Ever wonder how to get a Miele CVA615 Coffee System running properly? Fall asleep as Nacy reads to you the technical manual.
Get Bored to sleep as we read to you the technical manual for the Miele CVA615 Coffee System
Welcome to today's triple Z..... The triple Z podcast is a daily recording that you can use to help you fall asleep each night. Just turn down the volume, lay back and enjoy as I bore you to sleep.
Today we are reading the Technical manual for the Miele SVA615 Coffee System. Miele is a German manufacturer of high-end domestic appliances and commercial equipment. The company was founded in 1899 by Carl Miele and Reinhard Zinkann, and has always been a family-owned and family-run company. Miele produces domestic appliances including laundry appliances; vacuum cleaners; dishwashers; rotary irons; built-in convection, steam, and speed ovens; hobs, cooker hoods, cook tops; free-standing and built-in refrigerators, freezers, and wine coolers; and coffee systems
TECHNICAL INFORMATION
SVA615 Coffee System
The appliance comes equipped with a 6 ft (1.8 m) power cord with a NEMA 5-15P molded plug for connection to a 120 Volts 15 Amps 60 Hz power supply.
Refer to the Installation section of the Operating Manual.
1. Place a cup under both coffee dispensing ports.
2. Press the desired size coffee button once. This will start the preparation cycle.
The following message will appear in the message window, depending on the button pressed:
Press any one of the coffee buttons to stop preparation immediately.
Caution
The steam from the appliance is extremely hot: use caution to prevent burns.
• Turn the steam ON by turning the Steam Selector counter- clockwise.
• Turn the steam OFF by turning the Steam Selector clockwise.
Technical Information
Hot Water
1. Place a cup under the hot water dispenser.
2. Press the hot water Button. Hot water will be dispensed.
3. Press the hot water button again to stop the low of hot water.
Slide to the left tor finer grinding
Slide to the right for coarser grinding.
If the espresso flows too quickly into the cup. the beans may have been ground too coarsely. The grinder should be adjusted to a finer setting.
If the espresso only trickles into the cup. the beans may have been ground too fine and the coffee wil be bitter. The grinder should be adjusted to a coarser setting.
If the crema is evenly colored but pale, the ground coffee is too coarse.
If the crema is very dark brown on one side, graduating almost to white on the other, the ground coffee is too fine.
Note You should be able to feel notches when moving the slide control.
If the side control will not move:
Close the machine and dispense a cup of coffee. Then try to move the slide control again.
Filling the Coffee Beans Container
1. Open the appliance door.
2. Carefully slide the container out so that the lid is visible.
3. Lift the lid.
4. Fill the container with coffee beans to about 1* from the top.
5. Close the lid and push the container back into place.
6. Shut the appliance door.
Important
Only put whole espresso or coffee beans the container. Anything else, including ground coffee, hot cocoa, instant coffee, or treated coffee beans (flavorings, caramel, or sugar) will damage the grinder.
Note
Do not remove the coffee bean container from the appliance unless it is completely empty, otherwise coffee beans will spill out.
Filling the Water Tank
The water tank must be washed and filled with fresh drinking water each day. A reminder will appear in the message window when the unit is first turned on.
1. Open the front of the machine.
2. Lift the water tank up and out of the appliance.
3. Open the lid and fill the container with cold drinking water to within about 1 inch of the top.
Important: Never add hot water or any other liquid except cold water to the water tank.
4. Close the lid and place the tank in the machine, pushing it straight back.
5. Close the front of the appliance.
Description of Function
Door Switch
The door switch, removes power to the appliance when the door is opened
Overflow (reed) Switch
The overflow switch is in the lower section of the appliance case. The float with magnet is located in the drip tray. Should a leak develop, water flows into the drip tray. The float with magnet then rises and activates the overflow reed switch which in turn causes the electronic control to switch the unit off.
Brew Unit - Cleaning and Care
The Brew Unit is a mechanically operated component that is subjected to high forces. After a long period of use. the Brew Unit may become dogged. To ensure correct operation of the Brew Unit, it is essential to clean it regularly and apply silicone grease to the moving parts. Refer to section "4 - Maintenance' for further information and procedures.
Brew Unit Removal from the Appliance
The brew unit must be in the home position (see figure 4-2) before it can be removed from the appliance.
Connection of Brew Unit to Drive Mechanism
When the Brew Unit is placed into in the appliance, it locks into position. The locking mechanism Switch Lug (Item 3). activates the Brew Unit Switch (Item 4). The Drive Shaft (Item 6) engages with the Brew Unit Drive Shaft Socket (Item 1). The Nozzle (Item 5). supplies the Brew Unit with hot water under pressure.
When the Brew Unit is in the Brewing position, the socket (Item 2 ). allows hot water to pass through the coffee.
Brewing Procedure
1. The grinder fills the dispenser housing until full (as determined by the dispenser switch).
2. The grinder is then switched off.
3. The dispenser flap opens twice (two clicks) via the dispenser solenoid assembly.
4. The ground coffee then falls into the brew unit via the funnel.
5. The drive tilts the percolator chamber and raises it to the brewing position. The ground coffee is compressed between the Top Filter (Item 2) and Bottom Filter (Item 5).
6. Water then flows through the Water Nozzle Socket. (Item 4). The pump forces the hot water through the Brew Unit and the compressed grounds (Pos 3). Coffee exits the top of Brew Unit via the Outlet (Item 1).
7. As the drive begin lo move back toward the starting, home, position the coffee chamber moves upward and releases the used compressed coffee grounds, puck, Position. 1.
8. The drive continues and returns the brew unit to its starting, or home, position.
Grounds Container
After coffee has been prepared, the coffee grounds compressed puck falls into the waste container. The electronic monitors the number of the compressed pucks. After a specific amount is reached, the message 'Empty waste unit" is displayed.
Waste Unit Present Switch
A reed switch is mounted to the bottom of the housing - as shown in the figure.
The actuating magnet for the Waste Unit switch is fitted in the bottom edge of the container. The electronic monitors whether the waste unit is installed.
When the appliance is placed into the Service Mode, the top line of the display shows the switches that have been activated. A'5" is displayed when the Waste Unit is installed and the switch is actuated. For further information refer to section 6 - Service Mode.
Water Tank
The Water Tank holds the water required for the brewing of the coffee, hot water and steam. When the Water Tank is installed, the sealing ring is pressed upwards allowing water to flow out.
When the tank is removed from the unit, the spring closes the sealing ring to ensure water cannot flow from the tank when it is out of the appliance for filling, etcetera ...
Water Level Switch
The Water Level Switch is located within the housing, as shown in figure 4-10. Item 1.
The actuating magnet for the Water Level Switch is located in the Water Tank as shown below
When the water tank ts installed, and contains at least 30 to 33 ounces of water; the Water Level Switch is activated and its contacts dose.
If the water quantity drops below the minimum quantity, the water level switch is no longer activated and the contacts open.
After the switch opens, the water passing through the water pump is registered via the flowmeter and recorded by the electronic unit as up to 27 ounces of water is still available.
After the 27 ounces is calculated as being used, the display shows Till water tank". To prevent the water pump from running dry. about 3 to 7 ounces of water remains in the tank.
If the appliance is placed into the service mode the top line of the display shows the switches that have been activated. A *7* is displayed when the water tank is installed and filled with water. Refer to section 6 - Service Mode for further information.
Grinder Assembly
The grinding grade depends on the gap between the Grinding Cone and the Grinding Ring. The gap is set via an adjustment Lever fitted to the adjustment ring. The smaller the gap. the finer the coffee grind.
Warning!
To avoid damage to the grinder the grinder should only be adjusted in small steps.
Grinder: Overload Protection
If the grinder becomes blocked, a slip coupling interrupts the drive between the motor and the grinder.
The Grinder Motor (Item 1) drives the mounting (Item 3) via the carriers (Item 2). The rotary force is then transferred via the balls. (Item 5) to the grinder cone (Item 6).
Should the Grinder Cone become blocked the balls are pressed into the mounting, as shown below in figure C. The drive force is interrupted: and the worm gear continues to operate via the mounting.
By adjusting the dispenser lever, the position of the switch slide, in the dispenser container is modified. This changes the volume of the dispenser container and hence the quantity of ground coffee that it can hold before it is full. Each slider setting alters the coffee quantity by approximately .5 grams.
The grinder fills the dispenser container with ground coffee. When the dispenser container is full, the dispensing switch is actuated and the grinder motor is switched off.
To fill the brew unit - the dispensing solenoid is energized twice and the dispenser flap opens twice. The ground coffee drops from the dispenser container into the brew unit.
If the dispenser container is not filled because, there are no coffee beans in the bean holder: the dispenser switch is not activated. The display then shows "Fill coffee beans*.
Dispenser Switch
The service mode can be used to check whether the dispenser switch is activated. With the appliance in the service mode, the top line of the display shows the switches that have been activated.
The "3" indicates that the dispenser container is full / switch is actuated. Refer to section 6 - Service Mode for further information.
When the brew unit is placed in the appliance, 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.
The drive motor (1) is powered by Ihe electronic and turns both the worm gear (3) and the single-stage step-down gear (4). The drive shaft cog gear (5) has two switch actuators for the brew position switch (6) and the home position switch (7). Both switches are monitored by the electronics to determine the position of the brew unit.
Water Pump
The pump is self-priming and can develop a pressure of up to approximately 16 bar. For espresso preparation a pressure of approximately. 8 bar is required so that the water can be forced through the compressed ground coffee. A further increase in pressure does not improve beverage quality.
