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Miele CVA610 Technical Information

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TECHNICAL INFORMATION
CVA610 Coffee System
© 2004 Miele

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  Summary of Contents for Miele CVA610

  • Page 1 TECHNICAL INFORMATION CVA610 Coffee System © 2004 Miele...
  • Page 3: Table Of Contents

    CVA610 Coffee System - Table of Contents 1.0 CONSTRUCTION & DESIGN 1.1 Appliance Overview 1.2 Technical Data 1.3 Layout of Components 2.0 INSTALLATION Installation Procedures 3.0 COMMISSION and OPERATION 3.1 General Operation 3.1.1 Preparing Coffee 3.1.2 Canceling the Preparation 3.1.3 Steam Control 3.1.4 Hot Water Dispensing...
  • Page 4 4.0 DESCRIPTION of FUNCTION (Continued) 4.18 Water Path 4.18.1 Water Intake 4.18.2 Water Path - Coffee 4.18.3 Water Path – Hot Water 4.18.4 Water Path - Steam 4.18.5 Steam Valve and Steam Valve Switch 4.19 Heater Outlet Valve (Nipple) 4.20 Electronic Assembly 5.0 SERVICE and MAINTENANCE 5.1 Lid –...
  • Page 5 5.0 SERVICE and MAINTENANCE (Continued) 5.26 Brew Unit – Filter Cleaning 5.27 Brew Unit – Degreasing via the Rinse Cycle 5.28 Brew Unit – Lubrication 5.29 Brew Unit – Manual Reset to “Home Position” (Brew Unit Not Installed) 5.30 Brew Unit Creamer Valve – Removal 5.31 Brew Unit Handle –...
  • Page 6 6.0 FAULT DIAGNOSIS 6.1 Programming Mode 6.2 Service Mode 6.3 Displayed Messages 6.4 Uneven Filling 6.5 Brew Unit – Can’t be removed from appliance 6.6 Brew Unit – Can’t be installed 6.7Grinder Setting – Can’t be set to finer position...
  • Page 7 CVA610 Coffee System – List of Figures 1-1 Appliance Overview (Exterior) 1-2 Appliance Overview (Interior) 1-3 Product Dimensions 1-4 Overview of Components 2-1 Installation Information 3-1 Coffee cup placed under both dispensers 3-2 Pressing the Coffee Button 3-3 Displayed Message During Dispensing...
  • Page 8 CVA610 Coffee System – List of Figures (Continued) 4-24 Electronic Board (Layout) 5-1 Lid and Securing Screws 5-2 Mains Filter Mounting 5-3 Rear Panel – Removal 5-4 Removing the Slide Switch Frame 5-5 Door Switch 5-6 Base Plate Removal 5-7 Drip Tray...
  • Page 9 CVA610 Coffee System – List of Figures (Continued) 5-38 Underside view of the CVA610 5-39 Removing the Bean Container 5-40 Removing the Beans Container Guide 5-41 Accessing the Grinder 5-42 Upper section of the Grinder 5-43 Grinder 5-44 Grinder Removal...
  • Page 11: Construction & Design

    CVA610 Coffee System Technical Information Construction and Design Appliance Overview Figure 1-1: Appliance Overview (Front & Controls)
  • Page 12: Appliance Overview (Interior)

    CVA610 Coffee System Technical Information Figure 1-2: Appliance Overview (Interior)
  • Page 13: Technical Data

    Technical Information Technical Data Figure 1-3: CVA610 Product Dimensions Electrical Information The CVA610 Coffee System is equipped with a power cord and a molded NEMA 6-15P plug for connection to a 240 (208) V, 15 A, 60 Hz NEMA 6-15R (receptacle).
  • Page 14 CVA610 Coffee System Technical Information...
  • Page 15: Layout Of Components

    CVA610 Coffee System Technical Information Layout of Components Steam Valve Switch 16 Terminal Block Door Magnet 17 Flowmeter Fluorescent Bulb 18 Interference Capacitor Starter 19 Electronic Board Control Panel / Electronic 20 Door Interlock Switch Selector Switch 21 Water Pump...
  • Page 16 CVA610 Coffee System Technical Information...
  • Page 17: Installation

