Manuals / Miele / Kitchen Appliance / Coffeemaker

Miele CVA615 6.2Service Mode, Initial requirements, Access, Acknowledgement Indicator, 567 2128

Models: CVA615

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6.2Service Mode

CVA615 Coffee System

Technical Information

6.2Service 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.

Initial requirements

Switch off the appliance

Ensure the front door is closed

Access

1.Press and hold the SMALL COFFEE button and the HOT WATER button.

2.Refer to the Service Mode chart on the following page… turn the selector knob to the desired position.

3.Release the SMALL COFFEE and HOT WATER buttons.

4.Press the applicable button to activate the function listed.

Acknowledgement Indicator

The following is an example indicates the appliance is in the Service Mode:

567

2128

Electronic

Version

The display indicates the switches currently actuated.

1.Brewing position switch (brew unit drives)

2.Home position switch (brew unit drives)

3.Dispenser switch

4.Steam valve switch

5.Waste container present switch

6.Brew unit present switch

7.Water tank level switch

8.Flow meter pulse (not always displayed)

A. Drip tray filled (water system fault)

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Miele CVA615 manual 6.2Service Mode, Initial requirements, Access, Acknowledgement Indicator, 567 2128

Contents

2007 Miele USA TECHNICAL INFORMATION CVA615 Coffee SystemCVA615 Coffee System – Table of Contents Service and Maintenance Fault Diagnosis CVA615 Coffee System – List of Figures CVA615 Coffee System – List of Figures continued Figure 5-43:Beans Container Guide CVA615 Coffee System – List of Figures continuedCVA615 Coffee System CVA615 Coffee System – List of TablesTable 6-2:Service Mode Navigation Table 6-1:Programming Mode NavigationCVA615 Coffee System Technical Information 1.0Construction and Design1.1Appliance Overview 2Coffee Dispensers Height-AdjustableFigure 1-2: CVA Controls 1.1.2Controls1.1.3Interior Front of Appliance Opened CVA615 Coffee System Technical InformationCVA615 Coffee System Technical Information 1.2Technical DataProduct Dimensions Electrical Information12Steam Solenoid Valve 13Power Electronic Board 1.3Layout of Components6Drive Assembly Mounted to Wall 7Drive Assembly Cover 8Hot Water / Coffee Heater2.0Installation CVA615 Coffee System Technical InformationFigure 2-1: Operating Manual 3.1General Operation 3.0Commission and OperationFigure 3-5: Steam Selector 3.1.2Canceling the PreparationFigure 3-4: Canceling the Preparation Process 3.1.3Steam Control3.1.4Hot Water Controls 3.1.5Adjusting the Coffee Grinder3.1.6Filling the Coffee Beans Container 3.1.7Filling the Water Tank 4.1Door Switch 4.2Overflow Reed Switch4.0Description of Function 4.3Brew Unit – Cleaning and Care 4.4Brew Unit Removal from the ApplianceFigure 4-2: Brew Unit in “Home” Position Operation 4.5Connection of Brew Unit to Drive Mechanism4.6Brewing Procedure 4Water Nozzle Socket 5Bottom Filter CVA615 Coffee System Technical InformationFigure 4-5: Brew Unit Components 1Outlet 2Top Filter 3Compressed CoffeeRefer to Figure 4-6– Brew Unit, Showing Compressed Coffee “Puck” 4.8Waste Unit Present Switch 4.7Grounds ContainerFigure 4-7: Waste Unit Present Switch 1 Magnet for Present Switch Actuation CVA615 Coffee System Technical InformationFigure 4-8: Waste Unit 4.9Water Tank 4.10Water Level Switch Figure 4-10: Water Level SwitchFigure 4-11: Water Level Switch Float When the water tank is installed, and contains at least 30-33ounces of water; the Water Level Switch is activated and its contacts close 4.11Grinder Assembly Figure 4-12: Grinder AssemblyCVA615 Coffee System Technical Information Refer to Figure 4-12– Grinder Assembly 6Grinding Cone 7Washer 8Intake Worm Gear 4.12Grinder – Overload ProtectionCVA615 Coffee System Technical Information 1Grinder Motor 2Carrier 3Mounting 4Spring 5BallCForce Transfer Interrupted ANormal Operation BOverload Protection ActivatedFigure 4-15: Coffee Dispensing Components 4.13Ground Coffee Dispensing4.14Dispenser Switch 1Brew Unit Drive Shaft Socket 2Socket 4.15Brew Unit Drives3Locking Mechanism Switch Lug 4Switch – Brew Unit Present SwitchRefer to Figure 4-18– Brew Unit Drive Assembly Coffee / Hot Water Heater 1R1 & 1R2 4.16Water Pump4.17Flow Meter 4.18HeatersFigure 4-19: Hot Water / Coffee Heater 4.19Flow Through Heaters1Heater Element 2Thermal Fuse 3Thermostat 4Temperature Sensor PTCCVA615 Coffee System Technical Information Figure 4-20: