Electrolux EWM09312 Service Manual page 42

E43: Problems with the component (Triac) controlling the door delay
E43
To check the wiring, with the
door open, measure on the
following wiring connectors
(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.
Fig. 4
n Ω
∞
Ω
Technical Support - A.D.L.
(device with 3 connections)
NO
MAIN CIRCUITBOARD
∞
Ω
n
Door Lock
Ω
traditional
with flange
system
!
Check that all the connectors are correctly inserted
Detach the connectors and
measure on the component
(Fig. 9):
- between connectors 3 and 4,
the circuit must not be open
(measure the resistance value
of the PTC).
- on the other hand, 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
between connector J5 (main
circuit board) and the door lock
connector
Is the wiring ok?
YES
Replace the circuit board and repeat the diagnostic
cycle to check for any further alarms.
42/70
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 68
599 74 23-12 Rev.00
E43
Fig. 9