    CVA610 Coffee System Technical Information Installation Figure 2-1: Installation Information Note For further information, refer to the installation section of the Operating Manual -OR- the Miele installation Manual.
  • Page 18 CVA610 Coffee System Technical Information...
  • Page 19: Commission And Operation

    CVA610 Coffee System Technical Information Commission and Operation General Operation 3.1.1 Preparing Coffee 1. Place a cup under both coffee dispensers. Figure 3-1: Coffee cup placed under both dispensers. 2. Press the desired coffee button once. Figure 3-2: Pressing the coffee button The coffee will be prepared.
  • Page 20: Canceling The Preparation

    CVA610 Coffee System Technical Information 3.1.2 Canceling the Preparation Press one of the coffee buttons to stop preparation immediately. Figure 3-4: Canceling the preparation 3.1.3 Steam Control ● Turn the steam ON by turning the steam selector counter- clockwise. ● Turn the steam OFF by turning the steam selector clockwise.
  • Page 21: Hot Water Dispensing

    CVA610 Coffee System Technical Information 3.1.4 Hot Water Dispensing 1. Place a cup under the hot water dispenser. Figure 3-6: Cup placed under hot water dispenser 2. Press the hot water button. Hot water will be dispensed. 3. Press the hot water button again to stop the hot water flow.
  • Page 22: Adjusting The Coffee Grinder

    CVA610 Coffee System Technical Information 3.1.5 Adjusting the Coffee Grinder Controls: to the left for finer grinding to the right for coarser grinding. Figure 3-8 Grinder Adjustment Controls If the coffee flows too quickly, the beans have been ground too coarsely.
  • Page 23: Filling The Coffee Bean Container

    CVA610 Coffee System Technical Information 3.1.6 Filling the Coffee Bean Container 1. Carefully pull the container outward until the lid is visible. 2. Lift the lid (as shown in figure 3-9. 3. Fill the container with coffee beans to about 1" from the top.
  • Page 24: Filling The Water Tank

    CVA610 Coffee System Technical Information 3.1.7 Filling the Water Tank The Water Tank must be cleaned and filled with fresh water before each day of use. A reminder will appear in the message window when the unit is first turned on.
  • Page 25: Description Of Function

    CVA610 Coffee System Technical Information Description of Function Door Switch (S24) The Door Switch interrupts the main power circuit when the door is opened. Figure 4-1: Door Contact Switch (S24) Overflow Switch (B8/3) The Overflow Switch is mounted to the bottom of the casing. The associated float (with internal magnet) is located within the drip tray.
  • Page 26: Brew Unit - Home Position

    CVA610 Coffee System Technical Information Brew Unit – Home Position Refer to figure 4-2. The brew unit must be in the “home position” before it can be removed from the appliance. Fig. 4-2: Brew Unit in the “home” position...
  • Page 27: Brew Unit - Drive & Water Connections

    CVA610 Coffee System Technical Information Brew Unit – Drive and Water Connections Refer to figure 4-3. When the Brew Unit is installed, it locks into position. The Locking Mechanism Switch Lug (item 3), activates the Brew Unit Present Switch (item 4). The Drive Shaft (item 6), engages with the Drive Shaft Socket (item 1) to provide drive to the Brew Unit.
  • Page 28: Brewing Procedure

    CVA610 Coffee System Technical Information Brewing Procedure 1. The output of the Grinder provides ground coffee to the Dispenser Housing; until it filled (as determined by the dispenser switch). 2. The Grinder is then powered by off by the Electronic.
  • Page 29: Brew Unit Components

    CVA610 Coffee System Technical Information Refer to figure 4-5 5. The Brew Unit Drives move the Brew Unit into the “Brewing Position” (as determined by the Brew Position Switch). The grounds are compressed between the top filter (item 2) and bottom filter (item 5).
  • Page 30 CVA610 Coffee System Technical Information Refer to figure 4-6… 7. The drives are energized (in reverse) and move the Brew Unit toward the “home position” position. As this action occurs the coffee chamber moves upward and releases the used compressed coffee grounds. (item1).
  • Page 31: Waste Unit

