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

6

CANNOT ACCESS THE DIAGNOSTICS PROGRAMME

6.1 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?
Yes ↓
Is the communication wiring between the main
board (connector J10) and the display board
(connector J3) working properly? (insert and
remove)
Yes ↓
Does the programme selector knob function
mechanically?
Yes ↓
Change the main circuit board
Is the appliance working correctly?
Yes ↓
Run the diagnostics programme.
DISPLAY
CIRCUIT BOARD

6.2 Some of the LEDs on the circuit board light up

Are the keys unobstructed through the control
panel slots and do they activate the various
buttons correctly?
Yes ↓
Change the circuit board and run the
diagnostics programme.
Technical Support - A.D.L.
No →
No →
No →
No →
MAIN CIRCUIT
BOARD
No →
25/70
Replace/repair the power supply cable, check
the connection.
Replace/repair wiring.
Replace/repair knob
Replace display board.
Replace display board.
Sort out any mechanical problems
(control panel/buttons/pins).
J4
599 74 23-12 Rev.00