SUBJECT:
Front Loading Tumble Dryers
-
New
2011 Electronic Core Boards:
Drying Programs and Functions
- Self-diagnosis and Error Codes.
"LOGIC" Version.
"DIGIT" Version
(3 Digits).
A) FOREWORD:
The new
2011 range of Front Loading Tumble Dryers, is based on two different aesthetics: the
"LOGIC"
version
and
the
"DIGIT"
version
(see
pictures
in
the
first
page).
The
differences
between the two versions only concern the User Interface, while the working algorithms and
the available Drying Programs and Options, are exactly the same. The biggest novelty is indeed
the Core Board of the Digit version, named "3 Digits" because of the new, biggest display that's
now available. The following information is mainly related to the new "3 Digits" Core Boards.
B) GENERAL FEATURES OF THE "3 DIGITS" CORE CORE BOARD:
B1)
Electronic Core Board control receives the following input signals:
B1a) Voltage Supply
The main Core Board
is
supplied
by
a
220-240
V-AC
from
the
net
(L
and N).
Continuous
voltages are arisen by means of a switching regulator on the Core Board.
B1b) Drying Program Selection
It
receives the signal
from a
12
positions
(11
+ OFF) rotary switch, connected to the Core
Board by a
3 ways PCB connector. The choice is among timed and automatic programs.
B1c) Temperature Sensors
(NTC)
Temperatures control is done by means of
1
or
2
NTC
(1
for
vented type,
2
for
condenser
one), placed in the front duct
(for both types) and in the rear
(only for condenser).
B1d) Door
The Core
Board
recognizes
the
situation
of
open door
through
the
feedback
of
a
micro-
switch
normally
open.
When the door is
open
the
status
of
the
machine
has
to
become
STAND-BY and the Core Board cannot accept any signal from the User Interface.
B1e) Start Command
This
is
realized
by
a
button
on
the
Core
Board.
The
signal
is
accepted
only
with
door
locked.
B1f)
Water Level
(only for Condenser Type)
The machine recognizes the condition of
“Full Tank” by means of a pressure switch placed
in the reservoir. The water drips from condensation in the reservoir and from it, through a
valve,
in
the tank.
When the tank is full,
the reservoir
begins
to
fill
till
the moment the
pressure switch trips. Hence the machine stops and waits for the emptying of the tank.
B1f)
Heating Element Feedback
This is a high voltage feedback that allows to detect failures in the heating circuit.
B2)
The Core Board can also drive these electric loads:
B2a)
Heating Element
A
2100 W heating resistance can be activated through the switch of a relay.
B2b) Asynchronous Motor for Drum Rotation
A
200
W motor has to be driven for
turning
both
clockwise
and counterclockwise.
Drum
rotation
has
to
achieve
about
56
rpm
by
means
of
a
pulley
and
a
belt.
Ventilation
is
assured by a fan on the motor's crankshaft. Drum rotation activates ventilation. The motor
is
connected to a cue capacitor
7.5
µF. The motor is driven by
2
relays in
series,
the first
for the current supply and the second for the direction of rotation.
B2c) Recycle Pump
This is
a synchronous pump, activated by a TRIAC, that brings water from the reservoir to
the upper tank
(only for Condenser Top Tray).
B2d) Buzzer
C) FEATURES OF THE "3 DIGITS" USER INTERFACE AND DRYING PROGRAMS:
C1)
Features that can be operated through the User Interface of Control Panel:
C1a) Stand-by Mode
At the power-on, obtained by rotating the selector out of its OFF
(0)
position, the machine
is
in
stand-by
mode. In
this
situation
the
machine
displays
the
Start/Pause
LED blinking
(1Hz) and eventually special programs or drying options LED’s fixed on.
Every electrical load is disarmed. To reach the stand-by condition, the machine needs the
door locked.
In
this
condition
the
Core
Board
accepts
every
selection
in
terms
of
selector
rotation
and/or buttons pressure.
