Guide to diagnostics of electronic controls EWM10931
2011 SOE/DT-mdm FCPD-dp Quality-tb
58/75
599 73 77-37
E71: Washing NTC probe faulty
E71
Voltage value out of range (short-circuit or open circuit)
E71
Checks to perform:
Run
phase 7
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 J10-4 and J10-5 of the
wiring connector
-(see fig.4)-.
Is the value correct?
(between 5.7÷6.3 k
Ω
at 20 °C)
Detach the connector
and measure directly
on the NTC probe.
-(see fig.18)-
Is the value correct?
(5.7
÷
6.3 k
Ω
at 20 °C)
Run phase
9
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.
Measure between terminals J10-4,
J10-5 of the NTC connector and the
appliance body
-(see fig.6)-
Is there any dispersion?
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.
Run phase
9
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.
NO
Y
E
S
NO
NO
Y
E
S
Y
E
S
NO
Y
E
S
If there are burns on the circuit
board, see page 73
!
M
A
IN CIRCUIT
BO
ARD
Heating element
Temperature probe
5.
7÷
6.
3k
Ω
(20 °
C
)
5.7÷6.3k
Ω
(20 °C)
∞
Ω
∞
Ω
Fig. 6
Fig. 18
Check that all the connectors are correctly inserted
!
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?
!