    “Empty Waste Unit” message to the user. Waste Unit Present Switch The Waste Unit Present Switch is mounted to the bottom of the CVA610 housing (behind the area of the Waste Unit) – as shown in the figure 4-7. Figure 4-7: Waste Unit Present Switch.
  • Page 32 CVA610 Coffee System Technical Information The actuating magnet (Figure 4-8, item 1) for the Waste Unit Present Switch is located at the bottom edge of the Waste Unit. Figure 4-8: Waste Unit. (1) Magnet for Waste Unit Present Switch. Note...
  • Page 33: Water Tank

    CVA610 Coffee System Technical Information Water Tank Refer to the figure 4-9. The Water Tank holds the water for the coffee, hot water and steam. When the water tank is fitted in position, the sealing ring presses upward so water cannot leak.
  • Page 34: Water Level Switch

    CVA610 Coffee System Technical Information Water Level Switch The Water Level Switch is located within the housing, in the area behind the Water Tank Cavity (as shown in figure 4-10). Figure 4-10: Water Level Switch The Actuating Magnet for the Water Level Switch is located within the float.
  • Page 35: Grinder Assembly

    CVA610 Coffee System Technical Information 4.10 Grinder Assembly Refer to figure 4-12. The grinding grade depends on the gap between the Grinding Cone (Item 1) and the Grinding Ring (Item 2). The gap is set via the Adjustment Lever, (Item 5) on the Adjustment Ring (Item 3).
  • Page 36: Grinder - Overload Protection

    CVA610 Coffee System Technical Information 4.11 Grinder - Overload Protection Should the grinder become blocked by a foreign object (i.e. stone / pebble), the slip coupling interrupts the drive between the motor and the grinder. Refer to figure 4-13… The Grinder Motor (item 1) drives the Mounting (item 3) via the Carriers (item 2).
  • Page 37: Grinder Cone Ball Positions

    CVA610 Coffee System Technical Information Should the grinder cone become blocked, the Balls get pressed into the Mounting (as shown below in figure 4-14, Item C) resulting in the drive force being interrupted. A Normal operation B Overload protection activated C Force transfer interrupted Figure 4-14: Grinder cone ball positions under various operating conditions.
  • Page 38: Ground Coffee - Dispensing

    CVA610 Coffee System Technical Information 4.12 Ground Coffee - Dispensing Refer to figure 4-15. By adjusting the Dispenser Lever (item 1), the position of the Dispensing Switch (item 2) is modified. The change results in change to the volume of the dispenser container; hence the quantity of ground coffee changes.
  • Page 39: Dispensing Lever

    CVA610 Coffee System Technical Information Figure 4-16: Dispensing Lever The dispensing solenoid is activated twice by the electronic. During the initial activation the ground coffee drops into the brew unit. The second activation is to ensure no loose grounds block the channel, as the wiper passes and loosens any ground coffee residues.
  • Page 40: Brew Unit Drives

    CVA610 Coffee System Technical Information 4.13 Brew Unit Drives Refer to figure 4-17… The Brew Unit locks into position against the Drives Mounting Plate. The locking mechanism Switch Lug (Item 3) activates the Brew Unit Present Switch (Item 4). The Drive Shaft, (Item 6)
  • Page 41: Brew Unit Drive Assembly

    CVA610 Coffee System Technical Information Refer to figure 5-18. The Drive Motor (Item 4) powers the Worm Gear (Item 3). The drive action is transferred to the Step-down Gear and then the Drive Gear. The center of the Drive Gear contains the Drive Shaft that connects to the Brew Unit Drive Shaft Socket.
  • Page 42: Water Pump

    CVA610 Coffee System Technical Information 4.14 Water Pump The pump is self-priming and can develop a pressure of up to approx. 16 bar. For espresso preparation a pressure of approx. 8 bar is required so that the water can be forced through the compressed ground coffee.
  • Page 43: Flow Meter