The pump is fitted with a safety valve which opens at 16 bar system pressure. If pressure is too high, water is passed from the safety valve via a hose
The pump is connected in series with a temperature limiter. The temperature limiter interrupts the power to the pump should a high temperature develop.
Flow Motor
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. Approximately 300 pulses from the flow meter indicate a flow of 3 ounces of water.
The electronic unit controls the required water quantity for beverage preparation and ensures that it remains constant. The service mode can be used to check the proper operation of the flow meter. See section 6 - Service Mode for further information.
Heaters
Flow Through Heaters
The Coffee Flow Through Healer (figure 4-19) has a large healer element; and a small healer element. The Steam Flow Heater has only one heater element (refer to figure 4-20)
Each Flow Through Heater has a Positive Thermal Coefficient (PTC) Temperature Sensor that provides a signal to the electronic unit for temperature control. In addition, a Thermostat is connected in series with the heater element. Should the temperature become too high, the Thermostat interrupts the power to the heater element
As a final measure each heating circuit uses a temperature safety fuse (Figure 20 - Item 3). In the event the temperature became too high due to a fault, this fuse blows and cuts the power being supplied to the heater element. Should this fuse blow, the cause must be located and resolved before the fuse is replaced.
Water Intake
The Pump takes in water from the water tank. The Pump is fitted with a safety valve which opens at approximately 16 bar, or 232 Pe ess Eye, system pressure. If the pressure is too high and the safety valve opens, water is drained off via a hose to the drip tray.
Water Path - Coffee
The water is then pumped under pressure through the Flowmeter, and through the Coffee Flow Through Heater. The water is then passed through the Water Valve, into the Brew Unit.
Water Path - Hot water
The Pump moves water under pressure through the Flowmeter, and through the Coffee Flow Through Heater. The water is then passed via the Hot Water Valve to the Hot Water Outlet.
Water Path - Steam
The pump moves water under pressure via the Flowmeter and through the Coffee Flow Through Heater. When the user selects steam: the Electronic energizes the Steam Valve. Water continues flowing through the Steam Flow Through Heater. Steam is then dispensed from the frothing nozzle.
Water Valve
The Water Valve is attached to the output to the Coffee Hot Water Flow Through Heater. The valve is m a normally closed position.
When the Brew Unit is driven into the brew position the valve mechanically opens and voter is supplied to the Brew Unit. This connection must be air / water tight to prevent air from entering the water path, and / or leakage from the occurring.
The two O-rings that form the seal to the brew unit can be accessed from the front / inside area of the appliance - once the brew unit removed. To access the upper seal, the heater must be removed from the appliance. The Water Valve can be disassembled for service; parts can be replaced individually.
Service and Maintenance
Danger: To avoid the risk of electrical shock, the appliance should Be disconnected from the power source, before any service procedures are performed.
Lid - Removal
1. Remove the Lid Screws, as shown in Figure 5 1.
2. Remove the Lid.
Interference Suppression Filter (Z1) - Removal
1. Perform: Lid removal (5.1).
2. Remove the Mains Filler Nut (Figure 5 2 - Item 1).
3. Remove the Filter.
4. Disconnect the Mams Filter electrical connections
Rear Panel - Removal
1. Remove the lid (5.1).
2. Remove the Mains Filter (5.2).
3. Remove the fixing screws from the rear panel.
4. Disconnect the ground connection from the rear panel.
5. Remove the Rear Panel upwards.
Adjustment Slide Switch Frame - Removal
1. Open the door.
2. Pull off the slide switch knobs.
3. Press the retaining lugs inwards with a small screwdriver
4. Remove the frame.
Door Contact Switch (S24) - Removal
1. Remove the Lid (5.1)
2. Open the door.
3. Disconnect Ihe Door Switch Connections.
4. Press the switch retaining lugs inwards with a small screwdriver.
5. Remove the Door Switch to the front.
Base Plate - Removal
1. Remove the Lid. Mains and Rear Panel (5.11o 5.3)
2. Open the door.
3. Remove the Waste Container.
4. Remove the Water Tank.
5. Check if water is present in the Drip Tray with a linger through the opening under the water container.
6. If water is present, remove it using a suitable device.
7. Remove the Brew Unit.
8. Remove the Coffee Beans from their container.
9. Remove the Base Plate Fixing Screws.
10. Tilt the appliance onto its rear.
11 .Remove the Base Plate and disconnect the ground wire.
Drip Tray - Removal
1. Remove the Lid. Mains and Rear Panel (5.1 lo 5.3)
2. Remove the Base Plate (5.6)
3. Remove the Drip Tray (Figure 5-7).
Overflow Switch Actuator Float - Removal
1. Remove the Lid. Mains and Rear Panel (5.1 to 5.3)
2. Remove the Base Plate (5.6)
Note: Ensure the float in reinstalled in the same direction, as when it was removed.
Overflow Switch (B8/3) - Removal
1. Remove the Lid. Mains and Rear Panel (5.1 to 5.3)
2. Remove the Overflow Switch Fixing Screw (1).
3. Remove the Overflow Switch.
4. Disconnect the Overflow Switch connections from the Electronics.
Rear Door Panel - Removal
1. Open the door.
2. Remove the Upper Rear Panel Fixing Screws (1).
3. Remove the Lower Rear Panel Fixing Screws (2).
1. Open the door.
2. Remove the Rear Door Panel (5.10).
3. Remove the Cover Fixing Screws (3).
4. Remove the cover
Selector Switch - Removal
1. Open the door.
2. Remove the Rear Door Panel and Fascia Panel Cover (5.10 & 5.11).
3. Unplug the electrical connection from the Selector Switch.
4. Remove the Switch Knob (9).
5. Remove the Selector Switch with its housing from the Fascia.
6. Remove the Selector Switch Fixing Screws.
7. Remove the Selector Switch from its Housing.
Display Modulo Electronic - Removal
1. Open the door.
2. Remove the Rear Door Panel and Fascia Panel Cover (5.10 & 5.11).
3. Pull off the Push button Knobs (1).
4. Disconnect the Connections from the Electronics (7).
5. Remove the Electronic Unit Fixing Screws (6).
6. Remove the Electronic Unit.
7. Remove the Display Module Fixing Screws (3).
Coffee Dispensing Nozzle - Removal
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.
4. Remove the white panel.
Note: The two screws for the moveable coffee-dispensing nozzle are on the rear of the dispenser unit.
5. Remove the 2 screws from the Coffee-Dispensing Nozzle by hand.
6. Pull out the hose (6). from the outlet (7).
7. Pull out the moveable coffee dispensing nozzle (9). to its end stop.
8. Unclip the outlet and remove it.
9. Remove the moveable coffee dispensing nozzle.
Coffee Dispensing Nozzle •Installation
1. Slide the outlet (7). onto the connection hose (6).
2. Position the moveable coffee dispensing nozzle. (9). in the cover (10).
3. Clip the outlet (7). in the cover (10).
Note: The two screws for the coffee dispensing nozzle should be tightened by hand only as they can easily be over tightened.
4. Fit the Coffee Dispensing Nozzle in the frame.
5. Install the white panel and screws.
Steam Valve and Steam Valve Switch (S79) - Removal
1. Open the door.
2. Remove the Rear Door Panel and Fascia Panel Cover (5.10 & 5.11).
3. Pull off the Switch Knob (8).
4. Remove the holder fixing screws (3).
5. Remove the holder.
6. Remove the Steam Valve Switch screws (10).
7. Remove the Steam Valve Switch.
8. Disconnect the electrical connections.
Hot Water Nozzle - Removal
Refer to figure 5-16.
1. Open the door.
2. Remove the Rear Door Panel and Fascia Panel Cover (5.10 & 5.11).
3. Loosen the nut (2).
4. Remove the holder (5).
5. Unscrew the sleeve. (1) from the connector (6).
6. Pull out the Hot Water Nozzle (3). from the connector.
Hot Water Valve (Y12)- Removal
1. Open the door.
2. Remove the Rear Door Panel and Fascia Panel Cover (5.10 & 5.11).
3. Disconnect the electrical connection (7).
4. Loosen the Hot Water Valve Nuts.
5. Pull out the Hot Water Valve from the connector (6).
Checking Temperature at Coffee Dispenser
Warning
To avoid adverse operating conditions:
Do Not deviate from the procedure.
Do Not change any other settings or values during this procedure.
1. Set the grinding grade to medium.
2. Set the coffee quantity to medium.
3. Set the Medium Coffee temperature to medium, or standard setting.
4. Turn off the appliance.
5. Press and hold the Small Coffee Button. Large Coffee Button and the Hot Water Button Turn the Selector Switch to the “On with light position"
6. Press the Medium Coffee Button 12 times.
7. Press the Small Coffee Button 1 time.
8. Press the Medium Coffee Button 2 times.
9. Observe the numeric value in the lower right corner of the
display.
If a value of '350' is displayed: proceed to step 14.
If the value is not 350: proceed to step 10.
10. Press the Small Coffee Button 1 time. A blinking box will appear at the end of numeric value.
11. Set the value to "350' as follows
Press the Large Coffee Button to increase the value
Press the Medium Coffee Button to decrease the value
Note: Each press of the Large or Medium Coffee will change the displayed value by 1.
12. Press the Small Coffee Button 1 time, to store the value.
13. Turn the selector switch to the “Off' position.
14. Turn the selector switch to the On or On with Light position.
15. Prepare 4 coffees, medium size, one after the other.
16. When the fourth coffee is being dispensed, hold the sensor probe directly in the flow of coffee. The temperature at the coffee dispenser should be from 171 degrees Fahrenheit to 194 degrees Fahrenheit.
