 depends on machine type If removing heating plate loosen the screw 3 of the grounding connection first Push the tray or heating plate backwards unti...

Страница 20: ...e compact brewing unit has been removed see Replacing the compact brewing unit on page 22 Replacing the flow meter on page 26 For all other repair works the support 13 of the compact brewing unit must...

Страница 21: ...heating plate depends on machine type Check if the two heat conductor disks 60 adhere to the heating plate 42 on the correct positions When assembling make sure that the heating plate 42 with the hea...

Страница 22: ...replace the coffee tap 24 the O ring 46 on the thermoblock hose connection The spare compact brewing unit 58 is used in the EF 470 and EF 471 coffee machines has therefore a longer axes protruding fr...

Страница 23: ...g from the main board Tighten the new NTC temperature sensor 6 and spring ring 7 with a torque wrench 90 110 Ncm Repair tips for the fine wire fuse s When mounting the safety clips 4 make sure that th...

Страница 24: ...support Remove the fluid systems support 11 from the floor 32 insert the tip of the screwdriver into the slits in the housing base and press and locking latches to one side Simultaneously lift the sup...

Страница 25: ...ew pump the angled hose connection 44 may have to be realigned the white plastic Iid on the pump is rotatable and has two flat surfaces onto which the flat wrench can be placed Mounting tip for the th...

Страница 26: ...Service Manual EF 472 26 R E P A I R S 5 6 Replacing the flow meter Repair tip for flow meters Pull the flow meter 41 firmly upwards to remove it...

Страница 27: ...sition of the spring 14 A label on the housing of the mainboard 35 contains specifications on the hard ware and software version After assembly check the plug arrangement of the mainboard see Wiring d...

Страница 28: ...ce screwdriver tip from below into the switch housing and force the switch out 62 The on off switch 62 has no markings for the connections Check its switch func tions and wiring with a digital multime...

Страница 29: ...diagrams Diagrams for 230 V EU first series Diagrams for 230 V EU valid as of 01 01 2007 1 Print for button On off 2 On Off switch 3 Heating plate 4 Thermoblock 230 V 5 Pump 230 V 6 Flow meter 7 Mainb...

Страница 30: ...nual EF 472 30 R E P A I R S Diagram for 120 V UL 1 Print for button On off 2 On Off switch 3 Heating plate 4 Thermoblock 120 V 5 Pump 120 V 6 Flow meter 7 Mainboard 120 V 8 Print for buttons Coffee s...

Страница 31: ...gram for 100 V Japan first series Wiring diagram for 100 V Japan valid as of 01 01 2007 1 Print for button On off 2 On Off switch 3 Heating plate 4 Thermoblock 100 V 5 Pump 100 V 6 Flow meter 7 Mainbo...

Страница 32: ...7 After heating up press the Small cup button 8 Open the valve until water begins to flow 9 Close the valve until the pressure gauge indicates 12 bar Constantly monitor the pressure gauge and if requi...

Страница 33: ...hot parts under pressure inside the coffee machine Do not touch any parts under voltage and or hot while checking for leak ages Always wear protective goggles 1 Remove rear and side panels the pump b...

Страница 34: ...ne 9 After heating up press the Small cup button 10 Open the valve and let the water flow for approximately 10 sec out of the drain hose 11 Close the valve completely The pres sure stabilizes after in...

Страница 35: ...T E S T S 12 Check all connections under pressure for audible and visible leaks Do not run the pump for more than 50 sec with the valve closed 13 Switch off the coffee machine 14 Open the valve and l...

Страница 36: ...he heating up period press the Small cup button and preheat the coffee outlet for approximately 10 sec with hot water 4 Insert capsule Cosi is best suited 5 Press the Small cup button 6 Wait until the...

Страница 37: ...nd capsule container and empty them 4 Reinsert the drip tray and place a beaker on the cup support Observe the safety instructions on the package of the decalcifier 5 Fill the watert tank with 0 1 l d...

Страница 38: ...n through the system again 12 Empty the beaker 13 Remove the filter from the capsule bay 14 Thoroughly rinse the water tank and fill it with fresh water 15 Place the beaker on the cup support 16 Press...

Страница 39: ...Empty the capsule container 3 Empty the water tank and the drip tray 4 Clean the water tank and the drip tray 5 Fill the tank with fresh water 6 Reassemble the coffee machine 7 Press the On Off butto...

Страница 40: ...Service Manual EF 472 40 S P A R E P A R T S 8 S P A R E P A R T S...

Страница 41: ...ver 472 rot print Nespresso 46866 Front cover 472 alu titan print Nespresso 46865 Front cover 472 white print Krups 30 46845 Front cover 472 alu titan print Krups 46849 Front cover 472 weiss print Tur...

Страница 42: ...Thermoblock compact brewing unit 55 16052 Raised head screw KST PT 3x12 Torx 10 56 43257 Closing handle high gloss chrome plated 57 43253 Upper cover 58 47185 Compact brewing unit without closing han...

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