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Technical Support - A.D.L.
40/70
599 74 23-12 Rev.00
Is the door closed
correctly?
E42
E42:
Problems opening door
E42
Maximum time exceeded (255 seconds)
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).
To check the wiring, with the door
open, measure on the following wiring
connectors:
- 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?
Replace the
door lock and
repeat the
diagnostic cycle
to check for any
further alarms.
Replace the door lock.
Is the appliance working
correctly?
Check the mechanical coupling
between the door lock and the door
latch. Is the system efficient?
Close the door correctly and
repeat the diagnostic cycle to
check for any further alarms.
Replace the door latch/
the door
Replace the main circuit board
and repeat the diagnostic
cycle to check for any further
alarms.
Repeat the diagnostic cycle to
check for any further alarms
Measure the continuity
between connector J5 (main
circuit board) and the door lock
connector.
Is the wiring ok?
Replace the
wiring and
repeat the
diagnostic cycle
to check for any
further alarms.
Replace the main circuit board and repeat the diagnostic
cycle to check for any further alarms.
NO
Fig. 9
NO
Y
E
S
NO
NO
YES
NO
YES
Y
E
S
NO
Check that all the connectors are correctly inserted
!
If there are burns on the circuit board,
see page 68
!
YES
YES