Electrolux EWM09312 Service Manual page 56

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)
Y
E
S
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÷6.3KΩ
(20°C)
Temperature probe
∞
Ω
Technical Support - A.D.L.
E71: Washing NTC probe faulty
Voltage value out of range (short-circuit or open circuit)
NO
NO
NO
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.
Fig. 6
Fig. 4
If there are burns on the circuit board,
!
56/70
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
see page 68
599 74 23-12 Rev.00
E71