    CVA610 Coffee System Technical Information 4.15 Flow meter All water taken from the water container flows through the flow meter. The flow meter passes signals to the electronic unit proportional to the quantity of water passing through it. The electronic unit then establishes the quantity of water that has flowed and stores the figure.
  • Page 44: Heaters

    CVA610 Coffee System Technical Information 4.17 Heaters Refer to the figure 4-20… The Coffee / Hot Water consist of a large heater element (Item 1) and a smaller heater element (item 7). The Steam Heater has consist of one heater element (figure 4-21, Item 3).
  • Page 45: Steam Heater

    CVA610 Coffee System Technical Information The heating circuit also contains a Temperature Activated Safety Fuse. Should the temperature exceed a specific threshold due to an operating fault, the fuse blows and interrupts power to the element(s). Should this fuse be blown, the cause must be located and resolved before replacing the fuse.
  • Page 46: Water Path

    CVA610 Coffee System Technical Information 4.18 Water Path Water tank Sealing ring Water filter Flow meter Pump Valve - Safety Drain hose - Excess pressure Through-flow heater - Coffee Outlet to brew unit (nipple) Valve - Steam (solenoid valve) Valve - Hot water (solenoid valve)
  • Page 47: Water Intake

    CVA610 Coffee System Technical Information 4.18.1 Water Intake The Water Pump is responsible for taking in water from the Water Tank. The bottom of the pump contains a safety valve. The valve is designed to open should the system pressure exceed 16 bar (232 psi).
  • Page 48: Heater Outlet Valve (Nipple)

    CVA610 Coffee System Technical Information 4.19 Heater Outlet Valve (Nipple) The Heater Outlet Valve is normally closed. However, during the brewing process the Brew Unit is driven into the “Brew Position and mechanically opens valve. This allows the hot water (under pressure) to flow through the brew unit.
  • Page 49: Electronic Assembly

    CVA610 Coffee System Technical Information 4.20 Electronic Assembly Figure 4-24: Preview of Electronic Board Assembly For further information on the electronic modes – refer to section 6 “Fault Diagnosis”...
  • Page 50 CVA610 Coffee System Technical Information...
  • Page 51: Service And Maintenance

    CVA610 Coffee System Technical Information Service and Maintenance Lid - Removal 1. Remove the lid screws, as shown in Figure 5-1 2. Remove the lid. Figure 5-1: Lid and securing screws Mains Filter (Z1) - Removal 1. Perform: Lid removal (5.1).
  • Page 52: Rear Panel - Removal

    CVA610 Coffee System Technical Information Rear Panel - Removal Remove the lid (5.1). 2. Remove the Mains Filter (5.2). 3. Remove the fixing screws from the rear panel. 4. Disconnect the earth lead from the rear panel. 5. Remove the rear panel upwards.
  • Page 53: Adjustment Slide Switch Frame - Removal

    CVA610 Coffee System Technical Information Adjustment Slide Switch Frame - Removal 1. Open the door. 2. Pull off the slide switch knobs. Press the retaining lugs inwards with a small screwdriver (Figure 5-4). Remove the frame. Figure 5-4: Removing the Adjustment Slide Switch Frame (Bezel).
  • Page 54: Door Contact Switch - Removal

    CVA610 Coffee System Technical Information Door Contact Switch (S24) - Removal Refer to figure 5-5 below… 1. Remove the lid (5.1) 2. Open the door. 3. Disconnect the door switch connections. 4. Press the switch retaining lugs inwards with a small screwdriver.
  • Page 55: Base Plate - Removal

    CVA610 Coffee System Technical Information Base Plate - Removal Remove the Lid, Mains and Rear Panel (5.1 to 5.3) 2. Open the door. 3. Remove the grounds container. 4. Remove the water tank. 5. Check if water is present in the drip tray with a finger through the opening under the water container.
  • Page 56: Drip Tray - Removal

