Electrolux W4105N, Service Manual

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6211
5190
3
4
3
K21
1
2
4 5
6
Program unit
The control panel contains a program knob and
a display. The panel can also be equipped with
two preset buttons.
The control panel and display are used by:
• the user to select the machine’s fixed wash
programs, to select up to two options for
each wash program and for information on
the wash process and any fault indicators.
• service personnel for navigation and control
of the program unit’s service program.
• programming personnel for setting and pro -
gram adjustment in the program unit’s soft -
ware.
If present, the preset buttons are used for direct
start of two preset wash programs.
Using information on torque values from the
motor, the weight of each wash is measured
before each wash program in order to adapt the
amount of water used for washing.
The program unit controls the water valves, drain
valve and heating via an I/O board in the rear
electrical module. Control signals to external
units, such as detergent pumps or external water
valves can also be engaged here.
3
4
Program unit
1. Program unit A1
2. I/O-board A11,
Outputs for water, detergent and drain.
3. Heater element
4 Water valves
5. Drain valve
6. Power supply
Machine presentation