E43: Problems With The Component (Triac) Controlling The Door Delay System (Device With 4 Connections) - Electrolux EWM10931 Service Manual

E43: Problems with the component (triac) controlling the
E43
Checks to perform:
To check the wiring, measure, with
the door open, between the following
wiring connectors -(fig.4)-:
- between J5-1 and J5-3, the circuit
must NOT be open (measure the
resistance value of the PTC).
- between J5-1 and J5-4, 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?
Y
E
S
Replace the circuit board and repeat
the diagnostic cycle to check for any
further alarms.
Fig. 9
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2011 SOE/DT-mdm FCPD-dp Quality-tb
Guide to diagnostics of electronic controls EWM10931
door delay system (device with 4 connections)
NO
∞ Ω
1
4
MAIN CIRCUIT
BOARD
!
Check that all the connectors are correctly inserted
Disconnect the door lock
connectors and measure on
the component:
- between connectors 3 and
4, the circuit must NOT be
open (measure the
resistance value of the PTC).
- between connectors 2 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 lock ok? -(fig.9)-
Y
E
S
Measure the continuity
between connector J5
(main circuit board) and the
door lock connector.
Is the wiring ok?
Y
E
S
Replace the circuit board
and repeat the diagnostic
cycle to check for any
further alarms.
Door Lock
(Instantaneous)
!
36/75
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.
∞ Ω
n Ω
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If there are burns on the circuit
board, see page 73
599 73 77-37
E43