    CVA610 Coffee System Technical Information Drip Tray - Removal Remove the Lid, Mains and Rear Panel (5.1 to 5.3) 2. Remove the Base Plate (5.6) 3. Remove the drip tray. Figure 5-7: Drip Tray...
  • Page 57: Overflow Switch Actuator Float - Removal

    CVA610 Coffee System Technical Information Overflow Switch Actuator Float - Removal Remove the Lid, Mains and Rear Panel (5.1 to 5.3) 2. Remove the Base Plate (5.6) Note The orientation of the float before removal – ensure it is re-installed in the same direction.
  • Page 58: Overflow Switch - Removal

    CVA610 Coffee System Technical Information Overflow Switch (B8/3) - Removal Remove the Lid, Mains and Rear Panel (5.1 to 5.3) 2. Remove the overflow switch fixing screw (Figure 9 – Item 1). 3. Remove the overflow switch. 4. Disconnect the overflow switch connections from the electronic.
  • Page 59: Fluorescent Lamp - Removal

    CVA610 Coffee System Technical Information 5.10 Fluorescent Lamp - Removal Refer to the figure 5-10 below… 1. Open the door. 2. Unclip the cover and remove it. 3. Turn the lamp tube 90° in the direction to remove the lamp.
  • Page 60: Rear Door Panel - Removal

    CVA610 Coffee System Technical Information 5.12 Rear Door Panel - Removal Refer to figure 5-12. 1. Open the door. 2. Remove the upper rear panel fixing screws (Item 1). 3. Remove the lower rear panel fixing screws (Item 2). Figure 5-12: Rear Door Panel – Removal.
  • Page 61: Fascia Panel Cover - Replacement

    CVA610 Coffee System Technical Information 5.13 Fascia Panel Cover – Removal 1. Open the door. 2. Remove the Rear Door Panel (5.12). 3. Remove the cover fixing screws (Figure 12 – Item 3). 4. Remove the cover 1 Fascia 2 Cable guide...
  • Page 62: Selector Switch - Removal

    CVA610 Coffee System Technical Information 5.14 Selector Switch - Removal Refer to figure 5-14. 1. Open the door. 2. Remove the Rear Door Panel and Fascia Panel Cover (5.12 & 5.13). 3. Disconnect the connections from the selector switch, 4. Remove the switch knob (Item 9).
  • Page 63: Display Module Electronic - Removal

    CVA610 Coffee System Technical Information 5.15 Display Module Electronic - Removal Refer to figure 5-15. 1. Open the door. 2. Remove the Rear Door Panel and Fascia Panel Cover (5.12 & 5.13). 3. Pull off the pushbutton knobs (Item 1).
  • Page 64: Coffee Dispensing Nozzle - Removal

    CVA610 Coffee System Technical Information 5.16 Coffee Dispensing Nozzle - Removal Refer to Figure 5-16. 1. Open the door. 2. Remove the grille and drip tray from the door. 3. Remove the fixing screws from the white panel under and behind the nozzle.
  • Page 65: Coffee Dispensing Nozzle - Fitting

    CVA610 Coffee System Technical Information 5.17 Coffee Dispensing Nozzle - Fitting Refer to figure 5-16. 1. Slide the outlet (Item 7), onto the connection hose (Item 6). 2. Position the moveable coffee dispensing nozzle, (Item 9), in the cover (Item 10).
  • Page 66: Steam Valve And Steam Valve Switch - Removal

    CVA610 Coffee System Technical Information 5.18 Steam Valve and Steam Valve Switch (S79) – Removal Refer to Figure 5-17. 1. Open the door. 2. Remove the Rear Door Panel and Fascia Panel Cover (5.12 & 5.13). 3. Pull off the switch knob (Item 8).
  • Page 67: Hot Water Nozzle - Removal

    CVA610 Coffee System Technical Information 5.19 Hot Water Nozzle – Removal Refer to figure 5-18. 1. Open the door. 2. Remove the Rear Door Panel and Fascia Panel Cover (5.12 & 5.13). 3. Loosen the nut (Item 2). 4. Remove the holder (Item 5).
  • Page 68: Hot Water Nozzle - Removal

