E21: Drain Difficulty - Electrolux EWM10931 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 tube 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 9 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.
2011 SOE/DT-mdm FCPD-dp Quality-tb
Guide to diagnostics of electronic controls EWM10931

E21: Drain difficulty

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 J6-3 and
J4-4) -(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
Y
E
S
!
Check that all the connectors are correctly inserted
Clean the filter and repeat the diagnostic cycle
to check for any further alarms.
NO
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
Replace the circuit board and repeat
NO
the diagnostic cycle to check for any
for 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
!
24/75
Replace the pump
and repeat the
diagnostic
NO
cycle to check
for any further
alarms.
further alarms.
further alarms.
further alarms.
board, see page 73
599 73 77-37
E21