Electrolux EWM09312 Service Manual page 41

E43: Problems with the component (Triac) controlling the door
E43
Checks to perform:
To check the wiring, keep the
door open and measure
between the following wiring
connectors (see fig. 4):
- between wire J5-2 and J5-3,
the circuit must NOT be open
(measure the resistance
value of the PTC).
- between wire J5-1 and J5-2,
the circuit must be OPEN.
Is the system ok?
YES
Replace the circuit board and
repeat the diagnostic cycle to
check for any further alarms.
J14 J5
J4
GND
Fig. 4
MAIN CIRCUIT BOARD
n Ω
∞
Ω
2012 SOE/DT-mdm FCPD-dp
Guide to diagnostics of EWM09312 electronic controls
delay system
(device with 3 connections and no flange)
the component (see fig. 28):
NO
between connector J5 (main
circuit board) and the door lock
J13 J8 J7
J11 J10
J6
∞
Ω
n
Ω
!
Check that all the connectors are correctly inserted
Disconnect the door lock
connectors and measure on
- between connectors 3 and
5, the circuit must NOT be
open (measure the
resistance value of the
PTC).
- between connectors 4 and
5, the circuit must be OPEN
(the numbers are printed on
the component).
Is the door interlock ok?
YES
Measure the continuity
connector
Is the wiring ok?
YES
Replace the circuit board and repeat the diagnostic
cycle to check for any further alarms.
Fig. 28
41/69
Replace the door
lock and repeat
the diagnostic
NO
cycle to check for
any further
alarms.
Replace the
wiring and repeat
the diagnostic
NO
cycle to check for
any further
alarms
If there are burns on the circuit board,
!
see page 67
599 75 18-74 Rev.00
E43