    CVA610 Coffee System Technical Information 5.20 Hot Water Valve (Y12) – Removal Refer to figure 5-18. 1. Open the door. 2. Remove the Rear Door Panel and Fascia Panel Cover (5.12 & 5.13). 3. Disconnect the connections from the hot water valve (Item 7).
  • Page 69: Brew Unit - Removal (Not In Start//Home Position)

    CVA610 Coffee System Technical Information 5.23 Brew Unit — Removal ( NOT in start/home position) Warning This procedure will remove the brew unit from the appliance without damages. However.., after the brew unit is removed; the drives must be carefully inspected (and repaired if necessary) then placed into the start (home) position via the service mode.
  • Page 70: Brew Unit Connection Socket

    CVA610 Coffee System Technical Information Figure 5-19: Brew Unit (1) Connection Socket (2) Retaining Screw Figure 5-20: Brew Unit Connection Socket Retaining Screw and Retaining Tab.
  • Page 71: Brew Unit - Installation

    CVA610 Coffee System Technical Information 5.24 Brew Unit - Installation Slide the brew unit into position in the appliance until the locking mechanism engages with the drive mounting plate. Note Do not press the part marked PRESS during the installation of the brew unit.
  • Page 72: Brew Unit - Filter Cleaning

    CVA610 Coffee System Technical Information 3. Pull the brew unit out (Figure 21 – Item 2). 4. Clean the brew unit thoroughly under running warm water without detergent. 5. Rub away coffee residues from the steel filters with a sponge.
  • Page 73: Brew Unit - Degreasing Via The Rinse Cycle

    "Rinsing cycle" will flash in the message window after 500 cups to remind you to clean the unit using “cleaning tablets” These specialty-cleaning tablets can be purchased from Miele via the Technical Support Center at 1-800-999-1360. 1. Remove the waste unit.
  • Page 74 CVA610 Coffee System Technical Information 8. Press ENTER. The display will read: A small amount of water will flow out the coffee dispensers. After a pause more water will flow out. This process will run 4 times, dispensing 2 cups (17 oz) of hot water. The whole process lasts about 5 minutes.
  • Page 75: Brew Unit - Lubrication

    Check that the brew unit is in the basic position with the funnel slightly lifted and the socket in vertical position. Ensure the correct lubricant (Miele P/N 5132001) is used for this procedure. Lubricant is available through the Miele Technical Support Center at: 1-800-999-1360.
  • Page 76: Brew Unit - Manual Reset To "Home Position" (Brew Unit Not Installed)

    CVA610 Coffee System Technical Information 5.29 Brew Unit – Manual Reset to “Home Position” Brew Unit not installed in appliance) Refer to figure 5-26 3. Press on the latch A; and press the funnel down B. 4. Push the connection piece to the far left position C.
  • Page 77: Brew Unit Creamer Valve - Removal

    CVA610 Coffee System Technical Information 5.30 Brew Unit Creamer Valve - Removal 1. Remove the Brew Unit 2. Remove the output fixing screws. 3. Remove the output. 4. Remove the spring with Creamer Valve. 5.31 Brew Unit Handle - Removal 1.
  • Page 78: Brew Unit Funnel - Removal

    CVA610 Coffee System Technical Information 5.32 Brew Unit Funnel - Removal 1. Remove the Brew Unit from the appliance. 2. Press the funnel locking lug (Figure 29, Item 1), so that the funnel is no longer raised. 3. Lever the funnel upwards out of its holder (Figure 5-30).
  • Page 79: Brew Unit Ram - Service

    CVA610 Coffee System Technical Information 5.33 Brew Unit Ram - Service 1. Remove the Brew Unit from the appliance. 2. Remove the funnel (5.32). 3. Remove the bottom filter screw and filter (Figure 5-31, Items 1 &2). Figure 5-31: Releasing the ram from the bottom of the Brew Unit.
  • Page 80 CVA610 Coffee System Technical Information 6. Clean the brewing chamber (Figure 32), ram and bottom filter by hand with warm water without detergent, then dry. 7. Apply silicone grease to the ram lubrication points (Figure 5-33, Item 3). Figure 5-32: Brewing unit chamber inside the brew unit assembly.
  • Page 81: Water Tank Level Indicator Float - Removal

