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Krups NESCAFE Dolce Gusto MINI-ME Service Manual
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Krups NESCAFE Dolce Gusto MINI-ME Service Manual

Krups NESCAFE Dolce Gusto MINI-ME Service Manual

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SERVICE MANUAL
BEVERAGE CENTER
MINI-ME
Version 1.1 en

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Summary of Contents for Krups NESCAFE Dolce Gusto MINI-ME

  • Page 1 SERVICE MANUAL BEVERAGE CENTER MINI-ME Version 1.1 en...

  • Page 2: Table Of Contents

    ....................5 Overview of external parts.................... 5 Overview of internal parts..................... 6 Overview of rating plates....................7 De Longhi rating plate ....................7 Krups rating plate ..................... 8 Water circuit........................ 10 Technical data ......................11 Operating ........................ 13 Machine status ......................13 Preparation, first use ....................
  • Page 3 Final testing ......................50 Test equipment......................50 Heating up time ......................51 Flow rate (at 8 bar) / water temperature..............51 Maximal pressure / leakage check................53 Final inspections ....................54 General ........................54 Safety instructions....................... 55 Protective earthing (PE) resistance test..............55 Insulation resistance test.....................
  • Page 4 P R E F A C E The purpose of this Service Manual is to provide the service personnel with all neces- Please keep this sary information with regards to correct handling, maintenance and repair of the Mini Me manual together beverage center.

  • Page 5: Main Components

    M A I N C O M P O N E N T S M A I N C O M P O N E N T S Overview of external parts This is the Krups machine version. STOP The Krups machine version is also shown in the repair chapter.

  • Page 6: Overview Of Internal Parts

    M A I N C O M P O N E N T S Overview of internal parts 1. Power button 9. NTC temperature sensor 2. Locking lever 10. Thermo fuses (2x) 3. Needle plate 11. Electronic main board 4. Hot-cold selection lever 12.

  • Page 7: Overview Of Rating Plates

    M A I N C O M P O N E N T S Overview of rating plates De Longhi rating plate The rating plate is laser-engraved. The rating plate • can be found on the underside of the machine, •...

  • Page 8: Krups Rating Plate

    M A I N C O M P O N E N T S Krups rating plate The rating plate is laser-engraved. TYPE KP120 www.krups.com 220-240V~ 50/60Hz 1340-1600W Do not immerse in water CCCCCCXYZ MADE IN CHINA REF: KP120XYY /7Z0- WWYY R The rating plate •...
  • Page 9 M A I N C O M P O N E N T S Breville rating plate (example) Mini-Me service manual...

  • Page 10: Water Circuit

    M A I N C O M P O N E N T S Water circuit 9,10 1. Water tank with valve 6. Selection lever 2. Filter and connector 7. F-connector 3. Flow meter 8. Capsule holder 4. Pump 9. Needle plate 5.

  • Page 11: Technical Data

    M A I N C O M P O N E N T S Technical data Mains voltage Europe (UK, CH, DE, AT, FR, ES, PT, IT, NL, LU, BE, NO, SE, FI, DK, GR, CZ, SK, PL, HU, RU, UA, LT, LV, EE, BG, RO, SI, BiH, SRB, HR)... 230 V / 50 Hz USA / Canada ...................120 V / 60 Hz Hong Kong ..................220 - 240 V / 50 Hz Mexico....................127 V / 50/60 Hz...
  • Page 12 M A I N C O M P O N E N T S Various data Pre-heating time ..................approx. 40 sec. Pump pressure max................. 13.5 ± 1.5 bar Noise ....................... max. 65 dB(A) Dimensions [mm] 240.5 Dimensions (DxWxH) ................305 x 161 x 240 mm Power cord length ..................

  • Page 13: Operating

    O P E R A T I N G O P E R A T I N G Machine status After switching on, an automatic self-test is performed to check if the NTC is connected, NTC is not short circuited, the thermoblock reaches the working temperature in about 40 seconds, the selection lever is in middle position.

