Electrolux EWM09312 Service Manual page 57

E74
Is the probe visibly positioned correctly in
its seat?
-See Fig.17-
YES
Measure the value of the NTC probe
(5.7÷6.3KΩ at 20°C) between contacts J7-
4 and J7-5 of the wiring connector (Fig. 4).
Is the value correct?
(between 5.7 and 6.3 KΩ at 20°C)
YES
Run phase 6 of the diagnostic cycle and
wait for the water to fill. Wait in this phase
for five minutes. Switch the appliance off
and measure the value of the NTC probe
between contacts J7-4 and J7-5 of the
wiring connector (Fig. 4).
Is the value below 5 KΩ?
YES
Replace the circuit board and repeat the
diagnostic cycle to check for any further
alarms.
MAIN CIRCUIT BOARD
5.7÷6.3KΩ
(20°C)
Temperature probe
∞
Ω
Technical Support - A.D.L.
E74: NTC probe improperly positioned
Heating
element
∞
Ω
Reposition the probe in its seat and
repeat the diagnostic cycle to check for
NO
Replace the washing heating element
and repeat the diagnostic cycle to check
NO
for any further alarms.
DRAIN THE WATER FROM THE TUB
BECAUSE IT IS BOILING HOT
NO
Replace the washing heating element
and repeat the diagnostic cycle to check
Fig. 4
Fig. 17
If there are burns on the circuit board,
!
57/70
any further alarms.
!!WARNING!!
for any further alarms.
see page 68
599 74 23-12 Rev.00
E74