Technical Information
28
CVA 610/CVA 615 Coffee Systems
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.”
4.13 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 6.2.
4.14 Brew Unit Drives
The brew unit locks into position against the drives mounting plate. The locking
mechanism switch lug (Figure 4-16, Item 3) activates the brew unit present switch
(Figure 4-16, Item 4). The drive shaft (Figure 4-16, Item 6) engages with the brew
unit drive shaft socket.
Figure 4-16: Brew Unit Drive Assembly, Water Connection and Present Switch
The drive motor (Figure 4-17, Item 4) is powered by the electronic and turns both the
worm gear (Figure 4-17, Item 3) and the (smaller) step-down gear. The drive action
is transferred from the step-down gear to the (larger) drive gear. The center of the
drive gear contains the drive shaft, which connects to the brew unit drive shaft
socket. The drive gear has two switch actuators (Figure 4-17, Items 2 and 5) for the
brew position and home position switches (Figure 4-17, Items 1 and 7). Both
1 Drive shaft socket
2 Socket
3 Locking mechanism & switch lug
4 Brew unit present switch
5 Coffee/hot-water heater nozzle
6 Drive shaft
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