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 EWM0931 Series 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 PCB (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

5.2 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
2010 SOI/DT-mdm FCPD-dp Quality-tb
Guide to diagnostics for electronic controls EWM0931x
MAIN PCB
Replace/repair the power supply cable, check
No →
No →
Replace/repair wiring
Replace/repair knob
No →
Replace display board
No →
Replace display board
Sort out any mechanical problems
No →
(control panel/buttons/pins)
19/67
the connection
J4
599 72 97-24