Nespresso Essenza EF 470 Service Manual
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Nespresso Essenza EF 470 Service Manual

Nespresso Essenza EF 470 Service Manual

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Service Manual Coffee Machine
EF 470
EF 471
Essenza

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Summary of Contents for Nespresso Essenza EF 470

  • Page 1 Service Manual Coffee Machine EF 470 EF 471 Essenza...

  • Page 2: Table Of Contents

    Contents Preface Electronic control board, wiring diagram - _____________________________ 3 Japan (100 V / 50-60 Hz) _____________ 23 Main Components __________________ 4 Descaling (1) _______________________ 24 Overview Descaling (2) ___________________________ 4 _______________________ 25 Overview of rating plates Measuring flow rate ______________ 5 _________________ 26 Water circuit...

  • Page 3: Preface

    Preface The purpose of this Service Manual is to provide the service personnel with all necessary information with regards to correct handling, maintenance and repair of the coffee machines EF 470 and EF 471. This manual should be used by the technicians as a valuable aid to guarantee the permanent readiness for use of the machine.

  • Page 4: Main Components

    Main Components Overview 1) Closing handle 2) Cover 3) Compact brewing unit (CBU) 4) Capsule inlet 5) Side panel 6) On/Off button 7) Coffee outlet 8) Coffee button, back lighted 9) Container for used capsules 10) Drip grid 11) Drip tray 12) Lower chassis 13) Thermoblock TB 2003 14) Electronic control board...

  • Page 5: Overview Of Rating Plates

    Main Components Overview of rating plates The rating plate Type C90 NESPRESSO MAGIMIX M100 can be found at the underside of the coffee HOUSEHOLD COFFEE MAKER ref 11238 machine, 120V 1260W may be of varying design, depending on 220-240V 1260W...

  • Page 6: Water Circuit

    Main Components Water circuit 1) Water tank 2) Water tank valve and connector 3) Pump 4) Thermoblock 5) Compact brewing unit (CBU) 6) Coffee outlet Service Manual EF 470 / EF 471 Version 1.1...

  • Page 7: Technical Data

    Main Components Technical data Mains Power consumption 230V / 50 Hz (at all voltages and frequencies) USA /CAN 120 V / 60 Hz Thermoblock 1’200 W EF 470 100 V / 50-60 Hz Pump 60 W Approvals SEV, CENELEC, CE-conform, UL, CUL, MITI Ratings Preheating...

  • Page 8: Operation

    Operation Preparation 1. Fill tank with water. 2. Insert water tank in coffee machine. 3. Switch on machine by pressing the On/Off button. 4. Position receptacle with a capacity of min.100 ml under coffee outlet. Do not insert a capsule yet. 5.

  • Page 9: Fill Water System

    Operation Fill water system If the coffee machine cannot pump water although there is water in the tank, the water circuit may be empty. Procedure to fill water system: 1. Perform steps 1 to 5 for preparation (see page 8). 2.

  • Page 10: Making Coffee

    Operation Making coffee 1. Open closing handle. 2. Insert capsule. 3. Press down closing handle completely. 4. Position cup under coffee outlet. 5. Press coffee button. 6. Press button again to stop coffee flow when cup is full. 7. Briefly open closing handle after coffee preparation and eject capsule into capsule container.

  • Page 11: Empty Water System

    Operation Empty water system After operation, residual water remains in the water circuit. This residual water can be removed - before a longer period of non-use, - for frost protection, - before repair and following shipping. 1. Empty water tank. 2.

  • Page 12: Coffee Machine Status

    Operation Coffee machine status Operating mode Coffee button LED signal After pressing the On/Off button, an automatic self test is performed to check if the NTC is connected, Heat up (coffee) blinking slow the NTC is short circuited, the thermoblock reaches the standby temperature within 2 minutes in brewing Ready mode.