“Start” selection is accepted only in this Stand-By condition.
Every
button
pressure
and
every
selector
rotation
is
accompanied
with
a
buzzer
beep
(always present on the Core Board). At the end of a cycle, displayed with
“End”, a power
failure or a door opening move the machine to the Stand-By status.
C1b) Start the Drying Program
When the selected program starts, the Start/Pause LED stops blinking and becomes fixed.
The other LEDs, relative to special programs and options, remain in the same condition of
previous
Stand-By.
The
program
starts
with
the
sequence
of
drum
rotations
and
heater
activations specific of
the program. It is possible to change the program selection without
aborting
the
cycle
only
within
2
minutes
from
the
moment the Start/Pause
button
was
pressed
(this
is
not
possible
with
the
Special
Timed
Programs).
After
that
period
the
Keyboard
on
the
Control
panel
becomes
“deaf”
and
no
buzzer
beep
accompanies
any
incoming selection. The only way to restart a new program is to perform a RESET.
During
the
carrying
out
of
a
program,
the
pressure
of
Start/Pause
button
makes
the
machine pause. The behavior of the machine is same as with the door opened: Display and
Start
LED blinking
and all
electric
loads
disarmed.
A new pressure of Start/Pause
button
makes the cycle
restart
from the
step
of
previous
stop.
If
any
pause
or
door
opening
or
power failure occurs, the performance of automatic programs is not guaranteed
(because
of the change of drying parameters).
C1c) Reset
A program can be interrupted
by
a
Reset
procedure.
By pressing
the
Start/Pause
button
and keeping it pressed for at least
3 seconds, the program is aborted and the machine goes
immediately in Stand-By condition
(every load is immediately disarmed). Coming into Reset
routine, the machine displays
“0:00” blinking at
1 Hz for
3 seconds, together with
3 buzzer
beeps.
C1d) Selection of the Drying Program
Programs
are
selected
through
a
12
position
rotary
switch.
The
list
of
programs
is
here
below:
Position
Program
0
OFF
1
Memo
2
Bone Dry
(Automatic
-6% Cotton,
-2% Synthetic)
3
Store Dry
(Automatic
-3% Cotton,
0% Synthetic)
4
Ready to Hang Dry
(Automatic,
0% Cotton,
+2% Synthetic)
5
Iron Dry
(Automatic,
+12%)
6
Relax
(Special Timed Program)
7
Wool
(Special Timed Program)
8
Mix & Dry
(Special Timed Program)
9
Shirts
(Special Timed Program)
10
Rapid
40’
(Special Timed Program)
11
Time
(Timed Programs)
C1e) Memo
The selection of Memo Program allows to re-run a program that the user has saved before
(for example
“Bone Dry” with
“Synthetic” fabrics), without selecting the correct sequence
of
rotary
switch
positions
and
options
buttons
for
that
particular
program.
Like
every
program, it can start only with door closed.
When the chosen program
(and option) is selected and started from at least
2 minutes,
the
user can store the program in memory by pressing simultaneously the
“Anti
-
Crease” and
the
“Acrylic
Synthetic”
buttons
for
3
seconds
(a
beep confirms
the
new storage
and the
display visualizes
“Sto” for
2 seconds).
So
the
selection
is
saved
in
the
Flash
Memory and
the
user
can
start
the
program
by
setting
the
MEMO
position.
When
the
selector
switch
is
positioned
on
MEMO,
the
visualization
is
the
one
of
the
recorded
program
(count-down
time
on
the
display
and
related LEDs fixed on). By default, MEMO is Cotton
- Ready to Hang
- Dry
0%.
C2)
Features of the available Drying Programs:
C2a) Bone Dry
This is
an automatic program that performs a laundry drying of
-6%
for
Cotton and
-3%
for
Synthetics. The percentage of drying effect is calculated on the weight of laundry
(nominal
and dried). The cycle is divided in
3
phases: "Heat Stroke", drying process and cool down.
