E52: No Signal From Motor Tachometric Generator (Second Part) - Electrolux EWM0931 Series Service Manual

E52: No signal from motor tachometric generator (second part)

E52
Cycle interrupted
Checks to perform:
The motor never runs
To check the wiring, measure
(Ω) between the following wiring
connectors of the main PCB
(fig.4) and compare the values
with
the correct ones
(see page 47: point 4 - motor
parameters)
- between J11-2 and J11-5, a
value as in point - B (Stator)
must be found
- between J11-1 and J11-5,
where featured, a value
as in point 4 – D must be found
(half field stator).
- between J11-3 and J11-4, a
value as in point - C (rotor) must
be found.
Are the values correct?
Y
E
S
Replace the circuit board and
repeat the diagnostic cycle to
check for any further alarms.
MAIN PCB
ROTOR
2010 SOI/DT-mdm FCPD-dp Quality-tb
Guide to diagnostics for electronic controls EWM0931x
after 5 attempts during the cycle, immediately if recognised at the start of
the cycle or during diagnostics.
Check that all the connectors are inserted correctly
Check the motor as
NO
wiring and repeat the
check for any further
HALF FIELD STATOR
TACHOMETER
FULL FIELD STATOR
on page 47.
Is the motor ok?
Y
E
S
Check/replace the
diagnostic cycle to
alarms.
J14
J5
J4
GND
Fig. 4
If there are burns on the circuit board,
46/67
Replace the motor and
repeat the diagnostic
NO
cycle to check for any
further alarms.
J11 J13 J10
J6
see page 65
E52
J8 J7
Fig. 11
599 72 97-24