Electrolux WE170P, Service Manual

Page: 19 / 85

19
6.3 Diagnostic test phases
Irrespective of the type of PCB and the configuration of the programme selector, after entering the diagnostic
mode, turn the programme selector dial
clockwise to perform the diagnostic cycle for the operation of the
various components and to read any alarms.
Concurrently, a selector control code is shown on the LCD display, which indicates for
two seconds the
description in the last column of the table below.
(all alarms are enabled in the diagnostic cycle).
Selector
position
Components activated Working conditions Function tested LCD display
1
-
The LEDs, groups of symbols
in the LCD screen and the
backlight of the display are
turned on in sequence
-
Press a button/sensor to turn
on the group of icons in the
LCD screen or the
corresponding LED and the
buzzer sounds at the same
time
Always active.
User interface
functions.
2
-
Door safety interlock
-
Wash solenoid
Door closed.
Water level below
anti-flooding level.
Maximum time
5 mins.
Water fill to wash
compartment.
Water level in
the tub (mm)
3
-
Door safety interlock
-
Pre-wash solenoid
Door closed.
Water level below
anti-flooding level.
Maximum time
5 mins.
Water fill to pre-
wash
compartment
Water level in
the tub (mm)
4
-
Door safety interlock
-
Solenoid valve
pre-wash and wash
Door closed.
Water level below
anti-flooding level.
Maximum time
5 mins.
Water fill to
conditioner
compartment.
Water level in
the tub (mm)
5
-
Door safety interlock
-
Third solenoid valve
Door closed.
Water level below
anti-flooding level.
Maximum time
5 mins.
Water fill to third
solenoid valve
compartment.
Water level in
the tub is
displayed (mm)
6
-
Door safety interlock
-
Fourth solenoid valve (hot
water where featured)
Door closed.
Water level below
anti-flooding level.
Maximum time
5 mins.
Water fill to
fourth solenoid
valve
compartment.
Water level in
the tub is
displayed (mm)
7
-
Door safety interlock
-
Wash solenoid, if the water in
the tub is not enough to cover
the heating element
-
Heating element
Door closed.
Water level above the
heating element.
Maximum time
10 mins up to 90 °C.
(*)
Heating.
Circulation.
Temperature in
°C measured
using the NTC
probe
8
-
Door safety interlock
-
Wash solenoid, if the water in
the tub is not enough to cover
the heating element
-
Motor (55 rpm clockwise,
55 rpm anti-clockwise,
250 rpm pulse)
Door closed.
Water level above the
heating element.
Check for leaks
from the tub.
Drum speed in
rpm/10