    CVA610 Coffee System Technical Information 5.34 Water Tank Level Indicator Float - Removal 1. Open the door. 2. Remove the Water Tank. 3. Lever off the cap from the Water Tank level indicator. 4. Remove the Water Tank level indicator.
  • Page 82: Water Tank Sealing Ring - Removal

    CVA610 Coffee System Technical Information 5.35 Water Tank Valve Sealing Ring - Removal 1. Open the door. 2. Remove the Water Tank. Figure 5-35: Levering off the Lip Seal Cap. 3. Lever off the Lip Seal Cap (Figure 35). 4. Remove the Lip Seal (Figure 16, Item 1).
  • Page 83: Lower Section Of Tank Valve - Removal

    CVA610 Coffee System Technical Information 5.36 Lower Section of Tank Valve - Removal 1. Open the door. 2. Remove the Water Tank. 3. Lip seal removal. 4. Remove the lower part of the valve fixing screws (Figure 37 – Item 1).
  • Page 84: Underside View Of The Cva610

    5. Remove the Bottom Plate and Drip Tray (5.6 & 5.7) 6. Disconnect the lower part of the valve connections, 7. Remove the lower part of the valve. Figure 5-38: Underside view of the CVA610 with Base Plate and Drip Tray removed.
  • Page 85: Bean Container - Removal

    CVA610 Coffee System Technical Information 5.37 Bean Container - Removal 1. Open the door. 2. Remove the Beans Container end stop screw (Figure 39). 3. Hold a suitable vessel under the container to collect the beans that will fall from the opening in the Beans Container.
  • Page 86: Bean Container Guide - Removal

    CVA610 Coffee System Technical Information 5.38 Bean Container Guide - Removal 1. Open the door. 2. Perform the Beans Container. (5.37) 3. Remove the Waste Container, Brew Unit and Water Tank. 4. Remove the Top Lid (5.1). 5. Remove the screws (Figure 5-40 - Item 2).
  • Page 87: Grinder Unit - Disassembly

    CVA610 Coffee System Technical Information 5.39 Grinder Unit - Disassembly Note The grinder ring (Figure 5-41, Item 5), and grinder cone (Figure 41 – Item 6), should always be replaced together. 1. Open the door. 2. Remove the Beans Container. (5.37).
  • Page 88 CVA610 Coffee System Technical Information 10. Turn the adjustment ring (Figure 5-42, Item 1), counterclockwise until the blue marking aligns with the blue marking on the carrier (Figure 5-42, Item 2). Figure 5-42: Upper Section of Grinder (1) Adjustment Ring, (2) Carrier & (3) Bracket.
  • Page 89: Grinder

    CVA610 Coffee System Technical Information Note When the grinding cone (Figure 5-43, Item 6), is removed the balls, (Figure 5-43, Item 8), may stick to it and then fall off. Refer to figure 5-43. 16. Remove the grinding cone (Item 6).
  • Page 90: Grinder Unit - Assembly & Basic Setting

    CVA610 Coffee System Technical Information 5.40 Grinder Unit - Assembly & Basic Setting Refer to Figure 5-43 on the previous page… Note The grinder ring (Item 6), and grinder cone, (Item 5), should only be exchanged together. 1. Fit the felt ring (Item 11).
  • Page 91: Grinder Unit - Removal

    CVA610 Coffee System Technical Information 5.41 Grinder Unit - Removal 1. Open the door. 2. Perform the Beans container removal (5.37). 3. Remove the Waste Container, Brew Unit and Water Tank. 4. Remove the Top Lid (5.1) 5. Remove the Beans Container Guide (5.38).
  • Page 92: Grinder Coupling

