E42: Problems With Door Aperture (4- Contact Device) - Electrolux EWM2100 Service Manual

E42: Problems with door aperture (4- contact device)

E42
Instantaneous door interlock
device with 4 Connections.
- fig 28 -
YES
To check the wiring (with the door
open), measure the following
wiring connectors (fig. 4):
- between wires J1-3 and J1-1, the
circuit must NOT be open
(Measure the resistive value of the
PTC).
- between wires J1-1 and J1-4, the
circuit must NOT be open
(Measure the resistive value of the
PTC).
- between wires J1-1 and J1-2, the
circuit must must be OPEN.
Is the system OK?
YES
Check for mechanical coupling
between the door interlock and the
door natch. Is the system OK?
YES
Replace the door interlock.
Is the machine working correctly?
YES
Restart the diagnostic cycle to
check for further alarms.
03-2009 SOI/DT-mdm FCPD-dp Quality-fz
Maximum time exceeded (5 pulses for instantaneous)
measure on the component:
- across connectors 3 and 4
open (Measure the resistive
- across connectors 2 and 4
NO
open (Measure the resistive
- across connectors 4 and 5
(the numbers are printed on
Measure the continuity across
connector J1 (PCB) and the
Replace the circuit board and
restart the diagnostic cycle to
NO
Replace the door natch/the
Replace the circuit board and
restart the diagnostic cycle to
fig. 28
Detach the connectors of
the door interlock and
the circuit must NOT be
value of the PTC).
the circuit must NOT be
value of the PTC).
the circuit must be OPEN
the component).
Is the door safety interlock
OK? (fig. 28)
YES
door interlock connector.
Is the wiring OK?
YES
check for further alarms.
door.
check for further alarms.
41/91
Replace the door
interlock and
NO
restart the
diagnostic cycle
to check for
further alarms.
Replace the
wiring and restart
NO
the diagnostic
cycle to check for
further alarms.
If there are traces of burning on the
circuit board, refer to page
599 70 56-70
E42
90