E51: Motor Power Triac Short-Circuited - Electrolux EWM09312 Service Manual

Activation of the protection system for the Triac short-circuit (after 5 attempts separated by a
E51
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
connector
J11-1÷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?
YES
Check for any water residue
on the motor/motor
connector.
Is there any water?
YES
Dry the motor/motor connector
and repeat the diagnostic cycle to
check for any further alarms.
MAIN CIRCUIT
BOARD
If there are burns on the circuit
board, see page 91
∞
2012 SOE/DT-mdm FCPD-dp
Guide to diagnostics of EWM09312 electronic controls

E51: Motor power TRIAC short-circuited

during diagnostics)
Reconnect connector J11 to the
main circuit board, detach the
connector from the motor, and
NO
access phase 8 of the
Is alarm E51 still shown?
Replace the circuit board and repeat the diagnostic cycle to check
Check/replace the wiring and repeat the diagnostic cycle to check for
NO
Replace the
motor and
repeat the
NO
diagnostic
cycle to check
for any further
alarms.
Ω
∞
Ω
!
Check that all the connectors are correctly inserted
diagnostic cycle.
YES
for any further alarms.
any further alarms.
J14
J4
Fig. 4
General
earthing
connection
43/69
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 67
599 75 18-74 Rev.00
E51
J10 J8 J7
Fig. 6
Fig. 10