    CVA610 Coffee System Technical Information 11. Remove the plug from the Electronic. 12. Lift the grinder upwards from the dampers (Figure 5-45, Item 2). 1 Motor holder 2 Damper 3 Mounting plate Figure 5-45: Grinder coupling Note When refitting the grinder, the dampers should be seated in the mounting plate and motor holder to ensure the grinder coupling is set to an optimal position and grinder noise is kept to a minimum.
  • Page 93: Brew Unit Present Switch - Removal

    CVA610 Coffee System Technical Information 5.42 Brew Unit Present Switch - removal Remove the Top Lid. 2. Remove the Rear Panel. 3. Disconnect the switch (Figure 5-46, Item 2). 4. Press the retainers outward to remove the switch. Figure 5-46: Brew unit present switch location and removal.
  • Page 94: Brew Unit Drives - Home Positioning

    CVA610 Coffee System Technical Information 5.45 Brew Unit Drives – Home Positioning 1. Remove the Brew Unit from the appliance. 2. Re-install the Waste Unit. 3. Close the door. 4. Turn the selector switch to one of the operating settings.
  • Page 95: Waterpath Leakage Test

    CVA610 Coffee System Technical Information 5.47 Water Path Leakage Test Should water be present in bottom of the appliance (i.e. Watersystem Fault); or a leak is suspected the following procedure can be used to locate the source of the leak.
  • Page 96: Water Connections - Releasing

    CVA610 Coffee System Technical Information If the steps 1-5 do not disclose any leaks - continue as follows. 6. Fill the Water Tank 7. Place the appliance into the Service Mode 8. Quickly turn the selector knob to the “Operation” position 9.
  • Page 97: Water Connections - Fitting

    CVA610 Coffee System Technical Information 5.49 Water Connections - Fitting 1. Check the Sealing Rings for damage - replace as necessary. 2. Fit the Sealing Rings on the hose. 3. Insert the Hose into the Connector. 4. Fit the Retaining Spring behind the Pressed-On Ring.
  • Page 98 CVA610 Coffee System Technical Information...
  • Page 99: Fault Diagnosis

    CVA610 Coffee System Technical Information Fault Diagnosis Programming Mode The Programming Mode is available for access by the customer. The Programming Mode allows various options and / or features to configured. To access the Programming Mode, simply turn the selector knob to the “Program Mode”...
  • Page 100: Service Mode

    CVA610 Coffee System Technical Information Service Mode The Service Mode is used to check the status of various input switches and operate components in the appliance. The Service Mode is designed for accessed by qualified service personnel only. Initial requirements •...
  • Page 101: Service Mode Navigation

    CVA610 Coffee System Technical Information Service Mode - Navigation Displays Water Temperature for Water Large Coffee Heater and Steam Heater in Celsius. Med Coffee Displays firmware version LOCK Small Coffee (not used) Hot Water (not used) Rinse (not used) Large Coffee...
  • Page 102: Displayed Messages

    CVA610 Coffee System Technical Information Displayed Messages Displayed Message Information The brew unit is dirty. The brew unit is blocked. The brew unit is Jammed. BREW UNIT BLOCKED • Clean / inspect brew unit / check drives Air is present with the water system –...
  • Page 103 CVA610 Coffee System Technical Information Displayed Message Information The appliance is in the energy saving STANDBY… • Press ENTER The level switch has been actuated by water being present in the base of the appliance WATER SYSTEM FAULT • Clear unit of water from lower pan and locate / repair source of leak.
  • Page 104: Uneven Filling

    CVA610 Coffee System Technical Information Uneven Filling - When two cups of coffee/espresso are being prepared at the same time 1. Ensure the appliance is level – correct as necessary. 2. Clean the coffee nozzle. Brew Unit – Can’t be removed from appliance The brew unit is not in the starting (home) position.
  • Page 105: Grinder Setting - Can't Be Set To Finer Position

    CVA610 Coffee System Technical Information Grinding Setting – Can’t be set to a finer position (adjustment lever blocked) Check for ground coffee between the grinding ring and grinding cone. The ground coffee may have clogged the gap between the ring and cone.
  • Page 106 CVA610 Coffee System Technical Information...
  • Page 107 CVA610 Coffee System Technical Information...