  • Page 14: Preparation, First Use

    O P E R A T I N G Preparation, first use The new machine has to be rinsed properly before first use according to the following sequence: Open locking handle and insert 1. Rinse water tank at first. Then fill empty capsule holder.
  • Page 15 O P E R A T I N G If no water comes out and machine STOP switches to error mode: • Switch machine off and on again. • Check if water tank is full and inserted correctly. • Move selectionlever 13.

  • Page 16: Preparing A Beverage

    O P E R A T I N G Preparing a beverage The drip tray is height-adjustable to 3 levels. Choose an appropriate cup size for beverage. 30 sec Users allergic to dairy products: clean capsule holder under running water 1.

  • Page 17: Economy Mode (Auto Shut-Off Function)

    O P E R A T I N G Danger of damage and hot water / product splashes. Do not open locking handle prematurely. Risk of burning from hot capsule. Do not touch capsule immediately after use. 16. Take cup from drip tray. 18.

  • Page 18: Empty Fluid System For Shipping

    O P E R A T I N G Empty fluid system for shipping For shipping a machine, it is important to empty the fluid system. The machine will not work without inserted capsule holder. 1. Empty water tank and drip tray. 2.

  • Page 19: Troubleshooting

    T R O U B L E S H O O T I N G T R O U B L E S H O O T I N G Checklist The checklist enables you to rapidly locate faults on the machine and to initiate appropriate repair action. Follow the check procedure.
  • Page 20 T R O U B L E S H O O T I N G Check Further action / Symptoms Action / repair work procedure repair work YES - a) Check if power cord is YES - Go to point b) functional NO - Replace it (see page 36) YES - Go to point c)
  • Page 21 T R O U B L E S H O O T I N G Check Further action / Symptoms Action / repair work procedure repair work YES - Fill water tank YES - a) Water tank is empty? NO - Go to point b) YES - b) Water tank is correctly YES - Go to point c) inserted?
  • Page 22 T R O U B L E S H O O T I N G Check Further action / Symptoms Action / repair work procedure repair work YES - Perforate capsule only YES - a) Capsule has multiple 6.1 Leakage at extraction once, see user manual perforations? head...

  • Page 23: Repair

    Non-observance of these notes can lead to injuries and damages! The disassembly and repair procedures are presented as step by step instructions. The position numbers of the parts correspond to the Krups spare parts list. Parts not included in the spare parts list are marked with capital letters.

  • Page 24: Tools And Repair Accessories

    R E P A I R Tools and repair accessories With the following tools, all described disassembly and repair work can be done: A pin-torx screw head looks like this: Tools Applications Torx screwdriver for security screws, Fastening screws for extraction head, side panels Pin-TX 10 and water tank connector Phillips screwdriver no.
  • Page 25 R E P A I R Danger of injury - sharp pointed needle! The extraction head is adjusted to a specific needle plate. Do not assemble a different needle plate by mistake. 6. Close locking handle (27). 7. Release latch by pressing a suitable pin (dia. 1.8 mm, max. e.g. a paper clip) through hole and remove needle plate (29) by pulling it down.
  • Page 26 R E P A I R 11. Check and clean needle plate holder (a) and outlet (b) of F-connector. 12. Perform a complete descaling resp. rinsing cycle without mounted needle plate. It is important to flush the machine thoroughly prior to the assembly of the needle plate.

  • Page 27: General Disassembly

    R E P A I R General disassembly Unplug machine from mains before disassembling - appliance must be isolated! Store cleaning nee- dle (26) at a safe place. 1. Remove water tank (5), then capsule holder (4) and drip tray (7) together with drip grid (6).
  • Page 28 R E P A I R 3. Unlatch the cover by opening the two snap connections at the bottom. Be very careful - snap connections are very fragile! Mini-Me service manual...