Brew Unit — Removal (in start/homo position)
1. Open the door.
2. Remove the Waste Container.
3. Hold the handle and press on the part marked PRESS.
4. Gently pull outward on the Brew Unit to remove it from the appliance.
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.
Before proceeding close the front door, turn the power on to initiate a drive reset during the start-up sequence.
Once ’Ready..." is displayed: open the front door and attempt to remove the brew unit If the brew unit still cannot be easily removed, perform the following:
1. Open front door - Remove the Waste Container.
2. Locate the Philips screw (Figure 5-17, Item 2).
3. Remove the Philips screw.
4. Use a small flat tip screwdriver to lift up on the kicking tab (Figure 5-18).
5. Grasp the brew unit handle and pull the brew unit out till the connection socket on the brew unit (Figure 5 17. Item 1) unsnaps from the brew unit and remains inside the appliance attached to the water nozzle.
6. Remove the Brew Unit.
7. Slide the connection down to remove it from the appliance.
8. Re-install the connection socket to the Brew Unit.
9. Carefully inspect the drives for defects.
10. Test the Home Position Switch and Brewing Position Switch for proper operation.
Brew Unit - Installation
1. Remove the Waste Container.
2. 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.
Brew Unit - Cleaning Procedure
Note: Clean the Brew Unit by hand only, it SHOULD NOT be cleaned in a dishwasher. Lubricate the Brew Unit with silicon every 500 cups
1. Remove the Waste Container.
Note: The Brew Unit can only be removed after the Waste Container has been removed from the appliance.
2. Grasp the brew unit by the handle and press with the thumb on PRESS". (Figure 5-19. Item 1).
3. Pull outward to remove the Brew Unit (Figure 5-19. 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.
6. Dry the funnel to prevent ground coffee from sticking.
7. After cleaning press "PRESS'.
8. Remove the Waste Container, if re-installed.
9. Push the brew unit in the track straight into the appliance without pressing "PRESS' until it clicks in place (see figure 5-20).
Brew Unit-Filter Cleaning
1. Remove the Brew Unit.
2. Wipe away coffee residues from the steel filter in the funnel of the brew unit with a sponge.
3. The filters can be removed for thorough cleaning.
4. Fit a 5mm Allan Wrench to the connection point in the brew unit.
Turn counterclockwise while supporting the chrome filter from below. Remove the filter by lifting it from the brew unit.
5. Access the second filter by placing a long shaft Philips Screwdriver through the center of the funnel and remove the screw in the center of the filer.
6. Manually move the brew unit into the "brew position".
7. Turn brew upside down - filter will fall exit.
8. Clean both sides of the fitter with hot water and dry.
9 Re-install the second filter back in position.
10 to Manually move the Brew Unit to the "home position*
11 Re-install the Philips screw in the center of the filter.
12 Return the first filter to the brew unit and secure by turning the Allen wrench clockwise.
Brew Unit - Degreasing via the Rinse Cycle
Note: The natural oil found in coffee can cause the Brew Unit to clog. The message '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.
1. Remove the Waste Container.
2. Remove the Brew Unit and put the detergent tablet in the brew unit funnel.
3. Return the brew unit and waste unit to the appliance and close the door.
4. Set a 25-ounce container under the coffee dispensers.
5. Press the rinse/ pre-warm button. (The unit must be pre-heated and ready to use otherwise the button will not respond.)
6. The display will read:
7. Press the down button to select "Rinsing cycle" with the asterisk.
8. Press ENTER. The display will read:
Rinsing cycle.
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.
At the end of the cleaning cycle the display will read:
Select product, ready for use.
The Brew Unit is now clean and ready to use.
Brew Unit - Lubrication
1. Remove the Brew Unit.
Note: Check that the Brew Unit is in the basic position with the funnel slightly lifted and the socket in vertical position.
lubricate the following: Pc Joints, Axel, Tracks, Gasket, Bolt Assembly, Joints
Return the brew unit into the appliance.
Brew Unit - Manual Reset to "Home Position” with brew unit not installed in appliance
1. Press on the latch A: and press the funnel down B.
2. Push the connection piece to the far-left position C.
3. Press the press button once.
4. The 'Home" position (Figure 5-25) after resetting the Brew Unit. The Brew Unit can now be reinstated into the appliance.
Brew Unit Creamer Valve - Removal
1. Remove the Brew Unit
2. Remove the output fixing screws.
3. Remove the output.
4. Remove the spring and Creamer Valve.
5.29 Brew Unit Handle - Removal
1. Remove the Brew Unit from the appliance.
2. Press the handle retaining lugs inwards (Figure 5-26).
3. Remove the handle.
Brew Unit Funnel - Removal
1. Remove the Brew Unit from the appliance.
2. Press the Funnel Locking Lug (Figure 27. Item 1). so that the funnel is no longer raised.
3. Lever the funnel upwards out of its holder (Figure 5-28).
Brew Unit Ram - Service
1. Remove the Brew Unit from the appliance.
2. Remove the tunnel (5.32).
3. Remove the bottom filter screw and filter (Figure 5-29. Items 1 and 2 ).
4. Unclip the lever from the ram.
5. Pull the ram outward to remove from the Brew Unit
6. Clean the brewing chamber (Figure 5-30). ram and bottom filter by hand with warm water without detergent, then dry.
7. Apply silicone grease to the ram lubrication points.
Brew Unit Drives - Service
1. Disconnect the power. Allow the appliance to cool.
2. Remove the Brew Unit from the appliance (5.20 or 5.21)
3. Remove the Waste Container from the appliance.
4. Remove the Beans Container (5.38) and Beans Container Guide (5.39)
5. Remove the Lid (5.1)
6. Remove the Rear Panel (5.3)
Important
Before unplugging any connections, label the plugs and connectors to ensure the wiring is returned to the correct locations during reassembly.
7. Disconnect LI and N from the Door Switch to the Interference Suppressor
8. Disconnect the ground wires from the Cord Socket 1 Terminal Block.
9. Disconnect the following connections from the Power Electronic:
10. Disconnect the following connections from the CPU Electronic:
11 Disconnect the ground connection from the Dispenser Solenoid.
12. Disconnect the ground connection from the Hot Water Heater.
13. Remove the CPU Electronic (with its mounting assembly) and position toward the rear outside of the appliance.
14. Remove the Steam Heater from its mount and position it outside the appliance.
15. Disconnect the Water Intake Connection to the Hot Water, Coffee, Heater.
16. Refer to Figure 5-32. Remove the two Hot Water I Coffee Heater Screws; Separate the Heater from its mounting position.
17. Refer to Figure 5-32. Remove the two 'Cosmetic Fixing' screws. Remove the Cosmetic Fixing from inside the appliance.
18. Refer to Figures 5-33 and 5-34.
19. Remove the two screws and nuts that secure the Grinder Plate Assembly to the top of the Front Plate Assembly.
20. Remove the knobs from the Grinder Slide Controls.
21. Remove the Adjustment Side Switch Frame (5.4).
22. Position the Grinder as necessary to access the Drive Cover and Drive Unit Retaining Screws. Refer to Figure 5-34 for the location of the screws.
23. Remove the two Upper Front Plate Assembly Retaining Screws - as shown in Figure 5-35.
24. Remove all remaining screws from the Front Plate Assembly. Lift upward on the Front Plate Assembly to access the screws near the bottom of the plate. Use Figure 5-32 to locate all screws.
25. Move the Drive Assembly Cover toward the rear wall of the appliance.
26. Move the Drive Assembly back while lifting upward to remove it from the appliance. Use caution - a short length of wiring.
Refer to Figure 5-36. To avoid having to hold the Front Plate Assembly upward while removing the lower screws; a suitable item can be used to temporarily keep the Front Plate Assembly in an elevated position.
Note: Use a suitable item lo keep the Front Plate Assembly open to access the screws at the bottom
27. Position the Drive Assembly so access to the rear cover is possible.
28. Remove the 5 screws that secure the cover.
29. Lift the cover from the Drive Unit.
30. Refer to 4.15 for information on the Drive Assembly.
5.35 Lower Section of Tank Valve - Removal
1. Open the door.
2. Remove the Water Tank.
3. Remove the Lip Seal (5.38).
4. Remove the lower part of the Valve Fixing Screws (Figure 5-40. Item 1).
5. Remove the Bottom Plate and Drip Tray (5.6 & 5.7)
6. Disconnect the lower pair of the valve connections,
7. Remove the lower part of the valve.
Beans Container - Removal
1. Open the door.
2. Remove the Beans Container End Stop Screw (Figure 5-42).
3. Hold a suitable container under the beans container opening to collect the beans, remove the beans container.
Beans Container Guide - Removal
1. Open the door.
2. Perform the 'Beans container removal procedure (5.39).
3. Remove the Waste Container. Brew Unit and Water Tank.
4. Remove the Top Lid (5.1).
5. Remove the guide retaining screws (Figure 5-43. Item 2).
6. Remove the guide and carrier. (Figure 5-43. Item 1).
Note: During installing, first fit the carrier (Figure 43. Item 1). in position and then fit the guide on the carrier.
5.38 Grinder - Disassembly
1. Open the door.
2. Remove the Beans Container (5.39).
3. Remove the Waste Container. Brew Unit and Water Tank.
4. Remove the Top Lid (5.1).
5. Remove the Beans Container Guide (5.40).
6. Set the grinding grade adjustment lever to the mid setting.
7. Pull off the handle (Figure 5-44. Item 1).
8. Remove the Adjustment Lever Fixing Screws (Figure 44. Item 2) and the Adjustment Lever.
9. Turn the Adjustment Ring (Figure 5-45. Item 1), counterclockwise until the blue marking aligns with the blue marking on the carrier (Figure 5-45. Item 2).
