Electrolux EWM09312 Service Manual page 59

E91: Communication error between the display board and the main
E91
Inconsistency between configuration values on starting the appliance
Check the wiring between the main circuit
board and the display board:
► Detach and reconnect the connectors
on both boards several times.
► Measure the continuity between
connector J10 (main circuit board)
(display board).
Is the wiring ok?
Replace the main circuit board and repeat
the diagnostic cycle to check for any
further alarms.
Is the appliance still displaying E91?
Replace the display board and repeat the
diagnostic cycle to check for any further
alarms.
If there are burns on the circuit board,
!
see page 68
Technical Support - A.D.L.
circuit board
and J3
Y
E
S
Y
E
S
Replace / repair the wiring and repeat the
diagnostic cycle to check for any further
NO
Appliance ok
NO
DISPLAY
CIRCUIT BOARD
59/70
alarms.
DISPLAY
CIRCUIT
BOARD
0Ω
599 74 23-12 Rev.00
E91