  • Page 29: Replacing Water Tank Connector

    R E P A I R Replacing water tank connector 1. Perform general disassembly. 2. Lift up water tank connector (12). 3. Pull of hose from flowmeter (30). Assembly tip • Check that filter element (d) and gasket (c) are inserted correctly. Otherwise the water tank can leak or the water tank valve does not open.

  • Page 30: Replacing Flowmeter

    R E P A I R Replacing flowmeter 1. Perform general disassembly. Use a screwdriver 2. Unplug flowmeter connector (f) from electronic mainboard (20). with flat blade to 3. Lever flowmeter (30) out of baseplate with a screwdriver. lever connector out of 4.

  • Page 31: Replacing Pump

    R E P A I R Replacing pump Depending on sup- plier, the body of the pump can have dif- ferent colours. 1. Perform general disassembly. 2. Disconnect flat receptacle (g) from electronic mainboard (20, see detail). The flat receptacles have a special connector latching. Press down lever at first, then pull receptacle.
  • Page 32 R E P A I R 3. Remove both pressure hoses (23 and j) with clips from pump (21). 4. Press blade of a small screwdriver into side opening (h) to lift catch. Then cautiously lever pump (21) out of support by hand. 5.

  • Page 33: Assembly Tips

    R E P A I R Assembly tips • Cut cold water pressure hose from extraction head to pump to 35 mm length according to illustration. to extraction head Make sure that the Always use new clips for pressure hose assembly. assembled pressure hose does not touch the side housing after instal-...
  • Page 34 R E P A I R The white plastic Iid on the pump is rotatable and has a square seat for the fork wrench. • Press pump (20) onto silicone elbow (16) tightly. • After assembly of the new pump, check the mounting position of its pressure hose connector at the top.

  • Page 35: Replacing Ntc Temperature Sensor

    R E P A I R Replacing NTC temperature sensor 1. Perform general disassembly. 2. Unplug NTC connector (m) from electronic mainboard (20). 3. Loosen screw (18) at the retention sheet (17). 4. Rotate retention sheet (17) to back. 5. Pull out temperature sensor (33). 6.

  • Page 36: Replacing Power Cord With Thermo Fuses

    R E P A I R Replacing power cord with thermo fuses Defective thermo fuses can only be replaced together with the power cord. Power cord wires have a country- specific colour code. 1. Perform general disassembly. 2. Loosen two screws and remove strain relief (n). The strain relief (n) 3.
  • Page 37 R E P A I R 6. Unplug flat receptacles from electronic mainboard (20). 7. Unplug flat receptacle from pump (21) and thermoblock (9). The flat receptacle at the pump has a special connector latching. Press down lever at first, then pull receptacle. 8.

  • Page 38: Assembly Tips

    R E P A I R Assembly tips 8 mm min. Insulation sleeve Connecting wire Thermofuse • Keep a minimum distance of 8 mm to the case of the thermofuse when bending its connecting wires. Use only a tool with no sharp edges (e.g. round nose pliers). Danger of short circuit! Do not damage the insulation sleeve on the thermofuse during assembly.

  • Page 39: Replacing Thermoblock

    R E P A I R Replacing thermoblock 1. Perform general disassembly. 2. Unplug NTC connector and flat receptacle (from the pump) from electronic main- board (see page 35). 3. Unplug the flat receptacles from the pump (21). 4. Remove pressure hoses from thermoblock (9), use pliers for the clips. Mini-Me service manual...
  • Page 40 R E P A I R The pressure hose to the pump and all clips have to be dis- carded. 5. Remove thermoblock (9) with thermoblock support (10) - see large detail: Release retention latch of support at the base plate with a screwdriver (red circle). Push hooks beside retention latch in direction shown with a screwdriver and remove thermoblock support.

