E23: Malfunction Of The Component (Triac) That Controls The Drain Pump - Electrolux EWM2100 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 any current leakage?
YES
Check and if necessary replace the wiring and
restart the diagnostic cycle to check for further
alarms.
If there are traces of burning on the
circuit board, refer to page
03-2009 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 alarms.
NO
J16
Fig.4
90
∞
Ω
fig. 6
29/91
Replace the pump and restart
NO
the diagnostic cycle to check
YES
Replace the main circuit board and restart the
diagnostic cycle to check for further alarms.
J11 J10 J8
J9
Circuit
board
E23
for further alarms.
J7
J5
J2 J1
U3
155÷200Ω
155÷200Ω
fig. 5
599 70 56-70