Guide to diagnostics of EWX11831 electronic controls
2013 TS/DT-mdm FCPD-dp
24/71
599 77 00-82 Rev. 01
E21
E21: Drain difficulty
E21
Maximum drain time exceeded (measured for every cycle phase)
Checks to perform:
Clean the filter and repeat the diagnostic cycle
to check for any further alarms.
Is the drain filter clean?
Disconnect and check the drain system
and repeat the diagnostic cycle to check
for any further alarms.
Is the drain system ok?
(drain pipe and water system of the home)-
(
fig.1)
Is the drain pump
working?
(in the diagnostic
cycle, select
phase 2
fill and
phase 9
drain)
(noise from the pump)
Is the resistance
measurement of the
pump approximately
155÷200
?
(Measure it directly
on the connector on
the board side
between J15-3 and
Replace the pump
and repeat the
diagnostic cycle to
check for any
further alarms.
Is the resistance
measurement of the
pump approximately
155÷200
?
(Measure it directly
on the pump)
-(see
fig.5)
-
Check/replace the wiring and repeat the
diagnostic cycle to check for any further alarms.
Is the pump rotor
mechanically
blocked or broken?
Is the pressure switch's water circuit efficient?
(no clogging)
Replace the circuit board and repeat the
diagnostic cycle to check for any further alarms.
Repair the water circuit of the pressure switch
and repeat the diagnostic cycle to check for any
further alarms.
Clean/replace the drain pump and repeat the diagnostic cycle to check for
any further alarms.
Replace the pressure switch and repeat the
diagnostic cycle to check for any further alarms.
NO
NO
NO
NO
NO
NO
NO
Check that all the connectors are correctly inserted
!
If there are burns on the circuit board,
see page 69
!
Y
E
S
Y
E
S
Y
E
S
Y
E
S
Y
E
S
Y
E
S
Y
E
S