  • Page 41: Assembly Tips

    R E P A I R 7. Loosen the bayonet catch and remove the thermoblock (9) from the support (10). Assembly tips • Mount new NTC temperature sensor on thermoblock first (see page 35 and following). • Cut hot water pressure hose from extraction head to thermoblock to 35 mm length according to illustration.
  • Page 42 R E P A I R Make sure that the to extraction head assembled pressure hose does not touch the housing after installation to avoid noise emission. • Prepare new replacement pressure hose (90 mm long). Always use new • Do not forget to replace the old pressure hose (23) between thermoblock (9) and clips for pressure hose assembly.

  • Page 43: Replacing Electronic Mainboard

    R E P A I R Replacing electronic mainboard 1. Perform general disassembly. 2. Unplug connectors from electronic mainboard (20). 3. Unplug flat receptacles from electronic mainboard (line, neutral and pump). 4. Unplug flat receptacle from thermoblock. 5. Push catch (s) to the left and tilt out electronic mainboard carefully from latches (t). The flat receptacles have a special connector latching.

  • Page 44: Replacing Extraction Head

    R E P A I R Replacing extraction head 1. Perform general disassembly (see page 27). 2. Unplug all connectors that are wired with the extraction head from the electronic mainboard (20). 3. Lead these connectors through the opening in main housing. 4.

  • Page 45: Assembly Tips

    R E P A I R 5. Cut cable ties and remove extraction head’s pressure hoses from thermoblock (9) The pressure hose and pump (21). and clips have to be 6. Pull out complete extraction head. discarded together with the defect pump. Assembly tips •...

  • Page 46: Replacing Locking Handle

    R E P A I R Replacing locking handle Locking handle can be re-used after replacement of the extraction head. 1. Perform general disassembly (see page 27). 2. Remove extraction head (see page 44). 3. Press blade of a small screwdriver into openings to lift hooks (x). 4.

  • Page 47: Assembly Tips

    R E P A I R Assembly tips • Before assembling lead cables out of the handle as shown in detail drawing (y) above. • When assembling check if the hooks (x) of the handle fit correctly in the openings and that they are not broken.

  • Page 48: Replacing Magnet

    R E P A I R Replacing magnet It is recom- mended to wear gloves for replacing the magnets. 1. Perform general disassembly (see page 27). 2. Remove extraction head (see page 44). 3. Remove screws (b) and bracket (34). 4.

  • Page 49: Wiring Diagram

    W I R I N G D I A G R A M W I R I N G D I A G R A M Wiring diagram for Faston contact (6.3mm) Plug Molex pitch 1.25mm Solder connection all mains voltages Crimp connection Plug JST XH pitch 2.5mm Programmation connector...

  • Page 50: Final Testing

    F I N A L T E S T I N G F I N A L T E S T I N G The following tests guarantee the correct function of the machine: 1. Heating up time 2. Flow rate (at 8 bar) / water temperature 3.

  • Page 51: Heating Up Time

    F I N A L T E S T I N G Heating up time 1. Plug into mains and press power 2. Measure the heating up time with a button. stop watch (time until power button stops blinking). Test is passed if power button is turning green - from 25 sec to 40 sec at 230 V mains voltage - or within 60 sec at 100 V / 120 V mains voltage and 50 / 60 Hz mains frequency.
  • Page 52 F I N A L T E S T I N G 3. Insert capsule holder in machine and Test device assembly close locking handle. 4. Connect T-connector (B) and pres- sure control valve (D) with a flexible tube piece (C, approx. 25 mm long) according to illustration.

  • Page 53: Maximal Pressure / Leakage Check

    F I N A L T E S T I N G The manometer must be observed continuously and the pressure regulated by using the control valve (A) if necessary. approx. With increasing temper- 3 mm ature the pressure also increases, if necessary readjust the pressure to 8 bar.

  • Page 54: Final Inspections

    F I N A L I N S P E C T I O N S F I N A L I N S P E C T I O N S General Legal situation Repair centres can be legally obligated to ensure the safety and physical integrity of the Check the legal sit- uation in your user/consumer by national regulations and standards.