10. Remove the bracket (Figure 5-45. Item 3)
11. Remove coffee residues, e.g. with a vacuum cleaner.
Note: The Grinding Cone Fixing Screw has a left-hand thread.
12. Remove the grinding cone fixing screw (Figure 5-46. Item 1) by turning it clockwise.
13. Remove the intake worm gear (Figure 5-46. Item 2).
14. Remove the washer (Figure 46. Item 3).
Note: When the Grinding Cone (Figure 46. Item 6). is removed the balls. (Figure 41. Item 8). may stick to it and then fall off.
15. Remove the Grinding Cone (Item 6).
16. Remove the balls (Item 8).
17. Remove the mounting (Item 7).
18. Remove the springs (Item 9).
19. Remove the carriers (Item 10).
20. Remove the felt ring (Item 11).
5.39 Grinder Assembly - Basic Setting
Note: The Grinder Ring (6). and Grinder Cone. (6). should be replaced together.
1. Install the Felt Ring (11).
2. Install the carriers (10).
3. Install the mounting (7).
4. Install the springs (9).
5. Install the balls (8).
6. Install the Grinding Cone (6). ensure the balls are seated.
7. Install the washer (3).
8. Install the Intake Worm Gear (2). press down and turn until the coupling engages.
9. Tighten the Grinding Cone Screw (1) counterclockwise. Ensure the intake worm gear coupling has engaged property.
Note: Before setting the grinder, remove all coffee from the grinder.
10. Fit the bracket (3).
11 .The blue marking on the carrier (2). has the same position as the blue marking on the adjustment ring (item 1 ); both point toward the front of the appliance.
12. Turn the Adjustment Ring Clockwise as far as possible.
13. Turn the Adjustment Ring Counterclockwise by 6 settings so that the Adjustment Lever can be secured at a mid setting.
14. Fit the Adjustment Lever such that the grinder is set to a medium grinding grade.
15. Tighten the Adjustment Lever Fixing Screws.
16. Push on the handle.
5.40 Grinder Unit - Removal
1. Open the door.
2. Remove the Beans Container (5.39).
3. Remove the Waste Container. Brew Unit and Water Tank.
4. Remove the Top Lid (5.1)
5. Remove the Beans Container Guide (5.40).
6. Remove the Adjustment Side Switch Frame (5.4).
7. Remove the Adjustment Lever Fixing Screws and Lever.
8. Remove the cover fixing screws (Figure 5-47 (4)).
9. Remove the cover.
Note: Mark the polarity of the plug (Figure 48. Item 1). connected to the electronic unit.
10 .Remove the plug from the electronic unit.
11 Lift the grinder upwards from the dampers (Figure 5-48 (21).
Note: When installing the grinder, the dampers should he firmly seated in the mounting pate and motor holder. Ensure the grinder coupling is completely secured so grinder noise is kept to a minimum.
Dispensing Solenoid - Removal
1. Remove the Top Lid (5.1).
2. Remove the Rear Panel (5.3).
3. Remove the Beans Container (5.39).
4. Remove the Beans Container Guide (5.40).
5. Press the retainers outward.
6. Slide the Dispensing Solenoid upward out of the guide.
7. Disconnect the electrical connections.
Dispenser Switch - Removal
1. Remove the Top Lid (5.1).
2. Remove the Rear Panel (5.3).
3. Remove the Beans Container (5.39).
4. Remove the Beans Container Guide (5.40).
5. Remove the Dispensing Solenoid (5.43)
6. Press the retainers outwards. Remove the switch.
7. Disconnect the electrical connections.
Water path & Flowmeter - Testing
Caution: Hot water will flow from the waterspout during this procedure
1. Fill the water reservoir
2. Place the appliance into the Service Mode with the Selector Knob in the Programming position, (refer to section 6 for further information on service mode access)
3. Press and hold all three coffee buttons: the display shows the following:
567, 34
Does a pulsing, flickering, eight appear in the top line of the display?
Yes or no?
Normal Operation - Proceed to step 6.
Does water flow from the Hot Water Spout?
No
The water is not liming through the water path - check pump operation and water path for obstructions.
Correct fault & repeat lest starting at step 1 .
YES
Unplug JP 25 from the CPU Electronic
Place a jumper between pin 2 & 3
Place the appliance into the Service Mode with the Selector Knob in the Programming position
Does the display show a solid eight in the top line of the display?
NO
Replace the electronic
YES
Replace the flow meter
4. Release all three coffee buttons.
5. Remove the jumper and reconnect JP 25
6. Press and hold all three coffee buttons. Observe the number displayed in the bottom right of the display (see figure 5-50). Is the displayed value 30 or higher?
NO, YES
Normal Operation
Ensure.
Sufficient water is present, The water path is clear, Water lines are not emptied
Heaters, flowmeter, etcetera, freely pass water
Water valves fully open
Water line connections are fit and do not leak
Water Path Leakage Test
In the event water is present in bottom of the appliance, or a leak is suspected; the following procedure will help in locating the source of the leak.
Heaters can be hot during this test and hot water may escape from the system
1. Fill the Water reservoir completely
2. Place the appliance into the Service Mode with the Selector Knob in the Programming position, refer to section 6 for further information on service mode access.
3. Press and hold all three coffee buttons - check for signs of leakage, dripping, squirting etcetera.
4. Release the three coffee buttons to end the test, If the steps 1-5 does not disclose any leaks - continue as follows.
5. Fill the Water reservoir completely
6. Place the appliance into the Service Mode
7. Quickly turn the selector knob to the 'Operation' position
8. Press and hold all three coffee buttons for 30 seconds
9. Quickly turn the selector knob to the 'Programming' position
10. Press and hold all three coffee buttons - check for signs of leakage, dripping, squirting etcetera.
11. Release the three coffee buttons to end the test
Water Path Connections - Opening
Danger! Risk of burning or scalding! Components may be hot. Pressurized steam may exist in the system. Before any service work is performed, allow time to cool.
1. Remove the retaining spring (Item 1).
2. Pull out the hose from the connector.
3. Remove the sealing rings (Item 2).
Water Path Connections - Closing
1. Check the sealing rings for damage and replace as necessary.
2. Fit the sealing rings on the hose.
3. Insert the hose in the connector.
4. Fit the retaining spring behind the pressed-on ring.
5. As a check, pull on the hose. It should not be possible to pull the hose out of the connector.
6. Fault Diagnosis
Programming Mode
The Programming Mode is designed or access Dy the customer to or changes various setting and change features. To access the Programming Mode, simply turn the selector knob to the "Program Mode" position
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 (or accessed by qualified service personnel.
Initial requirements
Switch off the appliance
Ensure the front door is dosed
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...
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)
Drip tray filled, water system fault
Service Mode - Navigation
Displays Water Temperature for Water Heater and Steam Heater in Celsius.
Displays firmware version
Drive motor ON till Brew
Position Switch is contacted
Drive motor ON (reverse direction) till Home Switch is contacted
Grinder ON
Senser ON
Hot Water, Coffee Side Heater Element ON
Hot Water, Coffee Upper Heater Element ON
Displayed Messages
Brew Unit Blocked:
The brew unit is dirty.
The brew unit is blocked.
The brew unit is Jammed.
Clean, inspect brew unit, check drives
Expel Air:
Air is present with the water system -
Perform "Expel Air* procedure.
The bean container is empty OR The grinder may be jammed.
Fill coffee beans
Add coffee beans to the bean’s container.
Clean the conical grinder, top of grinder
Brew Unit Missing:
Brew unit is not installed OR not installed correctly.
Reinstall the brew unit
Check brew unit present switch
Descaling
Perform the Descale Procedure.
Waste unit is not installed
Waste unit missing:
Re-install the waste unit
Check magnet on rear of waste unit
Check brew unit present switch
Standby:
The appliance is in the energy saving
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.
Check level switch for proper operation
The water tank level switch is not actuated - water lank float is below the switch level
Fill Water Tank:
Refill the water tank
Check that float and switch operate
Empty Water tank:
Check that flowmeter is plugged into the correct position
Warming Up:
Appliance is warming up.
Fault Diagnosis
When two cups of coffee/espresso are being prepared at the same time, the cups are filled unevenly.
Appliance is not level: Level the appliance.
Coffee nozzle is dirty: Clean the coffee nozzle.
Brew Unit Can't be Removed from the Appliance.
The brew unit is not in the starting (home) position. Reset the brew unit to the starting (home) position.
The brew unit is jammed and cannot be removed by reselling the appliance (i.e. shutting the door and turning on the power).
Perform the manual removal procedure.
Inspect the brew unit and/or drives to locate fault.
Brew Unit Cannot be Installed
The part marked PRESS was pressed during installation of the Brew Unit.
Do not press the part marked PRESS when installing the Brew Unit, this only apples during Brew Unit removal.
The Brew Unit is not in the starting, home position.
Perform a manual resetting of the Brew Unit.
The drive shaft is not in the starting (home) position.
Reset the Brew Unit to the starting (home) position via the Service Mode.
Carefully inspect the Brew Unit and/or drives to locate fault, such as a defective switch, etcetera.)
Grinding grade cannot be set finer (adjustment lever appears jammed)
Ground coffee is between the grinding ring and grinding cone. The ground coffee prevents the gap between the grinding ring and grinding cone from being reduced.
