Service manual

SOI/DT 2007-02 dmm 21/56 599 38 60-23
6.3 Diagnostics phases
Irrespective of the type of PCB and the configuration of the programme selector it is possible, after entering
diagnostics mode, to perform diagnostics on the operation of the various components and to read the alarms
by turning the programme selector clockwise. All the alarms are enabled during the diagnostics cycle.
Selector position Components actioned Operating conditions
Function
checked
Display
1
- All the LEDs and symbols light
in sequence.
- When a button is pressed, the
corresponding LED or symbol
light.
Always activated
Operation of the
user interface
2
-
Door interlock
- Wash solenoid
Door locked
Water level below anti-
flooding level
Maximum time 5 minutes
Water ducted
through washing
compartment
Displays the water
level in tub
3
- Door interlock
- Pre-wash solenoid
Door locked
Water level below anti-
flooding level
Maximum time 5 minutes
Water ducted
through pre-wash
compartment
(bleach)
Displays the water
level in tub
4
- Door interlock
- Pre-wash and wash solenoids
Door locked
Water level below anti-
flooding level
Maximum time 5 minutes
Water ducted
through conditioner
compartment
Displays the water
level in tub
5
- Door interlock
- Bleach/stains solenoids
Door locked
Water level below anti-
flooding level
Maximum time 5 minutes
Water ducted
through
conditioner/stains
compartments
Displays the water
level in tub
6
-
Door interlock
- Wash solenoid if the level of
water in the tub does not cover
the heater
- Heating element
- Recirculation pump
Door locked
Water level above the
heater
Maximum time 10 minutes
or up to 90°C (*)
Heating
Recirculation
Wash water
temperature
7
- Door interlock
- Wash solenoid if the level of
water in the tub does not cover
the heater
- Motor (55 rpm clockwise, 55
rpm counter-clockwise, 250
rpm impulse)
Door locked
Water level above the
heater
Check for leaks
from the tub
Displays the drum
speed (the real
value divided by
ten)
8
- Door interlock
- Drain pump
- Motor up to 650 rpm then at
maximum spin speed
Door locked
Water level lower than
anti-boiling level for
spinning
Drain and spin;
control of
congruence in
closure of level
pressure switches
Displays the drum
speed (the real
value divided by
ten)
9
----
---- ---- ----
10
- Reading/Cancellation of the last
alarm
----- ----
(*) In most cases, this time is sufficient to check the heating. However, the time can be increased by repeating the phase without draining the
water: pass for a moment to a different phase of the diagnostics cycle and then back to the heating control phase (if the temperature is higher
than 80°C, heating does not take place).
(**) The check at the maximum speed occurs without control of the FUCS and no clothes have to be inserted inside the appliance.