  • Page 13: Troubleshooting

    Troubleshooting Checking the machine on receipt Follow the check procedure. The receipt check enables you to rapidly Repair any faults found and check if the locate faults on the machine and to initiate machine is operating perfectly. appropriate repair action. Check procedure Symptoms Action / repair work...
  • Page 14 YES - Machine is scaled NO - Replace pump 6.3 Flow rate out of range Contact Nespresso Technical Correspondant for NO - No trouble found during the check procedure. further details in order to take decision. YES - Descale machine (see page 24) 7 Descaling process (if needed) 7.1 Machine scaled...

  • Page 15: Repair

    Repair General disassembly Tool: Oval screwdriver Empty water system if necessary (see page 11). Unplug from the mains before disassembling machine - appliance must be isolated! Procedure: 1. Remove water tank (33) and drip tray (8) together with drip grid (7) and capsule container (6).

  • Page 16: Replacing Thermoblock

    Repair Replacing thermoblock Tools: Torx screwdrivers T10, T30 Open-ended spanner 10 mm AF Torque wrench Procedure: 1. Follow general disassembly (see page 15). 2. Remove 3 screws (2) and separate thermo- block (40) with support (40) from chassis. 3. Remove screw M6 x 25 and separate thermoblock from its support.

  • Page 17: Replacing Ntc

    Repair Replacing NTC Tools: Torx screwdriver T10 Open-ended spanner 10 mm AF Torque wrench Procedure: 1. Follow general disassembly (see page 15). 2. Remove electronic housing (28). 3. Unplug NTC connector from electronic control board (28). 4. Remove defective NTC temperature sensor (43) from thermoblock (40) and replace it with new one.

  • Page 18: Replacing Pump

    Repair Replacing pump Tools: Torx screwdriver T10 Long-nose pliers Blade screwdriver, no. 7 Procedure: 1. Follow general disassembly (see page 15). 2. Remove clip (14), hose (18) and o-ring (15). 3. Remove angled hose (9). 4. Release pump (17) first from rubber strap (12) at the side of the angled hose.

  • Page 19: Replacing Electronic Control Board With Button Prints

    Repair Replacing electronic control board with button prints Tools: Torx screwdriver T10 The service engineer must be earthed using an earthing strap! Only touch button prints with dedicated gloves to avoid oxydation. Procedure: 1. Follow general disassembly (see page 15). 2.

  • Page 20: Replacing Compact Brewing Unit (Cbu)

    Repair Replacing compact brewing unit (CBU) Tools: Torx screwdrivers T10, T20 Blade screwdriver no. 4 Oval screwdriver Long-nose pliers Torque wrench Procedure: 1. Remove water tank (33) and drip tray (8) together with drip grid (7) and capsule container (6). 2.

  • Page 21: Electronic Control Board, Wiring Diagram - Europe (230V / 50 Hz)

    Repair Electronic control board, wiring diagram - Europe (230V / 50 Hz) Electronic Main Board ON/OFF Print Coffee Button Print 1) Heat sink 2) Print for On/Off button 3) Print for coffee button with LED 4) NTC temperature sensor 5) Fine-wire fuse on thermoblock 6) Fine-wire fuse on pump Thermoblock J7 J6...

  • Page 22: Electronic Control Board, Wiring Diagram - Usa (Ul, 120 V / 60 Hz)

    Repair Electronic control board, wiring diagram - USA (UL, 120 V / 60 Hz) Electronic Main Board ON/OFF Print Coffee Button Print 1) Heat sink 2) Print for On/Off button 3) Print for coffee button with LED 4) NTC temperature sensor 5) Fine-wire fuse on thermoblock Thermoblock J7 J6...

  • Page 23: Electronic Control Board, Wiring Diagram - Japan (100 V / 50-60 Hz)

    Repair Electronic control board, wiring diagram - Japan (100 V / 50-60 Hz) Electronic Main Board ON/OFF Print Coffee Button Print 1) Heat sink 2) Print for On/Off button 3) Print for coffee button with LED 4) NTC temperature sensor 5) Fine-wire fuse on thermoblock 6) Fine-wire fuse on pump Thermoblock...

  • Page 24: Descaling (1)

    Repair Descaling (1) Only use Nespresso decalcifier - never vinegar! Decalcifier is aggressive to surfaces. Preparation: 1. Switch off machine. 2. Eject capsule. Insert filter from descaling kit in capsule inlet and close handle. 3. Empty drip tray and capsule container and remove drip grid.