Steam Heater4.20Water Path CVA615 Coffee System Technical InformationFigure 4-21: Water Path 4.20.4Water Path – Steam 4.20.1Water Intake4.20.2Water Path - Coffee 4.20.3Water Path – Hot WaterFigure 4-22: Water Valve Disassembled 4.21Water Valve4.22Electronic Assemblies 4.22.1Power ElectronicCVA615 Coffee System Technical Information 4.22.2CPU Electronic CVA615 Coffee System Technical InformationFigure 4-24: CPU Control Electronic 5.0Service and Maintenance 5.1Lid - RemovalCVA615 Coffee System Technical Information 5.3Rear Panel - Removal 5.2Interference Suppression Filter Z1 - RemovalCVA615 Coffee System Technical Information 5.4Adjustment Slide Switch Frame - Removal1.Open the door 2.Pull off the slide switch knobs 4.Remove the frame5.Remove the Door Switch to the front 5.5Door Contact Switch S24 - RemovalRefer to Figure 5-5– Door Switch 3.Disconnect the Door Switch Connections5.6Base Plate - Removal CVA615 Coffee System Technical Information 5.7Drip Tray - Removal2.Remove the Base Plate – Refer to Section 3.Remove the Drip Tray - Refer to Figure3. Remove the float 5.8Overflow Switch Actuator Float - Removal1Overflow Switch Float 2.Remove the Base Plate – Refer to SectionCVA615 Coffee System Technical Information 5.9Overflow Switch B8/3 - Removal2.Remove the Overflow Switch Fixing Screw Item 3.Remove the Overflow Switch3.Remove the Lower Rear Panel Fixing Screws Item 5.10Rear Door Panel - Removal1.Open the door 2.Remove the Upper Rear Panel Fixing Screws Item3.Remove the Cover Fixing Screws Item 5.11Fascia Panel Cover - Removal1.Open the door 2.Remove the Rear Door Panel – Refer to Section5.12Selector Switch - Removal 5.13Display Module Electronic - Removal 5.14Coffee Dispensing Nozzle - Removal 5.15Coffee Dispensing Nozzle - Installation 1.Open the door 5.18Hot Water Valve Y12 - Removal 5.17Hot Water Nozzle - Removal5.19Checking Temperature at Coffee Dispenser 5.20Brew Unit – Removal in Start/Home Position 5.21Brew Unit – Removal NOTin Start/Home Position CVA615 Coffee System Technical Information Figure 5-17: Brew Unit1Connection Socket 2Retaining Screw 5.23Brew Unit – Cleaning Procedure 5.22Brew Unit - Installation5.24Brew Unit – Filter Cleaning RINSING RINSING CYCLE 5.25Brew Unit – Degreasing via the Rinse CycleSELECT PRODUCT READY FOR USE RINSING CYCLE5.26Brew Unit - Lubrication Refer to Figure 5.29Brew Unit Handle - Removal 5.28Brew Unit Creamer Valve - Removal5.30Brew Unit Funnel - Removal 5.31Brew Unit Ram - Service Figure 5-31: Ram Assembly CVA615 Coffee System Technical Information1Filter Screw 2Filter 3Lubrication Points 5.32Brew Unit Drives - Service 16.Refer to Figure 5-32– Front Plate Assembly with Retaining Screws Locations. Remove the two Hot Water / Coffee Heater Screws; Separate the Heater from its mounting position CVA615 Coffee System Technical Information Figure 5-33: Grinder Retaining ScrewsFigure 5-34: Grinder Retaining Nuts 21.Remove the Adjustment Slide Switch Frame Service Tip 4.Remove the Water Tank Float 5.33Water Tank Float - Removal1.Open the door 2.Remove the Water Tank 3.Remove the cap from the Water Tank3.Lever off the Lip Seal Cap 5.34Water Tank Lip Seal - Removal1.Open the door 2.Remove the Water Tank – Refer to Section3.Remove the Lip Seal Refer to Figure 5.35Lower Section of Tank Valve - Removal1.Open the door 2.Remove the Water Tank – Refer to Section5.Remove the Bottom Plate and Drip Tray 7.Remove the lower part of the valveCVA615 Coffee System Technical Information 5.36Beans Container - Removal 1.Open the doorCVA615 Coffee System Technical Information 5.37Beans Container Guide - Removal 5.38Grinder - Disassembly 10.Remove the bracket Figure 5-45,Item Refer to Figure 5-46– Grinder – Apart 5.39Grinder Assembly – Basic Setting 5.40Grinder Unit - Removal 5.41Dispensing Solenoid - Removal 5.42Dispenser Switch - Removal5678 34 5.43Waterpath & Flowmeter - Testing4.Release all three coffee buttons 5.44Water Path Leakage Test 5.46Water Path Connections - Closing 5.45Water Path Connections - Opening6.1Programming Mode 6.0Fault DiagnosisInitial requirements 6.2Service ModeAccess Acknowledgement IndicatorCVA615 Coffee System Technical Information Service Mode - NavigationInformation 6.3Displayed MessagesCVA615 Coffee System Technical Information Displayed MessageDisplayed Message The level switch has been actuated by water beingCVA615 Coffee System Technical Information6.4Fault Diagnosis Brew Unit cannot be installedBrew Unit cannot be removed from the appliance Perform the following