Perform the following:
1. Set the adjustment lever to the finest setting possible.
2. Prepare a coffee.
4. Set the adjustment lever to a finer setting.
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Today we are reading the Technical manual for the Miele SVA615 Coffee System. Miele is a German manufacturer of high-end domestic appliances and commercial equipment. The company was founded in 1899 by Carl Miele and Reinhard Zinkann, and has always been a family-owned and family-run company. Miele produces domestic appliances including laundry appliances; vacuum cleaners; dishwashers; rotary irons; built-in convection, steam, and speed ovens; hobs, cooker hoods, cook tops; free-standing and built-in refrigerators, freezers, and wine coolers; and coffee systems
TECHNICAL INFORMATION
SVA615 Coffee System
The appliance comes equipped with a 6 ft (1.8 m) power cord with a NEMA 5-15P molded plug for connection to a 120 Volts 15 Amps 60 Hz power supply.
Refer to the Installation section of the Operating Manual.
1. Place a cup under both coffee dispensing ports.
2. Press the desired size coffee button once. This will start the preparation cycle.
The following message will appear in the message window, depending on the button pressed:
Press any one of the coffee buttons to stop preparation immediately.
Caution
The steam from the appliance is extremely hot: use caution to prevent burns.
• Turn the steam ON by turning the Steam Selector counter- clockwise.
• Turn the steam OFF by turning the Steam Selector clockwise.
Technical Information
Hot Water
1. Place a cup under the hot water dispenser.
2. Press the hot water Button. Hot water will be dispensed.
3. Press the hot water button again to stop the low of hot water.
Slide to the left tor finer grinding
Slide to the right for coarser grinding.
If the espresso flows too quickly into the cup. the beans may have been ground too coarsely. The grinder should be adjusted to a finer setting.
If the espresso only trickles into the cup. the beans may have been ground too fine and the coffee wil be bitter. The grinder should be adjusted to a coarser setting.
If the crema is evenly colored but pale, the ground coffee is too coarse.
If the crema is very dark brown on one side, graduating almost to white on the other, the ground coffee is too fine.
Note You should be able to feel notches when moving the slide control.
If the side control will not move:
Close the machine and dispense a cup of coffee. Then try to move the slide control again.
Filling the Coffee Beans Container
1. Open the appliance door.
2. Carefully slide the container out so that the lid is visible.
3. Lift the lid.
4. Fill the container with coffee beans to about 1* from the top.
5. Close the lid and push the container back into place.
6. Shut the appliance door.
Important
Only put whole espresso or coffee beans the container. Anything else, including ground coffee, hot cocoa, instant coffee, or treated coffee beans (flavorings, caramel, or sugar) will damage the grinder.
Note
Do not remove the coffee bean container from the appliance unless it is completely empty, otherwise coffee beans will spill out.
Filling the Water Tank
The water tank must be washed and filled with fresh drinking water each day. A reminder will appear in the message window when the unit is first turned on.
1. Open the front of the machine.
2. Lift the water tank up and out of the appliance.
3. Open the lid and fill the container with cold drinking water to within about 1 inch of the top.
Important: Never add hot water or any other liquid except cold water to the water tank.
4. Close the lid and place the tank in the machine, pushing it straight back.
5. Close the front of the appliance.
Description of Function
Door Switch
The door switch, removes power to the appliance when the door is opened
Overflow (reed) Switch
The overflow switch is in the lower section of the appliance case. The float with magnet is located in the drip tray. Should a leak develop, water flows into the drip tray. The float with magnet then rises and activates the overflow reed switch which in turn causes the electronic control to switch the unit off.
Brew Unit - Cleaning and Care
The Brew Unit is a mechanically operated component that is subjected to high forces. After a long period of use. the Brew Unit may become dogged. To ensure correct operation of the Brew Unit, it is essential to clean it regularly and apply silicone grease to the moving parts. Refer to section "4 - Maintenance' for further information and procedures.
Brew Unit Removal from the Appliance
The brew unit must be in the home position (see figure 4-2) before it can be removed from the appliance.
Connection of Brew Unit to Drive Mechanism
When the Brew Unit is placed into in the appliance, it locks into position. The locking mechanism Switch Lug (Item 3). activates the Brew Unit Switch (Item 4). The Drive Shaft (Item 6) engages with the Brew Unit Drive Shaft Socket (Item 1). The Nozzle (Item 5). supplies the Brew Unit with hot water under pressure.
When the Brew Unit is in the Brewing position, the socket (Item 2 ). allows hot water to pass through the coffee.
Brewing Procedure
1. The grinder fills the dispenser housing until full (as determined by the dispenser switch).
2. The grinder is then switched off.
3. The dispenser flap opens twice (two clicks) via the dispenser solenoid assembly.
4. The ground coffee then falls into the brew unit via the funnel.
5. The drive tilts the percolator chamber and raises it to the brewing position. The ground coffee is compressed between the Top Filter (Item 2) and Bottom Filter (Item 5).
6. Water then flows through the Water Nozzle Socket. (Item 4). The pump forces the hot water through the Brew Unit and the compressed grounds (Pos 3). Coffee exits the top of Brew Unit via the Outlet (Item 1).
7. As the drive begin lo move back toward the starting, home, position the coffee chamber moves upward and releases the used compressed coffee grounds, puck, Position. 1.
8. The drive continues and returns the brew unit to its starting, or home, position.
Grounds Container
After coffee has been prepared, the coffee grounds compressed puck falls into the waste container. The electronic monitors the number of the compressed pucks. After a specific amount is reached, the message 'Empty waste unit" is displayed.
Waste Unit Present Switch
A reed switch is mounted to the bottom of the housing - as shown in the figure.
The actuating magnet for the Waste Unit switch is fitted in the bottom edge of the container. The electronic monitors whether the waste unit is installed.
When the appliance is placed into the Service Mode, the top line of the display shows the switches that have been activated. A'5" is displayed when the Waste Unit is installed and the switch is actuated. For further information refer to section 6 - Service Mode.
Water Tank
The Water Tank holds the water required for the brewing of the coffee, hot water and steam. When the Water Tank is installed, the sealing ring is pressed upwards allowing water to flow out.
When the tank is removed from the unit, the spring closes the sealing ring to ensure water cannot flow from the tank when it is out of the appliance for filling, etcetera ...
Water Level Switch
The Water Level Switch is located within the housing, as shown in figure 4-10. Item 1.
The actuating magnet for the Water Level Switch is located in the Water Tank as shown below
When the water tank ts installed, and contains at least 30 to 33 ounces of water; the Water Level Switch is activated and its contacts dose.
If the water quantity drops below the minimum quantity, the water level switch is no longer activated and the contacts open.
After the switch opens, the water passing through the water pump is registered via the flowmeter and recorded by the electronic unit as up to 27 ounces of water is still available.
After the 27 ounces is calculated as being used, the display shows Till water tank". To prevent the water pump from running dry. about 3 to 7 ounces of water remains in the tank.
If the appliance is placed into the service mode the top line of the display shows the switches that have been activated. A *7* is displayed when the water tank is installed and filled with water. Refer to section 6 - Service Mode for further information.
Grinder Assembly
The grinding grade depends on the gap between the Grinding Cone and the Grinding Ring. The gap is set via an adjustment Lever fitted to the adjustment ring. The smaller the gap. the finer the coffee grind.
Warning!
To avoid damage to the grinder the grinder should only be adjusted in small steps.
Grinder: Overload Protection
If the grinder becomes blocked, a slip coupling interrupts the drive between the motor and the grinder.
The Grinder Motor (Item 1) drives the mounting (Item 3) via the carriers (Item 2). The rotary force is then transferred via the balls. (Item 5) to the grinder cone (Item 6).
Should the Grinder Cone become blocked the balls are pressed into the mounting, as shown below in figure C. The drive force is interrupted: and the worm gear continues to operate via the mounting.
By adjusting the dispenser lever, the position of the switch slide, in the dispenser container is modified. This changes the volume of the dispenser container and hence the quantity of ground coffee that it can hold before it is full. Each slider setting alters the coffee quantity by approximately .5 grams.
The grinder fills the dispenser container with ground coffee. When the dispenser container is full, the dispensing switch is actuated and the grinder motor is switched off.
To fill the brew unit - the dispensing solenoid is energized twice and the dispenser flap opens twice. The ground coffee drops from the dispenser container into the brew unit.
If the dispenser container is not filled because, there are no coffee beans in the bean holder: the dispenser switch is not activated. The display then shows "Fill coffee beans*.
Dispenser Switch
The service mode can be used to check whether the dispenser switch is activated. With the appliance in the service mode, the top line of the display shows the switches that have been activated.
The "3" indicates that the dispenser container is full / switch is actuated. Refer to section 6 - Service Mode for further information.
When the brew unit is placed in the appliance, 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.
The drive motor (1) is powered by Ihe electronic and turns both the worm gear (3) and the single-stage step-down gear (4). The drive shaft cog gear (5) has two switch actuators for the brew position switch (6) and the home position switch (7). Both switches are monitored by the electronics to determine the position of the brew unit.
Water Pump
The pump is self-priming and can develop a pressure of up to approximately 16 bar. For espresso preparation a pressure of approximately. 8 bar is required so that the water can be forced through the compressed ground coffee. A further increase in pressure does not improve beverage quality.
The pump is fitted with a safety valve which opens at 16 bar system pressure. If pressure is too high, water is passed from the safety valve via a hose
The pump is connected in series with a temperature limiter. The temperature limiter interrupts the power to the pump should a high temperature develop.
