E23: Malfunction Of The Component (Triac) That Controls The Drain Pump - Electrolux EWM1100 Service Manual

E23

E23: Malfunction of the component (triac) that controls the drain pump

Tests to be performed:
Is the resistance of the pump
about 150-200 Ω? (measure
across connectors J7-1 and
J7-9 on circuit board side -
fig.4-
YES
Measure across connectors J7-1 / J7-9 and the
structure of the appliance - fig.6 -
Is there current leakage?
YES
Check and if necessary replace the wiring and
restart the diagnostic cycle to check for further
alarm conditions.
If there are traces of burning on the
circuit board, refer to page
2007-10 SOI/DT-mdm FCPD-dp Quality-fz
Is the resistance of the pump
NO
about 150-200 Ω?
(measure directly on the
pump) -see fig.5-
Check and if necessary replace the wiring and restart the
diagnostic cycle to check for further alarm conditions.
NO
59
∞
Ω
fig. 6
24/59
Replace the pump and restart
NO
the diagnostic cycle to check
for further alarm conditions.
YES
Replace the main circuit board and restart the
diagnostic cycle to check for further alarm
conditions.
J10 J9
Fig.4
Scheda
Elettronica
E23
J7
J2 J1
U3
155÷200Ω
155÷200Ω
fig. 5
599 70 32-47