In
the first
2
phases the heating element is activated, following a fixed duty-cycle, in the
cool down phase there is no heating but only ventilation. The cool down sequence is from
5
to
15 minutes long.
When this program is selected, the display shows the
“sun” LED
(
)
fixed
on, for
all
the
duration
of
the
program. When the cool down phase begins, the control lights
the
“fan”
LED
(
)
fixed on. The program duration has to be estimated during the heat stroke phase.
The time-out for this cycle is
230 minutes, comprehensive of cool down.
C2b) Store Dry
This
is
an automatic program that performs a laundry drying of
-3%
for
Cotton and
0%
for
Synthetics. The percentage of drying effect is calculated on the weight of laundry
(nominal
and dried). The cycle is divided in
3
phases: "Heat Stroke", drying process and cool down.
In
the first
2
phases the heating element is activated, following a fixed duty-cycle, in the
cool down phase there is no heating but only ventilation. The cool down sequence is from
5
to
15 minutes long.
When this program is selected, the display shows the
“cupboard” LED
(
)
fixed on, during
all
the duration of the program. When the cool down phase begins, the control lights the
“fan” LED
(
)
fixed on. The program duration has to be estimated during the heat stroke
phase. The time-out for this cycle is
210 minutes, comprehensive of cool down.
C2c) Hang Dry
This is
an automatic program that performs a laundry drying of
0%
for
Cotton and
+2% for
Synthetics. The percentage of drying effect is calculated on the weight of laundry
(nominal
and dried). The cycle is divided in
3 phases:
“Heat Stroke”, drying process and cool down.
In
the first
2
phases the heating element is activated, following a fixed duty-cycle, in the
cool down phase there is no heating but only ventilation. The cool down sequence is from
5
to
15 minutes long.
When this program is selected, the display shows the
“hanger” LED
(
)
fixed
on, during
all
the duration of the program. When the cool down phase begins, the control lights the
“fan” LED
(
)
fixed on. The program duration has to be estimated during the heat stroke
phase. The time-out for this cycle is
190 minutes, comprehensive of cool down.
C2d) Iron Dry
This
is
an automatic program that performs a laundry drying of
+12% for both Cotton and
Synthetics. The percentage of drying effect is calculated on the weight of laundry
(nominal
and dried). The cycle is divided in
3 phases,
“Heat Stroke”, drying process and cool down.
In
the first
2
phases the heating element is activated, following a fixed duty-cycle, in the
cool down phase there is no heating but only ventilation. The cool down sequence is from
5
to
15 minutes long.
When this program is selected, the display shows the
“iron” LED
(
)
fixed on, during all
the
duration
of
the
program.
When the
cool
down phase
begins,
the
control
lights
the
“fan” LED
(
)
fixed on. The program duration has to be estimated during the heat stroke
phase. The time-out for this cycle is
170 minutes, comprehensive of cool down.
C2e) Relax
This is a special timed program with the duration of
12 minutes. This Program is dedicated
to
refresh
the long
stored
clothing,
or
to
ease the ironing
of
too
dried
tissues.
Once this
program is selected, it is not possible to set the Synthetics option.
The cool down duration is fixed in
3
minutes
(LED
switched on).
Once this program is
started,
the
election
cannot
be
changed
without
a
RESET
procedure,
neither
within
the
first
2 minutes. It is not possible to modify the duration of the cycle.
C2f)
Wool
This is a special timed program with the duration of
12 minutes, dedicated to the drying of
woolens
tissues.
Once
this
program
is
selected,
it
is
not
possible
to
set
the
Synthetics
option.
The cool down duration is fixed in
4
minutes
(LED
switched on).
Once this program is
started,
the
election
cannot
be
changed
without
a
RESET
procedure,
neither
within
the
first
2 minutes. It is not possible to modify the duration of the cycle.