Flow Motor
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. Approximately 300 pulses from the flow meter indicate a flow of 3 ounces of water.
The electronic unit controls the required water quantity for beverage preparation and ensures that it remains constant. The service mode can be used to check the proper operation of the flow meter. See section 6 - Service Mode for further information.
Heaters
Flow Through Heaters
The Coffee Flow Through Healer (figure 4-19) has a large healer element; and a small healer element. The Steam Flow Heater has only one heater element (refer to figure 4-20)
Each Flow Through Heater has a Positive Thermal Coefficient (PTC) Temperature Sensor that provides a signal to the electronic unit for temperature control. In addition, a Thermostat is connected in series with the heater element. Should the temperature become too high, the Thermostat interrupts the power to the heater element
As a final measure each heating circuit uses a temperature safety fuse (Figure 20 - Item 3). In the event the temperature became too high due to a fault, this fuse blows and cuts the power being supplied to the heater element. Should this fuse blow, the cause must be located and resolved before the fuse is replaced.
Water Intake
The Pump takes in water from the water tank. The Pump is fitted with a safety valve which opens at approximately 16 bar, or 232 Pe ess Eye, system pressure. If the pressure is too high and the safety valve opens, water is drained off via a hose to the drip tray.
Water Path - Coffee
The water is then pumped under pressure through the Flowmeter, and through the Coffee Flow Through Heater. The water is then passed through the Water Valve, into the Brew Unit.
Water Path - Hot water
The Pump moves water under pressure through the Flowmeter, and through the Coffee Flow Through Heater. The water is then passed via the Hot Water Valve to the Hot Water Outlet.
Water Path - Steam
The pump moves water under pressure via the Flowmeter and through the Coffee Flow Through Heater. When the user selects steam: the Electronic energizes the Steam Valve. Water continues flowing through the Steam Flow Through Heater. Steam is then dispensed from the frothing nozzle.
Water Valve
The Water Valve is attached to the output to the Coffee Hot Water Flow Through Heater. The valve is m a normally closed position.
When the Brew Unit is driven into the brew position the valve mechanically opens and voter is supplied to the Brew Unit. This connection must be air / water tight to prevent air from entering the water path, and / or leakage from the occurring.
The two O-rings that form the seal to the brew unit can be accessed from the front / inside area of the appliance - once the brew unit removed. To access the upper seal, the heater must be removed from the appliance. The Water Valve can be disassembled for service; parts can be replaced individually.
Service and Maintenance
Danger: To avoid the risk of electrical shock, the appliance should Be disconnected from the power source, before any service procedures are performed.
Lid - Removal
1. Remove the Lid Screws, as shown in Figure 5 1.
2. Remove the Lid.
Interference Suppression Filter (Z1) - Removal
1. Perform: Lid removal (5.1).
2. Remove the Mains Filler Nut (Figure 5 2 - Item 1).
3. Remove the Filter.
4. Disconnect the Mams Filter electrical connections
Rear Panel - Removal
1. Remove the lid (5.1).
2. Remove the Mains Filter (5.2).
3. Remove the fixing screws from the rear panel.
4. Disconnect the ground connection from the rear panel.
5. Remove the Rear Panel upwards.
Adjustment Slide Switch Frame - Removal
1. Open the door.
2. Pull off the slide switch knobs.
3. Press the retaining lugs inwards with a small screwdriver
4. Remove the frame.
Door Contact Switch (S24) - Removal
1. Remove the Lid (5.1)
2. Open the door.
3. Disconnect Ihe Door Switch Connections.
4. Press the switch retaining lugs inwards with a small screwdriver.
5. Remove the Door Switch to the front.
Base Plate - Removal
1. Remove the Lid. Mains and Rear Panel (5.11o 5.3)
2. Open the door.
3. Remove the Waste Container.
4. Remove the Water Tank.
5. Check if water is present in the Drip Tray with a linger through the opening under the water container.
6. If water is present, remove it using a suitable device.
7. Remove the Brew Unit.
8. Remove the Coffee Beans from their container.
9. Remove the Base Plate Fixing Screws.
10. Tilt the appliance onto its rear.
11 .Remove the Base Plate and disconnect the ground wire.
Drip Tray - Removal
1. Remove the Lid. Mains and Rear Panel (5.1 lo 5.3)
2. Remove the Base Plate (5.6)
3. Remove the Drip Tray (Figure 5-7).
Overflow Switch Actuator Float - Removal
1. Remove the Lid. Mains and Rear Panel (5.1 to 5.3)
2. Remove the Base Plate (5.6)
Note: Ensure the float in reinstalled in the same direction, as when it was removed.
Overflow Switch (B8/3) - Removal
1. Remove the Lid. Mains and Rear Panel (5.1 to 5.3)
2. Remove the Overflow Switch Fixing Screw (1).
3. Remove the Overflow Switch.
4. Disconnect the Overflow Switch connections from the Electronics.
Rear Door Panel - Removal
1. Open the door.
2. Remove the Upper Rear Panel Fixing Screws (1).
3. Remove the Lower Rear Panel Fixing Screws (2).
1. Open the door.
2. Remove the Rear Door Panel (5.10).
3. Remove the Cover Fixing Screws (3).
4. Remove the cover
Selector Switch - Removal
1. Open the door.
2. Remove the Rear Door Panel and Fascia Panel Cover (5.10 & 5.11).
3. Unplug the electrical connection from the Selector Switch.
4. Remove the Switch Knob (9).
5. Remove the Selector Switch with its housing from the Fascia.
6. Remove the Selector Switch Fixing Screws.
7. Remove the Selector Switch from its Housing.
Display Modulo Electronic - Removal
1. Open the door.
2. Remove the Rear Door Panel and Fascia Panel Cover (5.10 & 5.11).
3. Pull off the Push button Knobs (1).
4. Disconnect the Connections from the Electronics (7).
5. Remove the Electronic Unit Fixing Screws (6).
6. Remove the Electronic Unit.
7. Remove the Display Module Fixing Screws (3).
Coffee Dispensing Nozzle - Removal
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.
4. Remove the white panel.
Note: The two screws for the moveable coffee-dispensing nozzle are on the rear of the dispenser unit.
5. Remove the 2 screws from the Coffee-Dispensing Nozzle by hand.
6. Pull out the hose (6). from the outlet (7).
7. Pull out the moveable coffee dispensing nozzle (9). to its end stop.
8. Unclip the outlet and remove it.
9. Remove the moveable coffee dispensing nozzle.
Coffee Dispensing Nozzle •Installation
1. Slide the outlet (7). onto the connection hose (6).
2. Position the moveable coffee dispensing nozzle. (9). in the cover (10).
3. Clip the outlet (7). in the cover (10).
Note: The two screws for the coffee dispensing nozzle should be tightened by hand only as they can easily be over tightened.
4. Fit the Coffee Dispensing Nozzle in the frame.
5. Install the white panel and screws.
Steam Valve and Steam Valve Switch (S79) - Removal
1. Open the door.
2. Remove the Rear Door Panel and Fascia Panel Cover (5.10 & 5.11).
3. Pull off the Switch Knob (8).
4. Remove the holder fixing screws (3).
5. Remove the holder.
6. Remove the Steam Valve Switch screws (10).
7. Remove the Steam Valve Switch.
8. Disconnect the electrical connections.
Hot Water Nozzle - Removal
Refer to figure 5-16.
1. Open the door.
2. Remove the Rear Door Panel and Fascia Panel Cover (5.10 & 5.11).
3. Loosen the nut (2).
4. Remove the holder (5).
5. Unscrew the sleeve. (1) from the connector (6).
6. Pull out the Hot Water Nozzle (3). from the connector.
Hot Water Valve (Y12)- Removal
1. Open the door.
2. Remove the Rear Door Panel and Fascia Panel Cover (5.10 & 5.11).
3. Disconnect the electrical connection (7).
4. Loosen the Hot Water Valve Nuts.
5. Pull out the Hot Water Valve from the connector (6).
Checking Temperature at Coffee Dispenser
Warning
To avoid adverse operating conditions:
Do Not deviate from the procedure.
Do Not change any other settings or values during this procedure.
1. Set the grinding grade to medium.
2. Set the coffee quantity to medium.
3. Set the Medium Coffee temperature to medium, or standard setting.
4. Turn off the appliance.
5. Press and hold the Small Coffee Button. Large Coffee Button and the Hot Water Button Turn the Selector Switch to the “On with light position"
6. Press the Medium Coffee Button 12 times.
7. Press the Small Coffee Button 1 time.
8. Press the Medium Coffee Button 2 times.
9. Observe the numeric value in the lower right corner of the
display.
If a value of '350' is displayed: proceed to step 14.
If the value is not 350: proceed to step 10.
10. Press the Small Coffee Button 1 time. A blinking box will appear at the end of numeric value.
11. Set the value to "350' as follows
Press the Large Coffee Button to increase the value
Press the Medium Coffee Button to decrease the value
Note: Each press of the Large or Medium Coffee will change the displayed value by 1.
12. Press the Small Coffee Button 1 time, to store the value.
13. Turn the selector switch to the “Off' position.
14. Turn the selector switch to the On or On with Light position.
15. Prepare 4 coffees, medium size, one after the other.
16. When the fourth coffee is being dispensed, hold the sensor probe directly in the flow of coffee. The temperature at the coffee dispenser should be from 171 degrees Fahrenheit to 194 degrees Fahrenheit.
