E51: Motor Power Triac Short-Circuited - Electrolux EWM0931 Series Service Manual

E51 Activation of the protection system for the triac short-circuit (after 5 attempts separated by a
5-minute pause, during the cycle, immediately if recognised at the start of the cycle or
Checks to perform:
Measure between all the
terminals of the wiring
connectorJ11-1 - J11-7 and
the appliance body
(see fig. 6)
Is there any dispersion?
Y
E
S
Detach the connector from the
motor and measure between
the terminals and the motor
casing. –(see fig.10)-
Is there any dispersion?
Y
E
S
Check for any water residue
on the motor/motor
connector.
Is there any water?
Y
E
S
Dry the motor/motor connector
and repeat the diagnostic cycle to
check for any further alarms.
MAIN PCB
If there are burns on the circuit
board, see page 91
∞
2010 SOI/DT-mdm FCPD-dp Quality-tb
Guide to diagnostics for electronic controls EWM0931x

E51: Motor power triac short-circuited

during diagnostics)
Check that all the connectors are inserted correctly
Reconnect connector J11 to the
main PCB, detach the connector
from the motor, and access
NO
phase 8 of the diagnostic cycle.
Is alarm E51 still shown?
Replace the circuit board and repeat the diagnostic cycle to check for
Check/replace the wiring and repeat the diagnostic cycle to check for
NO
Replace the
motor and
repeat the
diagnostic
cycle to check
NO
for any further
alarms.
General earthing
Ω
∞
Ω
Y
E
S
any further alarms.
any further alarms.
J14
J4
Fig. 4
connection
43/67
E52 is probably shown:
replace the motor and
repeat the diagnostic
NO
cycle to check for any
further alarms.
J11 J13
J5
J6
GND
If there are burns on the circuit board,
see page 65
E51
J10 J8 J7
fig. 6
fig. 10
599 72 97-24