  • Page 55: Safety Instructions

    F I N A L I N S P E C T I O N S Safety instructions WAR NI NG Danger of electric shock! Risk of damage to the coffee machine. High test voltage - hazardous situations can arise if a wrong test is selected or a test is executed incorrectly.

  • Page 56: Insulation Resistance Test

    F I N A L I N S P E C T I O N S Insulation resistance test This test verifies the insulation resistance between the protective earthing conductor of the coffee machine and the phase/ neutral conductor of the coffee machine. of all conductive and touchable parts of the coffee machine (with the help of a test probe).

  • Page 57: Earth Leakage Current Test

    F I N A L I N S P E C T I O N S Earth leakage current test This test measures the leakage current in the protective earth conductor when the coffee Depending on the machine is switched on. test equipment, dif- ferent measuring methods are possible.

  • Page 58: Leakage Current Test

    F I N A L I N S P E C T I O N S Leakage current test This test measures the contact current of touchable metallic parts on the coffee Depending on the test equipment, dif- machine. The coffee machine has to be switched on for this test. ferent measuring methods are possible.

  • Page 59: Maintenance

    M A I N T E N A N C E M A I N T E N A N C E Descaling Check needle plate (see page 24) prior to descaling: Clean needle plate and deblock needle if necessary. Only use appropriate descaling solution that suits for coffee machine - never use Vinegar! Decalcifier is aggressive to surface of casing.
  • Page 60 M A I N T E N A N C E 5 sec 5. Open locking handle and insert 7. Set bar display to maximum level. empty capsule holder. Close locking Press and hold power button for at handle again. least 5 seconds.
  • Page 61 M A I N T E N A N C E STOP 16. Move lever to the left. 18. Wait until the lever comes back to the 17. Machine descales in start-stop oper- middle position. The power button ation for approx. 2 min. blinks green for 2 minutes at the end of descaling.
  • Page 62 M A I N T E N A N C E 29. Empty and clean the jug, rinse and 31. Place drip grid on drip tray and insert clean the water tank using clean it into the desired position. cleaning tools. 32.

  • Page 63: Daily Care And Final Cleaning

    M A I N T E N A N C E Daily care and final cleaning Never use detergents to clean the appliance. Do not clean in a dishwasher. Clean the appliance only using soft cleaning cloths, sponges or brushes. The water tank must be cleaned with a baby bottle brush.
  • Page 64 M A I N T E N A N C E STOP Never use a wet sponge to clean the head of the machine! 14. Wait until the lever comes back to the 16. Place drip grid on drip tray and insert middle and rinsing stops.

  • Page 65: Packing Instructions

    M A I N T E N A N C E Packing instructions The beverage center and all accessories must be packed in polybags to avoid scratches during transportation. 1. Check if cleaning needle is in 2. Check if capsule holder is inserted. support.
  • Page 66 M A I N T E N A N C E 5. Insert machine and drip tray in a pulp 6. Put pulp trays together. tray. 7. Insert pulp trays in cardboard box. 8. Close cardboard box and secure lid with adhesive tape.

  • Page 67: Spare Parts

    S P A R E P A R T S S P A R E P A R T S 3 4 6 7 Mini-Me service manual...
  • Page 68 Frame 9770.22-002 Housing back 9770.22-003 Head housing front 9770.12-059 Assembly capsule holder 9770.12-057 Assembly water tank 9770.12-007 Drip grid, Krups version 9770.22-004 Drip grid, De Longhi version 9770.12-006 Drip tray 9770.12-060 Assembly head acc. country Assembly thermoblock complete 9770.12-033 Thermoblock support acc.

  • Page 69: Notes

    N O T E S N O T E S Mini-Me service manual...
  • Page 70 N O T E S Mini-Me service manual...