Brew Unit — Removal (in start/homo position)
1. Open the door.
2. Remove the Waste Container.
3. Hold the handle and press on the part marked PRESS.
4. Gently pull outward on the Brew Unit to remove it from the appliance.
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.
Before proceeding close the front door, turn the power on to initiate a drive reset during the start-up sequence.
Once ’Ready..." is displayed: open the front door and attempt to remove the brew unit If the brew unit still cannot be easily removed, perform the following:
1. Open front door - Remove the Waste Container.
2. Locate the Philips screw (Figure 5-17, Item 2).
3. Remove the Philips screw.
4. Use a small flat tip screwdriver to lift up on the kicking tab (Figure 5-18).
5. Grasp the brew unit handle and pull the brew unit out till the connection socket on the brew unit (Figure 5 17. Item 1) unsnaps from the brew unit and remains inside the appliance attached to the water nozzle.
6. Remove the Brew Unit.
7. Slide the connection down to remove it from the appliance.
8. Re-install the connection socket to the Brew Unit.
9. Carefully inspect the drives for defects.
10. Test the Home Position Switch and Brewing Position Switch for proper operation.
Brew Unit - Installation
1. Remove the Waste Container.
2. 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.
Brew Unit - Cleaning Procedure
Note: Clean the Brew Unit by hand only, it SHOULD NOT be cleaned in a dishwasher. Lubricate the Brew Unit with silicon every 500 cups
1. Remove the Waste Container.
Note: The Brew Unit can only be removed after the Waste Container has been removed from the appliance.
2. Grasp the brew unit by the handle and press with the thumb on PRESS". (Figure 5-19. Item 1).
3. Pull outward to remove the Brew Unit (Figure 5-19. 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.
6. Dry the funnel to prevent ground coffee from sticking.
7. After cleaning press "PRESS'.
8. Remove the Waste Container, if re-installed.
9. Push the brew unit in the track straight into the appliance without pressing "PRESS' until it clicks in place (see figure 5-20).
Brew Unit-Filter Cleaning
1. Remove the Brew Unit.
2. Wipe away coffee residues from the steel filter in the funnel of the brew unit with a sponge.
3. The filters can be removed for thorough cleaning.
4. Fit a 5mm Allan Wrench to the connection point in the brew unit.
Turn counterclockwise while supporting the chrome filter from below. Remove the filter by lifting it from the brew unit.
5. Access the second filter by placing a long shaft Philips Screwdriver through the center of the funnel and remove the screw in the center of the filer.
6. Manually move the brew unit into the "brew position".
7. Turn brew upside down - filter will fall exit.
8. Clean both sides of the fitter with hot water and dry.
9 Re-install the second filter back in position.
10 to Manually move the Brew Unit to the "home position*
11 Re-install the Philips screw in the center of the filter.
12 Return the first filter to the brew unit and secure by turning the Allen wrench clockwise.
Brew Unit - Degreasing via the Rinse Cycle
Note: The natural oil found in coffee can cause the Brew Unit to clog. The message '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.
1. Remove the Waste Container.
2. Remove the Brew Unit and put the detergent tablet in the brew unit funnel.
3. Return the brew unit and waste unit to the appliance and close the door.
4. Set a 25-ounce container under the coffee dispensers.
5. Press the rinse/ pre-warm button. (The unit must be pre-heated and ready to use otherwise the button will not respond.)
6. The display will read:
7. Press the down button to select "Rinsing cycle" with the asterisk.
8. Press ENTER. The display will read:
Rinsing cycle.
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.
At the end of the cleaning cycle the display will read:
Select product, ready for use.
The Brew Unit is now clean and ready to use.
Brew Unit - Lubrication
1. Remove the Brew Unit.
Note: Check that the Brew Unit is in the basic position with the funnel slightly lifted and the socket in vertical position.
lubricate the following: Pc Joints, Axel, Tracks, Gasket, Bolt Assembly, Joints
Return the brew unit into the appliance.
Brew Unit - Manual Reset to "Home Position” with brew unit not installed in appliance
1. Press on the latch A: and press the funnel down B.
2. Push the connection piece to the far-left position C.
3. Press the press button once.
4. The 'Home" position (Figure 5-25) after resetting the Brew Unit. The Brew Unit can now be reinstated into the appliance.
Brew Unit Creamer Valve - Removal
1. Remove the Brew Unit
2. Remove the output fixing screws.
3. Remove the output.
4. Remove the spring and Creamer Valve.
5.29 Brew Unit Handle - Removal
1. Remove the Brew Unit from the appliance.
2. Press the handle retaining lugs inwards (Figure 5-26).
3. Remove the handle.
Brew Unit Funnel - Removal
1. Remove the Brew Unit from the appliance.
2. Press the Funnel Locking Lug (Figure 27. Item 1). so that the funnel is no longer raised.
3. Lever the funnel upwards out of its holder (Figure 5-28).
Brew Unit Ram - Service
1. Remove the Brew Unit from the appliance.
2. Remove the tunnel (5.32).
3. Remove the bottom filter screw and filter (Figure 5-29. Items 1 and 2 ).
4. Unclip the lever from the ram.
5. Pull the ram outward to remove from the Brew Unit
6. Clean the brewing chamber (Figure 5-30). ram and bottom filter by hand with warm water without detergent, then dry.
7. Apply silicone grease to the ram lubrication points.
Brew Unit Drives - Service
1. Disconnect the power. Allow the appliance to cool.
2. Remove the Brew Unit from the appliance (5.20 or 5.21)
3. Remove the Waste Container from the appliance.
4. Remove the Beans Container (5.38) and Beans Container Guide (5.39)
5. Remove the Lid (5.1)
6. Remove the Rear Panel (5.3)
Important
Before unplugging any connections, label the plugs and connectors to ensure the wiring is returned to the correct locations during reassembly.
7. Disconnect LI and N from the Door Switch to the Interference Suppressor
8. Disconnect the ground wires from the Cord Socket 1 Terminal Block.
9. Disconnect the following connections from the Power Electronic:
10. Disconnect the following connections from the CPU Electronic:
11 Disconnect the ground connection from the Dispenser Solenoid.
12. Disconnect the ground connection from the Hot Water Heater.
13. Remove the CPU Electronic (with its mounting assembly) and position toward the rear outside of the appliance.
14. Remove the Steam Heater from its mount and position it outside the appliance.
15. Disconnect the Water Intake Connection to the Hot Water, Coffee, Heater.
16. Refer to Figure 5-32. Remove the two Hot Water I Coffee Heater Screws; Separate the Heater from its mounting position.
17. Refer to Figure 5-32. Remove the two 'Cosmetic Fixing' screws. Remove the Cosmetic Fixing from inside the appliance.
18. Refer to Figures 5-33 and 5-34.
19. Remove the two screws and nuts that secure the Grinder Plate Assembly to the top of the Front Plate Assembly.
20. Remove the knobs from the Grinder Slide Controls.
21. Remove the Adjustment Side Switch Frame (5.4).
22. Position the Grinder as necessary to access the Drive Cover and Drive Unit Retaining Screws. Refer to Figure 5-34 for the location of the screws.
23. Remove the two Upper Front Plate Assembly Retaining Screws - as shown in Figure 5-35.
24. Remove all remaining screws from the Front Plate Assembly. Lift upward on the Front Plate Assembly to access the screws near the bottom of the plate. Use Figure 5-32 to locate all screws.
25. Move the Drive Assembly Cover toward the rear wall of the appliance.
26. Move the Drive Assembly back while lifting upward to remove it from the appliance. Use caution - a short length of wiring.
Refer to Figure 5-36. To avoid having to hold the Front Plate Assembly upward while removing the lower screws; a suitable item can be used to temporarily keep the Front Plate Assembly in an elevated position.
Note: Use a suitable item lo keep the Front Plate Assembly open to access the screws at the bottom
27. Position the Drive Assembly so access to the rear cover is possible.
28. Remove the 5 screws that secure the cover.
29. Lift the cover from the Drive Unit.
30. Refer to 4.15 for information on the Drive Assembly.
5.35 Lower Section of Tank Valve - Removal
1. Open the door.
2. Remove the Water Tank.
3. Remove the Lip Seal (5.38).
4. Remove the lower part of the Valve Fixing Screws (Figure 5-40. Item 1).
5. Remove the Bottom Plate and Drip Tray (5.6 & 5.7)
6. Disconnect the lower pair of the valve connections,
7. Remove the lower part of the valve.
Beans Container - Removal
1. Open the door.
2. Remove the Beans Container End Stop Screw (Figure 5-42).
3. Hold a suitable container under the beans container opening to collect the beans, remove the beans container.
Beans Container Guide - Removal
1. Open the door.
2. Perform the 'Beans container removal procedure (5.39).
3. Remove the Waste Container. Brew Unit and Water Tank.
4. Remove the Top Lid (5.1).
5. Remove the guide retaining screws (Figure 5-43. Item 2).
6. Remove the guide and carrier. (Figure 5-43. Item 1).
Note: During installing, first fit the carrier (Figure 43. Item 1). in position and then fit the guide on the carrier.
5.38 Grinder - Disassembly
1. Open the door.
2. Remove the Beans Container (5.39).
3. Remove the Waste Container. Brew Unit and Water Tank.
4. Remove the Top Lid (5.1).
5. Remove the Beans Container Guide (5.40).
6. Set the grinding grade adjustment lever to the mid setting.
7. Pull off the handle (Figure 5-44. Item 1).
8. Remove the Adjustment Lever Fixing Screws (Figure 44. Item 2) and the Adjustment Lever.
9. Turn the Adjustment Ring (Figure 5-45. Item 1), counterclockwise until the blue marking aligns with the blue marking on the carrier (Figure 5-45. Item 2).