  • Page 25: Descaling (2)

    Repair Descaling (2) 9. Fill water tank again with descaling solution from pot. 10. Repeat descaling procedure one more time: Press coffee button and let entire descaling solution run through. Rinsing: 11. Empty pot. 12. Remove filter from capsule inlet. 13.

  • Page 26: Measuring Flow Rate

    Repair Measuring flow rate Procedure: 1. Fill water tank. 2. Insert pressure plug in capsule inlet. 3. Press down closing handle lightly till pressure plug fits in capsule cage. 4. Pull off holding device. The pressure plug clamps itself to the capsule cage. 5.

  • Page 27: Checking For Leaks And Pump Pressure (1)

    Repair Checking for leaks and pump pressure (1) The following components are checked for leaks: Compact brewing unit Connections Thermoblock Pump Preparation (unplug machine from mains): 1. Remove right side panel (pump is visible). 2. Insert pressure plug in capsule inlet. 3.

  • Page 28: Checking For Leaks And Pump Pressure (2)

    Repair Checking for leaks and pump pressure (2) Procedure (continued): 8. Switch on machine. Press coffee button after heating-up. 9. Open valve and leave water to run out for approx. 10 s. 10. Fully close valve. The pressure will rise rapidly initially and stabilise between 16 - 19 bar (check of pump pressure).

  • Page 29: Measuring Coffee Temperature

    Repair Measuring coffee temperature Procedure: 1. Press On/Off button to switch on machine. 2. Position measuring beaker underneath coffee outlet. 3. After warming up, press coffee button and preheat coffee outlet for 10 s with hot water. 4. Insert a capsule (Cosi is the most suitable). 5.

  • Page 30: Daily Care And Final Cleaning

    Repair Daily care and final cleaning Procedure: 1. Eject capsule. 2) Empty capsule container. 3) Empty water tank and drip tray. 4) Clean water tank and drip tray. 5) Fill tank with fresh water. 6) Reassemble coffe machine. 7) Press On/Off button. 8) Press coffee button and rinse coffe outlet for 10 s.

  • Page 31: Spare Parts

    Repairing/service holder device A (for EF 470) Repairing/service holder device B (for EF 471) 0004872 Special screwdriver with oval bit 0004878 Oval bit for screwdriver * Only available through Nespresso. Please contact the Nespresso club. 0004878 0004872 Service Manual EF 470 / EF 471 Version 1.1...

  • Page 32: Spare Parts Ef 470

    Drip grid EF 470 40477 Drip tray EF 470 printed : "Turmix" 40478 Drip tray EF 470 printed : "Krups" 40479 Drip tray EF 470 printed : "Nespresso" 39197 Hose water tank / pump 40691 Water tank connector assembled 39195...
  • Page 33 Spare Parts Spare parts EF 470 (continued) Pos. EFR nr. Component 42135 Power cord UL1,3m 39271 Power cord Japan1,3m 38412 Angle connection for hoses 39188 Electronic base 40688 Electronic set 230V 40689 Electronic set 120V 40690 Electronic set 100V 39153 "Coffee"...

  • Page 34: Spare Parts Ef 471

    Side panel EF 471 green 39171 Capsule container EF 471 39151 Drip grid EF 471 40480 Drip tray EF 471 printed : "Nespresso" 40481 Drip tray EF 471 printed : "Magimix" 40482 Drip tray EF 471 printed : "Koenig" 40483 Drip tray EF 471 printed : "DeLonghi"...
  • Page 35 Spare Parts Spare parts EF 471 (continued) Pos. EFR nr. Component 39368 Power cord GB 1,3m 42135 Power cord UL 1,3m 39271 Power cord Japan 1,3m 38412 Angle connection for hoses 39188 Electronic base 40688 Electronic set 230V 40689 Electronic set 120V 40690 Electronic set 100V 39154...

  • Page 36: Notes

    Notes Service Manual EF 470 / EF 471 Version 1.1...

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Essenza ef 471

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