Cannot Access The Diagnostics Programme; None Of The Leds On The Circuit Board Light Up - Electrolux EWM09312 Service Manual

5 CANNOT ACCESS THE DIAGNOSTICS PROGRAMME

5.1 None of the LEDs on the circuit board light up

Are the power supply cable and the connection
on the main board (connector J4)
working properly?
Is the communication wiring between the main
board (connector J10) and the display board
(connector J3) working properly? (insert and
remove)
Does the programme selector knob function
mechanically?
Change the main circuit board
Is the appliance working correctly?
Run the diagnostics programme.
DISPLAY
CIRCUIT BOARD
2012 SOE/DT-mdm FCPD-dp
Guide to diagnostics of EWM09312 electronic controls
Y
E
S
Y
E
S
Y
E
S
Y
E
S
MAIN CIRCUIT
BOARD
Replace/repair the power supply cable,
NO
check the connection
Replace/repair wiring
NO
Replace/repair knob
NO
Replace display board
Replace display board
NO
19/69
J4
599 75 18-74 Rev.00