C2g) Mix & Dry
This
is
a special
timed program with the default duration
of
99
minutes
(for
a maximum
load
of
3
Kg,
for
the
best
drying
effect).
The program will
perform
14
iterations
of
the
sequence:
5 min. heat
(CW rev.)
-
2 sec. pause
-
1 min. heat
(CCW rev.)
-
2 sec. pause
Then
15
minutes of cool down
(LED
switched on). When this program is selected, it is
not
possible
to
select
Synthetics
option.
Once it's
started,
the
selection
can
be changed
within the first
2 minutes.
It
is
possible to modify the duration of the cycle, through the
“Time Selection” button. The
possible changes to the duration time of the Mix & Dry program, are:
1)
105 minutes
(15 cycles with heater and
15 minutes of cool down)
2)
111 minutes
(16 cycles with heater and
15 minutes of cool down)
3)
117 minutes
(17 cycles with heater and
15 minutes of cool down)
4)
81 minutes
(11 cycles with heater and
15 minutes of cool down)
5)
87 minutes
(12 cycles with heater and
15 minutes of cool down)
6)
93 minutes
(13 cycles with heater and
15 minutes of cool down)
Every pressure of the button modifies the cycle length, following the list here above. The
display shows the duration of the program in terms of hours and minutes
(i.e.
105 minutes
are displayed as
1:45). When the program is selected, the display shows the default time to
count down
(99
minutes), then after a few seconds the actual length
(corresponding to the
User's choice) is displayed.
C2h) Shirts
This is a special timed program with the default duration of
60 minutes
(for a load of
2 Kg-
10
shirts
-
to
obtain
an
optimal
drying
effect).
The
duty
cycle
for
this
program
(both
Condenser
and
Vented)
is
High
Power
profile
"Cotton"
(1)
or
Reduced
Power
“Acrylic
Synthetic”
(2)
profile,
depending on the use or
not
of
the
fabric
selection
button
on the
Control Panel. Profiles are as follows:
(1)
-
5 min. heat
(CW rev.)
-
2 sec. pause
-
1 min. heat
(CCW rev.)
-
2 sec. pause
(2)
-
3.5
min. heat
(CW rev.)
-
2
sec. pause
-
1
min. heat
(3
min. CCW rev.)
-
2
sec.
pause
The program will perform
8 iterations of the sequence here above, then
12 minutes of cool
down
(LED
switched on).
Once
this
program
is
started,
the
program
selection
can
be
changed
within
the
first
2
minutes. It
is
possible
to
modify the duration
of
the cycle,
through the
“Time Selection”
button.
The possible changes to the length of the Shirts
program, are:
1)
66 minutes
(
9 cycles with heater and
12 minutes of cool down)
2)
72 minutes
(10 cycles with heater and
12 minutes of cool down)
3)
79 minutes
(11 cycles with heater and
12 minutes of cool down)
4)
42 minutes
(
5 cycles with heater and
12 minutes of cool down)
5)
48 minutes
(
6 cycles with heater and
12 minutes of cool down)
6)
54 minutes
(
7 cycles with heater and
12 minutes of cool down)
Every
pressure
of
the
button
modifies
the
cycle
time,
following
the
list
here above.
The
display
shows the duration of the program in terms of hours and minutes
(i.e.
66
minutes
are displayed as
1:06). When the program is selected, the display shows the default time to
count
down
(60
minutes),
then
after
a
few
seconds
the
actual
program
length
(corresponding to the User's choice) is displayed.
C2i)
Rapid
40’
This
is
a special
timed program with the duration
of
40
minutes.
The duty cycle
for
this
program
(both Condenser and Vented) is the High Power profile described here below:
5 min. heat
(CW rev.)
-
2 sec. pause
-
50 sec. heat
(1 min. CCW rev.)
-
2 sec. pause
Once this
program is
started,
the
program selection
cannot
be changed without a RESET
procedure, neither within the first
2
minutes. It
is
not possible
to change the duration of
the
cycle.
