Miele cva 610 Technical Information Page 1

© 2004 Miele TECHNICAL INFORMATION CVA610 Coffee System

Technical Information 90 CVA610 Coffee System 6.2 Service Mode The Service Mode is used to check the status of various input switches and oper

Technical Information 91 CVA610 Coffee System Service Mode - Navigation Large Coffee Displays Water Temperature for Water Heater and Steam Heat

Technical Information 92 CVA610 Coffee System 6.3 Displayed Messages Displayed Message Informatio

Technical Information 93 CVA610 Coffee System Displayed Message Information STANDBY… The appliance is in the energy saving • Press

Technical Information 94 CVA610 Coffee System 6.4 Uneven Filling - When two cups of coffee/espresso are being prepared at the same t

Technical Information 95 CVA610 Coffee System 6.7 Grinding Setting – Can’t be set to a finer position (adjustment lever blocked) Check for groun

Technical Information 96 CVA610 Coffee System

Technical Information 97 CVA610 Coffee System

Technical Information 1 CVA610 Coffee System 1.0 Construction and Design 1.1 Appliance Overview Figure 1-1: Appl

Technical Information 2 CVA610 Coffee System Figure 1-2: Appliance Overview (Interior)

Technical Information 3 CVA610 Coffee System 1.2 Technical Data Figure 1-3: CVA610 Product Dimensions Electrical Informa

Technical Information 4 CVA610 Coffee System

Technical Information 5 CVA610 Coffee System 1 Steam Valve Switch 2 Door Magnet 3 Fluorescent Bulb 4 Starter 5 Control Panel / Electronic 6 S

Technical Information 6 CVA610 Coffee System

Technical Information 7 CVA610 Coffee System 2.0 Installation Figure 2-1: Installation Information Note For furt

Technical Information 8 CVA610 Coffee System

Technical Information 9 CVA610 Coffee System 3. Commission and Operation 3.1 General Operation 3.1.1 Preparing Coffee 1. Place a cup u

Technical Information 10 CVA610 Coffee System 3.1.2 Canceling the Preparation Press one of the coffee buttons to stop preparation immediately.

Technical Information 11 CVA610 Coffee System 3.1.4 Hot Water Dispensing 1. Place a cup under the hot water dispenser. Figure 3-6: Cu

Technical Information 12 CVA610 Coffee System 3.1.5 Adjusting the Coffee Grinder Controls:  to the left for finer grinding  to the righ

Technical Information 13 CVA610 Coffee System 3.1.6 Filling the Coffee Bean Container 1. Carefully pull the container outward until the lid

Technical Information 14 CVA610 Coffee System 3.1.7 Filling the Water Tank The Water Tank must be cleaned and filled with fresh water before e

Technical Information 15 CVA610 Coffee System 4.0 Description of Function 4.1 Door Switch (S24) The Door Switch interrupts the main power

Technical Information 16 CVA610 Coffee System 4.3 Brew Unit – Home Position Refer to figure 4-2. The brew unit must be in the “home position”

Technical Information 17 CVA610 Coffee System 4.4 Brew Unit – Drive and Water Connections Refer to figure 4-3. When the Brew Unit is installed

Technical Information 18 CVA610 Coffee System 4.5 Brewing Procedure 1. The output of the Grinder provides ground coffee to the Dispenser Hou

Technical Information 19 CVA610 Coffee System Refer to figure 4-5 5. The Brew Unit Drives move the Brew Unit into the “Brewing Position” (as

CVA610 Coffee System - Table of Contents 1.0 CONSTRUCTION & DESIGN 1.1 Appliance Overview 1 1.2 Technical Data 3 1.3 Layout

Technical Information 20 CVA610 Coffee System Refer to figure 4-6… 7. The drives are energized (in reverse) and move the Brew Unit toward th

Technical Information 21 CVA610 Coffee System 4.6 Waste Unit After coffee has been prepared, the compressed coffee grounds “puck” falls into th

Technical Information 22 CVA610 Coffee System The actuating magnet (Figure 4-8, item 1) for the Waste Unit Present Switch is located at the bot

Technical Information 23 CVA610 Coffee System 4.8 Water Tank Refer to the figure 4-9. The Water Tank holds the water for the coffee, hot water

Technical Information 24 CVA610 Coffee System 4.9 Water Level Switch The Water Level Switch is located within the housing, in the area behind

Technical Information 25 CVA610 Coffee System 4.10 Grinder Assembly Refer to figure 4-12.  The grinding grade depends on the gap between t

Technical Information 26 CVA610 Coffee System 4.11 Grinder - Overload Protection Should the grinder become blocked by a foreign object (i.e. s

Technical Information 27 CVA610 Coffee System Should the grinder cone become blocked, the Balls get pressed into the Mounting (as shown below i

Technical Information 28 CVA610 Coffee System 4.12 Ground Coffee - Dispensing Refer to figure 4-15. By adjusting the Dispenser Lever (item 1)

Technical Information 29 CVA610 Coffee System Figure 4-16: Dispensing Lever The dispensing solenoid is activated twice by the

