03-2009 SOI/DT-mdm FCPD-dp Quality-fz 25/91 599 70 56-70
NO
NO
NO
YES
NO
NO
E21: Difficulty in draining
E21
Maximum drain time exceeded (measured for each phase of the cycle)
E21
Tests to be performed:
YESI
YES
NO
Clean the filter and restart the diagnostic cycle
to check for further alarms.
Is the drain filter clean?
NO
Disconnect and check the drain system.
Is the drain system OK? (drain hose and
domestic hydraulic circuit)-fig.1
Does the drain
pump function? (in
the diagnostic cycle,
select phase 2 fill and
phase 8 drain) (noise
from the pump)
Is the ohmic
resistance of the
pump about
155÷200Ω?
(measure directly on
the connector on the
circuit board side
across J7-9 and J7-
1) -fig. 4-
Replace the pump
and restart the
diagnostic cycle to
check for further
alarms.
Is the ohmic
resistance of the
pump about
155÷200Ω?
(measure directly on
the pump)
-see fig.5-
YES
Check and if necessary replace the wiring and
restart the diagnostic cycle to check for further
alarms.
Is the pump
impeller jammed or
broken?
Is the hydraulic circuit of the pressure switch
efficient? (i.e. not obstructed)
Replace the circuit board and restart the
diagnostic cycle to check for further alarms.
Repair the hydraulic circuit of the pressure
switch and restart the diagnostic cycle to check
for further alarms.
Clean or replace the drain pump and restart the diagnostic cycle to check
for further alarms.
Replace the pressure switch and restart the
diagnostic cycle to check for further alarms.
YES
YES
YES
If there are traces of burning on the
circuit board, refer to page 90
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