Electronic Control; Programming/Updating The Main Circuit Board - Electrolux EWF1284EDW Service Manual

10.6 Electronic control

The electronic control is made up of:
1. Main electronic circuit board
2. Control/display circuit board
The control/display PCB contains: the selector used to select the washing programme, the LCD display to show
information on the programme, but buttons used to adjust the temperature, the spin speed and optionally to
select an option, the START/PAUSE button and finally the ON/OFF button.
The commands acquired by the display board (by turning the selector, selecting an option, etc...) are sent to the
main circuit board, which powers all the electrical components (cold water solenoid valve, drain pump, heating
element, door safety interlock, etc.) and:
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 flow of water through the solenoid valve via the flowmeter.
At the same time it controls their operation to guarantee proper performance of the washing cycle.

10.6.1 Programming/Updating the main circuit board

Any programming/updating/diagnostics operation carried out with the board
If one of these operations is accidentally carried out when plugged in to the
In the Service Notes the main circuit board (587) is identified with two spare parts codes:
 Code 973 914... identifies the pre-programmed board.
 Code 132... identifies the unprogrammed board.
The circuit board can be programmed/updated using the
Sidekick application.
For further information, please refer to the instructions
provided/illustrated in the course entitled << Sidekick Guide
>> at the link (http://electrolux.edvantage.net) on the
Electrolux Learning Gateway portal.
To update/program the main board, insert the Sidekick connector in the position
shown by the red arrow:
Technical Support - MDM
installed on the appliance and the mains plug disconnected from the
socket.
socket, on completing the operation, the appliance will remain turned
off when restarting; disconnect the plug from the socket and wait at
least 40 minutes before starting up the appliance (any operation will
only create further delay).
EWM09
312
587
47/97
1
2
587
EWX13
599 76 11-68 Rev. 01