E74: Ntc Probe Improperly Positioned - Electrolux 6 Series Service Manual

Guide to diagnostics of NEW COLLECTION EWM09312 electronic controls
E74
Is the probe visibly positioned correctly in
its seat?
–(see fig. 17)–
YES
Measure the value of the NTC probe
(5.7÷6.3 KΩ 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÷6.3 KΩ
(20 °C)
Temperature probe
∞
Ω
If there are burns on the circuit board,
!
see page 59
T.S.-mdm FCPD-dp Quality tb

E74: NTC probe improperly positioned

Heating element
∞
Ω
!
Check that all the connectors are correctly inserted
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
J14
J5
J4
GND
Fig.4
Fig. 17
49/61
any further alarms.
!!WARNING!!
for any further alarms.
J10
J11 J8
J13
J6
599 74 42-27 Rev.00
E74
J7