E51: Motor Power Triac Short-Circuited - Electrolux EWM2100 Service Manual

E51
Intervention of the safety system for short-circuiting of the triac (after 5 attempts during the
cycle, immediately if detected at the start or during diagnostics)
Tests to be performed:
Measure among all the
terminals of wiring connector
J7-2÷J7-8 and the structure
of the appliance
see fig.6
Is there current leakage?
YES
Detach the connector from
Scollegare il connettore dal
the motor and measure
motore e misurare tra i
across the terminals of the
terminali e lo scudo del
motor and the motor shield.
motore. –(vedi fig.10)-
-see fig.10-
Ci sono dispersioni?
Is there current leakage?
YES
Replace the motor and
restart the diagnostic cycle
to check for further alarms.
Circuit
board
J11 J10
J9 J8
J16
Fig.4
03-2009 SOI/DT-mdm FCPD-dp Quality-fz

E51: Motor power triac short-circuited

Reconnect the connector J7 to
the circuit board, detach the
NO
connector from the motor and
perform phase 8 of the
diagnostic cycle.
Does E51 alarm appear again?
Replace the circuit board and
restart the diagnostic cycle to
check for further alarms.
Check/replace the wiring and
NO
restart the diagnostic cycle to
check for further alarms.
J7 J5
J2
U3
46/91
NO
YES
If there are traces of burning on the
J1
E52 will probably be
displayed: replace the
motor and restart the
diagnostic cycle to check
for further alarms.
circuit board, refer to page
599 70 56-70
E51
90
fig. 6
fig. 10