10. Remove the bracket (Figure 5-45. Item 3)
11. Remove coffee residues, e.g. with a vacuum cleaner.
Note: The Grinding Cone Fixing Screw has a left-hand thread.
12. Remove the grinding cone fixing screw (Figure 5-46. Item 1) by turning it clockwise.
13. Remove the intake worm gear (Figure 5-46. Item 2).
14. Remove the washer (Figure 46. Item 3).
Note: When the Grinding Cone (Figure 46. Item 6). is removed the balls. (Figure 41. Item 8). may stick to it and then fall off.
15. Remove the Grinding Cone (Item 6).
16. Remove the balls (Item 8).
17. Remove the mounting (Item 7).
18. Remove the springs (Item 9).
19. Remove the carriers (Item 10).
20. Remove the felt ring (Item 11).
5.39 Grinder Assembly - Basic Setting
Note: The Grinder Ring (6). and Grinder Cone. (6). should be replaced together.
1. Install the Felt Ring (11).
2. Install the carriers (10).
3. Install the mounting (7).
4. Install the springs (9).
5. Install the balls (8).
6. Install the Grinding Cone (6). ensure the balls are seated.
7. Install the washer (3).
8. Install the Intake Worm Gear (2). press down and turn until the coupling engages.
9. Tighten the Grinding Cone Screw (1) counterclockwise. Ensure the intake worm gear coupling has engaged property.
Note: Before setting the grinder, remove all coffee from the grinder.
10. Fit the bracket (3).
11 .The blue marking on the carrier (2). has the same position as the blue marking on the adjustment ring (item 1 ); both point toward the front of the appliance.
12. Turn the Adjustment Ring Clockwise as far as possible.
13. Turn the Adjustment Ring Counterclockwise by 6 settings so that the Adjustment Lever can be secured at a mid setting.
14. Fit the Adjustment Lever such that the grinder is set to a medium grinding grade.
15. Tighten the Adjustment Lever Fixing Screws.
16. Push on the handle.
5.40 Grinder Unit - Removal
1. Open the door.
2. Remove the Beans Container (5.39).
3. Remove the Waste Container. Brew Unit and Water Tank.
4. Remove the Top Lid (5.1)
5. Remove the Beans Container Guide (5.40).
6. Remove the Adjustment Side Switch Frame (5.4).
7. Remove the Adjustment Lever Fixing Screws and Lever.
8. Remove the cover fixing screws (Figure 5-47 (4)).
9. Remove the cover.
Note: Mark the polarity of the plug (Figure 48. Item 1). connected to the electronic unit.
10 .Remove the plug from the electronic unit.
11 Lift the grinder upwards from the dampers (Figure 5-48 (21).
Note: When installing the grinder, the dampers should he firmly seated in the mounting pate and motor holder. Ensure the grinder coupling is completely secured so grinder noise is kept to a minimum.
Dispensing Solenoid - Removal
1. Remove the Top Lid (5.1).
2. Remove the Rear Panel (5.3).
3. Remove the Beans Container (5.39).
4. Remove the Beans Container Guide (5.40).
5. Press the retainers outward.
6. Slide the Dispensing Solenoid upward out of the guide.
7. Disconnect the electrical connections.
Dispenser Switch - Removal
1. Remove the Top Lid (5.1).
2. Remove the Rear Panel (5.3).
3. Remove the Beans Container (5.39).
4. Remove the Beans Container Guide (5.40).
5. Remove the Dispensing Solenoid (5.43)
6. Press the retainers outwards. Remove the switch.
7. Disconnect the electrical connections.
Water path & Flowmeter - Testing
Caution: Hot water will flow from the waterspout during this procedure
1. Fill the water reservoir
2. Place the appliance into the Service Mode with the Selector Knob in the Programming position, (refer to section 6 for further information on service mode access)
3. Press and hold all three coffee buttons: the display shows the following:
567, 34
Does a pulsing, flickering, eight appear in the top line of the display?
Yes or no?
Normal Operation - Proceed to step 6.
Does water flow from the Hot Water Spout?
No
The water is not liming through the water path - check pump operation and water path for obstructions.
Correct fault & repeat lest starting at step 1 .
YES
Unplug JP 25 from the CPU Electronic
Place a jumper between pin 2 & 3
Place the appliance into the Service Mode with the Selector Knob in the Programming position
Does the display show a solid eight in the top line of the display?
NO
Replace the electronic
YES
Replace the flow meter
4. Release all three coffee buttons.
5. Remove the jumper and reconnect JP 25
6. Press and hold all three coffee buttons. Observe the number displayed in the bottom right of the display (see figure 5-50). Is the displayed value 30 or higher?
NO, YES
Normal Operation
Ensure.
Sufficient water is present, The water path is clear, Water lines are not emptied
Heaters, flowmeter, etcetera, freely pass water
Water valves fully open
Water line connections are fit and do not leak
Water Path Leakage Test
In the event water is present in bottom of the appliance, or a leak is suspected; the following procedure will help in locating the source of the leak.
Heaters can be hot during this test and hot water may escape from the system
1. Fill the Water reservoir completely
2. Place the appliance into the Service Mode with the Selector Knob in the Programming position, refer to section 6 for further information on service mode access.
3. Press and hold all three coffee buttons - check for signs of leakage, dripping, squirting etcetera.
4. Release the three coffee buttons to end the test, If the steps 1-5 does not disclose any leaks - continue as follows.
5. Fill the Water reservoir completely
6. Place the appliance into the Service Mode
7. Quickly turn the selector knob to the 'Operation' position
8. Press and hold all three coffee buttons for 30 seconds
9. Quickly turn the selector knob to the 'Programming' position
10. Press and hold all three coffee buttons - check for signs of leakage, dripping, squirting etcetera.
11. Release the three coffee buttons to end the test
Water Path Connections - Opening
Danger! Risk of burning or scalding! Components may be hot. Pressurized steam may exist in the system. Before any service work is performed, allow time to cool.
1. Remove the retaining spring (Item 1).
2. Pull out the hose from the connector.
3. Remove the sealing rings (Item 2).
Water Path Connections - Closing
1. Check the sealing rings for damage and replace as necessary.
2. Fit the sealing rings on the hose.
3. Insert the hose in the connector.
4. Fit the retaining spring behind the pressed-on ring.
5. As a check, pull on the hose. It should not be possible to pull the hose out of the connector.
6. Fault Diagnosis
Programming Mode
The Programming Mode is designed or access Dy the customer to or changes various setting and change features. To access the Programming Mode, simply turn the selector knob to the "Program Mode" position
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 (or accessed by qualified service personnel.
Initial requirements
Switch off the appliance
Ensure the front door is dosed
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...
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)
Drip tray filled, water system fault
Service Mode - Navigation
Displays Water Temperature for Water Heater and Steam Heater in Celsius.
Displays firmware version
Drive motor ON till Brew
Position Switch is contacted
Drive motor ON (reverse direction) till Home Switch is contacted
Grinder ON
Senser ON
Hot Water, Coffee Side Heater Element ON
Hot Water, Coffee Upper Heater Element ON
Displayed Messages
Brew Unit Blocked:
The brew unit is dirty.
The brew unit is blocked.
The brew unit is Jammed.
Clean, inspect brew unit, check drives
Expel Air:
Air is present with the water system -
Perform "Expel Air* procedure.
The bean container is empty OR The grinder may be jammed.
Fill coffee beans
Add coffee beans to the bean’s container.
Clean the conical grinder, top of grinder
Brew Unit Missing:
Brew unit is not installed OR not installed correctly.
Reinstall the brew unit
Check brew unit present switch
Descaling
Perform the Descale Procedure.
Waste unit is not installed
Waste unit missing:
Re-install the waste unit
Check magnet on rear of waste unit
Check brew unit present switch
Standby:
The appliance is in the energy saving
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.
Check level switch for proper operation
The water tank level switch is not actuated - water lank float is below the switch level
Fill Water Tank:
Refill the water tank
Check that float and switch operate
Empty Water tank:
Check that flowmeter is plugged into the correct position
Warming Up:
Appliance is warming up.
Fault Diagnosis
When two cups of coffee/espresso are being prepared at the same time, the cups are filled unevenly.
Appliance is not level: Level the appliance.
Coffee nozzle is dirty: Clean the coffee nozzle.
Brew Unit Can't be Removed from the Appliance.
The brew unit is not in the starting (home) position. Reset the brew unit to the starting (home) position.
The brew unit is jammed and cannot be removed by reselling the appliance (i.e. shutting the door and turning on the power).
Perform the manual removal procedure.
Inspect the brew unit and/or drives to locate fault.
Brew Unit Cannot be Installed
The part marked PRESS was pressed during installation of the Brew Unit.
Do not press the part marked PRESS when installing the Brew Unit, this only apples during Brew Unit removal.
The Brew Unit is not in the starting, home position.
Perform a manual resetting of the Brew Unit.
The drive shaft is not in the starting (home) position.
Reset the Brew Unit to the starting (home) position via the Service Mode.
Carefully inspect the Brew Unit and/or drives to locate fault, such as a defective switch, etcetera.)
Grinding grade cannot be set finer (adjustment lever appears jammed)
Ground coffee is between the grinding ring and grinding cone. The ground coffee prevents the gap between the grinding ring and grinding cone from being reduced.
Perform the following:
1. Set the adjustment lever to the finest setting possible.
2. Prepare a coffee.
4. Set the adjustment lever to a finer setting.