4.0 DESCRIPTION of FUNCTION (Continued) 4.18 Water Path 36 4.18.1 Water Intake 37 4.18.2 Water Path - Coffee 37 4.18.3 Water Pat

Technical Information 30 CVA610 Coffee System 4.13 Brew Unit Drives Refer to figure 4-17… The Brew Unit locks into position against the Drives

Technical Information 31 CVA610 Coffee System Refer to figure 5-18. The Drive Motor (Item 4) powers the Worm Gear (Item 3). The drive action is t

Technical Information 32 CVA610 Coffee System 4.14 Water Pump The pump is self-priming and can develop a pressure of up to approx. 16 bar. For

Technical Information 33 CVA610 Coffee System 4.15 Flow meter All water taken from the water container flows through the flow meter. The flow

Technical Information 34 CVA610 Coffee System1 Heater element 2 Connector 3 Temperature monitor 4 Temperature safety fuse 5 PTC Tem

Technical Information 35 CVA610 Coffee System The heating circuit also contains a Temperature Activated Safety Fuse. Should the temperature exce

Technical Information 36 CVA610 Coffee System 4.18 Water Path Figure 4-22: Water Path 1 Water tank 2 Sea

Technical Information 37 CVA610 Coffee System 4.18.1 Water Intake The Water Pump is responsible for taking in water from the Water Tank. The bo

Technical Information 38 CVA610 Coffee System 4.19 Heater Outlet Valve (Nipple) The Heater Outlet Valve is normally closed. However, during t

Technical Information 39 CVA610 Coffee System 4.20 Electronic Assembly Figure 4-24: Preview of Electronic Board Assembly For fur

5.0 SERVICE and MAINTENANCE (Continued) 5.26 Brew Unit – Filter Cleaning 62 5.27 Brew Unit – Degreasing via the Rinse Cycle

Technical Information 40 CVA610 Coffee System

Technical Information 41 CVA610 Coffee System 5.0 Service and Maintenance 5.1 Lid - Removal 1. Remove the lid screws, as shown in Figure

Technical Information 42 CVA610 Coffee System 5.3 Rear Panel - Removal 1. Remove the lid (5.1). 2. Remove the Mains Filter (5.2). 3. Remov

Technical Information 43 CVA610 Coffee System 5.4 Adjustment Slide Switch Frame - Removal 1. Open the door. 2. Pull off the slide switch kno

Technical Information 44 CVA610 Coffee System 5.5 Door Contact Switch (S24) - Removal Refer to figure 5-5 below… 1. Remove the lid (5.1) 2

Technical Information 45 CVA610 Coffee System 5.6 Base Plate - Removal 1. Remove the Lid, Mains and Rear Panel (5.1 to 5.3) 2. Open the do

Technical Information 46 CVA610 Coffee System 5.7 Drip Tray - Removal 1. Remove the Lid, Mains and Rear Panel (5.1 to 5.3) 2. Remove the B

Technical Information 47 CVA610 Coffee System 5.8 Overflow Switch Actuator Float - Removal 1. Remove the Lid, Mains and Rear Panel (5.1 to

Technical Information 48 CVA610 Coffee System 5.9 Overflow Switch (B8/3) - Removal 1. Remove the Lid, Mains and Rear Panel (5.1 to 5.3) 2.

Technical Information 49 CVA610 Coffee System 5.10 Fluorescent Lamp - Removal Refer to the figure 5-10 below… 1. Open the door. 2. Uncl

6.0 FAULT DIAGNOSIS 6.1 Programming Mode 89 6.2 Service Mode 90 6.3 Displayed Messages 92 6.4 Uneven Filling 94

Technical Information 50 CVA610 Coffee System 5.12 Rear Door Panel - Removal Refer to figure 5-12. 1. Open the door. 2. Remove the upper rea

Technical Information 51 CVA610 Coffee System 5.13 Fascia Panel Cover – Removal 1. Open the door. 2. Remove the Rear Door Panel (5.12). 3. Remo

Technical Information 52 CVA610 Coffee System 5.14 Selector Switch - Removal Refer to figure 5-14. 1. Open the door. 2. Remove the Rear D

Technical Information 53 CVA610 Coffee System 5.15 Display Module Electronic - Removal Refer to figure 5-15. 1. Open the door. 2. Remove t

Technical Information 54 CVA610 Coffee System1 Fixing screw 2 Drip tray 3 Underlay 4 Outlet 5 Cable holder 6 Connection hose 7 Outlet 8 Retainers

Technical Information 55 CVA610 Coffee System 5.17 Coffee Dispensing Nozzle - Fitting Refer to figure 5-16. 1. Slide the outlet (Item 7), onto

Technical Information 56 CVA610 Coffee System 5.18 Steam Valve and Steam Valve Switch (S79) – Removal Refer to Figure 5-17. 1. Open the do

Technical Information 57 CVA610 Coffee System 1 Sleeve 2 Nut 3 Hot water nozzle 4 Fixing screws - Holder 5 Holder 6 Connector 7 Hot water valve (Y

Technical Information 58 CVA610 Coffee System 5.20 Hot Water Valve (Y12) – Removal Refer to figure 5-18. 1. Open the door. 2. Remove the Re

