E21: Drain Difficulty - Electrolux EWM0931 Series Service Manual

E21
Maximum drain time exceeded (measured for every cycle phase)
Checks to perform:
Is the drain filter clean?
Is the drain system ok?
(drain hose and water system of the home)-
(fig.1)
Y
E
S
Is the drain pump
working?
(in the diagnostic
cycle, select phase 2
fill and phase 8 drain)
(noise from the pump)
Y
E
S
Is the pressure switch's water circuit efficient?
(no clogging)
Replace the pressure switch and repeat the
diagnostic cycle to check for any further alarms.
2010 SOI/DT-mdm FCPD-dp Quality-tb
Guide to diagnostics for electronic controls EWM0931x

E21: Drain difficulty

Check that all the connectors are inserted correctly
Y
E
S
Is the resistance
measurement of the
pump approximately
155-200 Ω?
NO
(Measure it directly
on the connector on
the board side
between J5-4 and
J5-5) –(fig. 4)-
Y
E
S
Is the pump rotor
mechanically
blocked or broken?
Y
E
S
Clean/replace the drain pump and repeat the diagnostic cycle to check for
Y
E
S
Clean the filter and repeat the diagnostic cycle
NO
to check for any further alarms.
Disconnect and check the drain system
and repeat the diagnostic cycle to check
NO
for any further alarms.
Is the resistance
measurement of the
pump approximately
155-200 Ω?
NO
(Measure it directly
on the pump)
-(see fig. 5)-
Y
E
S
Check/replace the wiring and repeat the
diagnostic cycle to check for any further alarms.
Replace the circuit board and repeat the
NO
diagnostic cycle to check for any further alarms.
any further alarms.
Repair the water circuit of the pressure switch
and repeat the diagnostic cycle to check for any
NO
If there are burns on the circuit board,
24/67
Replace the pump
and repeat the
diagnostic cycle to
NO
check for any
further alarms.
further alarms.
see page 65
599 72 97-24
E21