Guide to diagnostics of EWX11831 electronic controls
2013 TS/DT-mdm FCPD-dp
19/71
599 77 00-82 Rev. 01
5 CANNOT ACCESS THE DIAGNOSTICS PROGRAMME
5.1 None of the LEDs on the circuit board light up
Y
E
S
NO
NO
NO
NO
Are the power supply cable and the connection on
the main board (connector
J1
)
working properly?
Replace/repair the power supply cable, check the
connection
Is the communication wiring between the main
board (connector
J19
) and the display board
(connectors
J2
and
J4
) working properly? (insert
and remove)
Replace/repair wiring
Does the ON/OFF button function mechanically?
Replace/repair the button or
replace the display board
Change the main circuit board
Is the appliance working correctly?
Replace display board
Run the diagnostics programme.
DISPLAY
CIRCUIT BOARD
MAIN CIRCUIT
BOARD
GENERAL EARTHING
J1
Y
E
S
Y
E
S
Y
E
S