Technical Support - DMM
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599 77 23-65 Rev. 03
12.7 Electronic control
The electronic control is made up of:
1. Main electronic circuit board
2. Control/display circuit board
3. INVERTER motor control board (not shown in the figure, positioned
at the bottom right of the appliance seen from the rear).
The control/display PCB contains: the selector dial, to select the washing programme, the LCD display, to display
the programme information; the buttons to adjust the temperature, the spin speed and possibly select an option,
the Start/PAUSE button and lastly the ON/OFF button (in SERIES 9, there is only the ON/OFF button as the
other buttons have been replaced by touch sensors).
The commands received by the display board (by turning the selector dial, selecting an option, etc…) are sent
to the main circuit board, which powers all the electrical components (cold and hot water solenoid valve - where
featured, motor control board - Inverter, drain pump, circulation pump - where featured, heating element, door
safety interlock, drum light).
It controls the level of water via the analogue pressure switch.
It controls the state of the door.
It controls the speed of the motor.
It controls the temperature of the wash water via the NTC probe inserted in the heating element.
It controls the voltage and frequency of the power supply and ensures they are close to the rated ones.
It controls the weight of the laundry in the drum, via the weight sensor.
It controls the flow of water through the solenoid valve via the flowmeter.
It simultaneously controls their functioning to guarantee the correct performance of the washing cycle.
2
1
Serie 9
Serie 8
Serie 7
Hot water
solenoid
Display board
Main board
Drain
pump
NTC
Door safety
interlock
Heating element
Motor
Circulation
pump
Aqua control
sensor
Cold water
solenoid
Inverter
Flowmeter NTC
Weight sensor
Drum light
Pressure switch
