E71: Washing Ntc Probe Faulty - Electrolux 6 Series Service Manual

Guide to diagnostics of NEW COLLECTION EWM09312 electronic controls
E71
Run phase 6 of the diagnostic cycle
and wait for the water to fill. Switch
the appliance off and measure the
value of the NTC probe between
contacts J7-4 and J7-5 of the wiring
connector.
–(see fig. 4)–
Is the value correct?
(between 5.7 and 6.3 KΩ at 20 °C)
YES
Measure between terminals J7-4,
J7-5 of the NTC connector and the
appliance body –(see fig. 6)–
Is there any dispersion?
YES
Detach the connector and measure
directly between the terminals of the
NTC probe and the appliance body
(there must be water in the tub).
Has the dispersion been measured?
YES
Run phase 8 of the diagnostic cycle,
drain water from the tub. Replace the
washing heating element and repeat
the diagnostic cycle to check for any
further alarms.
MAIN CIRCUIT BOARD
5.7÷6.3 KΩ
(20 °C)
Temperature probe
∞
Ω
∞
T.S.-mdm FCPD-dp Quality tb

E71: Washing NTC probe faulty

Voltage value out of range (short-circuit or open circuit)
NO
NO
NO
fig. 6
Heating element
Ω
!
Check that all the connectors are correctly inserted
Detach the connector
and measure directly
on the NTC probe.
–(see fig. 14)–
Is the value correct?
(5.7÷6.3 KΩ at 20 °C)
YES
Check/replace the wiring and repeat the diagnostic
cycle to check for any further alarms.
Replace the circuit board and repeat the diagnostic cycle
to check for any further alarms.
Check/replace the wiring and repeat the diagnostic cycle
to check for any further alarms.
J14 J5
J4
GND
Fig.4
!
48/61
Run phase 8 of the
diagnostic cycle,
drain water from the
tub. Replace the
NO
washing heating
element and repeat
the diagnostic cycle
to check for any
further alarms.
Fig. 14
J11
J13
J10 J8
J6
If there are burns on the circuit board,
see page 59
599 74 42-27 Rev.00
E71
J7