E74: Ntc Sensor Wrongly Positioned - Electrolux EWM25 series Service Manual

E74
Checks to perform:
Is the sensor correctly positioned in its
seat?
– (see fig. 17) –
Measure the value of the NTC sensor
(5.7÷6.3KΩ at 20°C) across contacts
J9-8 and J9-9 of the wiring connector
(fig. 4). Is the value correct?
(between 5.7 and 6.3KΩ at 20°C)
Perform phase 6 of the diagnostic cycle
and wait until the fill ends. Remain in this
phase for five minutes. Switch the
appliance off and measure the value of
the NTC sensor across contacts J9-8 and
J9-9 of the wiring connector (fig. 4).
Is the value lower than 5KΩ?
Replace the circuit board and restart the
diagnostic cycle to check for further
alarms.
∞
Ω
5.7 ÷ 6.3KΩ 5.7 ÷ 6.3KΩ 5.7 ÷ 6.3KΩ
(20°C) (20°C) (20°C)
Temperature probe
5.7 ÷ 6.3KΩ
(20°C)
07-2010 SOI/DT-mdm FCPD-dp Quality-fz

E74: NTC sensor wrongly positioned

Check that all the connectors are inserted correctly
NO
YES
NO
YES
NO
YES
Circuit
board
∞
Ω
Heating element
Position the sensor again into its seat
and restart the diagnostic cycle to check
Detach the connector
and measure directly
the NTC sensor.
Is the value correct?
– (see fig. 14) –
YES
Check/replace the wiring and restart the diagnostic
cycle to check for further alarms.
DRAIN WATER FROM TUB BECAUSE
Replace the heating element/the sensor
and restart the diagnostic cycle to check
Fig.4
Fig.17
83/121
for further alarms.
Replace the
sensor and restart
NO
the diagnostic
cycle to check for
further alarms.
!!ATTENTION!!
IT IS BOILING
for further alarms.
599 70 99-00
E74
Fig. 14