Technical Information 59 CVA610 Coffee System 5.23 Brew Unit — Removal ( NOT in start/home position) Warning This procedure will remov

CVA610 Coffee System – List of Figures 1-1 Appliance Overview (Exterior) 1 1-2 Appliance Overview (Interior) 2 1-3 Product Dimensions

Technical Information 60 CVA610 Coffee System Figure 5-19: Brew Unit (1) Connection Socket (2) Retaining Screw

Technical Information 61 CVA610 Coffee System 5.24 Brew Unit - Installation Slide the brew unit into position in the appliance until the loc

Technical Information 62 CVA610 Coffee System 3. Pull the brew unit out (Figure 21 – Item 2). 4. Clean the brew unit thoroughly under running w

Technical Information 63 CVA610 Coffee System 5.27 Brew Unit - Degreasing via the Rinse Cycle Note The natural oil found in coffee can cause

Technical Information 64 CVA610 Coffee System 8. Press ENTER. The display will read: A small amount of water will flow out the coffee

Technical Information 65 CVA610 Coffee System 5.28 Brew Unit – Lubrication 1. Remove the Brew Unit. Note  Check that the brew unit is in t

Technical Information 66 CVA610 Coffee System 5.29 Brew Unit – Manual Reset to “Home Position” (Brew Unit not installed in appliance) Ref

Technical Information 67 CVA610 Coffee System 5.30 Brew Unit Creamer Valve - Removal 1. Remove the Brew Unit 2. Remove the output fixing sc

Technical Information 68 CVA610 Coffee System 5.32 Brew Unit Funnel - Removal 1. Remove the Brew Unit from the appliance. 2. Press the funne

Technical Information 69 CVA610 Coffee System 5.33 Brew Unit Ram - Service 1. Remove the Brew Unit from the appliance. 2. Remove the funnel

CVA610 Coffee System – List of Figures (Continued) 4-24 Electronic Board (Layout) 39 5-1 Lid and Securing Screws 41 5-2 Mains Filter Mount

Technical Information 70 CVA610 Coffee System6. Clean the brewing chamber (Figure 32), ram and bottom filter by hand with warm water without det

Technical Information 71 CVA610 Coffee System 5.34 Water Tank Level Indicator Float - Removal 1. Open the door. 2. Remove the Water Tank. 3.

Technical Information 72 CVA610 Coffee System 5.35 Water Tank Valve Sealing Ring - Removal 1. Open the door. 2. Remove the Water Tank.

Technical Information 73 CVA610 Coffee System 5.36 Lower Section of Tank Valve - Removal 1. Open the door. 2. Remove the Water Tank. 3. Li

Technical Information 74 CVA610 Coffee System 5. Remove the Bottom Plate and Drip Tray (5.6 & 5.7) 6. Disconnect the lower part of the va

Technical Information 75 CVA610 Coffee System 5.37 Bean Container - Removal 1. Open the door. 2. Remove the Beans Container end stop screw

Technical Information 76 CVA610 Coffee System 5.38 Bean Container Guide - Removal 1. Open the door. 2. Perform the Beans Container. (5.37) 3

Technical Information 77 CVA610 Coffee System 5.39 Grinder Unit - Disassembly Note The grinder ring (Figure 5-41, Item 5), and grinder cone

Technical Information 78 CVA610 Coffee System 10. Turn the adjustment ring (Figure 5-42, Item 1), counterclockwise until the blue marking alig

Technical Information 79 CVA610 Coffee System 1 Grinding cone fixing screw2 Intake worm gear 3 Washer 4 Adjustment ring 5 Grinding ring 6 Grinding

CVA610 Coffee System – List of Figures (Continued) 5-38 Underside view of the CVA610 74 5-39 Removing the Bean Container 75 5-40 Removin

Technical Information 80 CVA610 Coffee System 5.40 Grinder Unit - Assembly & Basic Setting Refer to Figure 5-43 on the previous page… No

Technical Information 81 CVA610 Coffee System 5.41 Grinder Unit - Removal 1. Open the door. 2. Perform the Beans container removal (5.37).

Technical Information 82 CVA610 Coffee System 11. Remove the plug from the Electronic. 12. Lift the grinder upwards from the dampers (Figure 5-45

Technical Information 83 CVA610 Coffee System 5.42 Brew Unit Present Switch - removal 1. Remove the Top Lid. 2. Remove the Rear Panel. 3. D

Technical Information 84 CVA610 Coffee System 5.45 Brew Unit Drives – Home Positioning 1. Remove the Brew Unit from the appliance. 2. Re-ins

Technical Information 85 CVA610 Coffee System 5.47 Water Path Leakage Test Should water be present in bottom of th

Technical Information 86 CVA610 Coffee System If the steps 1-5 do not disclose any leaks - continue as follows. 6. Fill the Water Tank 7. Plac

Technical Information 87 CVA610 Coffee System 5.49 Water Connections - Fitting 1. Check the Sealing Rings for damage - replace as necessary.

Technical Information 88 CVA610 Coffee System

Technical Information 89 CVA610 Coffee System 6. Fault Diagnosis 6.1 Programming Mode The Programming Mode is available for access by the c