The
display
shows
the
duration
of
the
program
in
terms
of
minutes
(i.e.
40
minutes are displayed as
40).
C2m)
Time
(Timed Drying Programs)
This selection includes all the normal time programs. The research of the specific program
has
to
be
performed
with
the
repetitive
pressure
of
the
“Time
Selection”
button.
The
duration of program can be selected among the following:
1)
20 minutes of ventilation only
(the LED
is
lighted all along the cycle)
2)
30 minutes
(10 minutes of cool down
)
3)
45 minutes
(10 minutes of cool down
)
4)
60 minutes
(10 minutes of cool down
)
5)
75 minutes
(10 minutes of cool down
)
6)
90 minutes
(15 minutes of cool down
)
7)
120 minutes
(15 minutes of cool down
)
8)
150 minutes
(15 minutes of cool down
)
9)
180 minutes
(15 minutes of cool down
)
Pushing
the
“Acrylic
Synthetic”
button,
the
user
can
choose
between the High
Power or
Reduced Power profile. The display
shows the duration
of
the
program in terms of hours
and minutes
(i.e.
90
minutes
are
displayed
as
1:30).
The scrolling
of
time
programs
(by
pressure of relative switch) is performed from
1)
to
7)
and then back to
1)
and so on. The
default
value
displayed
is
60
minutes.
When ventilation
(20
minutes)
is
chosen,
once the
program is started, the program selection cannot be changed without a RESET procedure,
neither within the first
2 minutes.
C3)
Options
The Control Panels feature a display with
5
switches,
3
of
which with a dedicated LED. Here
follows the explanation of how programs are changed by the use of those switches.
C3a) Time Selection Button
This button has the function of changing the duration of the program selected through the
rotary switch.
•
It cannot be used with automatic programs, where the duration depends on the load.
•
It cannot be used also with time programs very short
(Relax, Wool and Rapid
40’).
•
It can be used only with the selection of:
1)
Mix & Dry Program
2)
Shirts Program
3)
Time Programs
Every
pressure
of
the
switch
will
change the displayed
time,
like
it
was described in
the
specific paragraph
(C2m). No LED is coupled with the operation of this switch.
C3b) Delay Start Button and LED
This button has the function of selecting a delay before the start of the selected program.
By default the associated LED is off. The button is active
(the control accepts its pressure)
only if the machine status is STAND-BY.
At
the
first
pressure
of
the
switch,
the
associated
LED becomes fixed on and the display
starts to show the delay that can be chosen. The visualization of the delay time is
“h:xx”.
This
time is visualized
blinking
at
1
Hz, alternating with the count-down indication of the
selected cycle.
The choice of delay times is from
1 hour to
24 hours, with
1 hour steps.
After the complete scrolling of the
24
possibilities
of delay to set
(h:24), another pressure
of the switch deactivates the Delay Start option and the associated LED goes off. Once the
delay time is set, the user has to press the Start button to start the count-down.
After
the Start,
the Start
LED becomes fixed, while the display goes on blinking until the
end
of
the
set
delay
time.
When the
delay
time
has
expired,
the
machine
goes
in
the
working mode
(display fixed, showing the count-down of the cycle duration and Delay Start
LED
switched
off).
If
no
door
openings
or
power
fails
occurred,
the
machine
starts
the
program selected, without any user intervention.
When a delay is set and the Start button is pressed,
if
also
the option
“Anti
-
Crease” is
activated,
the
machine
executes
a
“pre
drying
anti-crease”
routine.
Every
10
minutes,
until the end of the delay, the following sequence is executed by the machine:
1)
Pump and Motor work
(Clockwise rotation) for
4 seconds.
2)
1 second pause. Relay switches to Counterclockwise rotation.
3)
Pump and Motor work
(Counterclockwise rotation) for
4 seconds.
4)
1 second pause. Relay switches to prepare for the next Clockwise rotation.
C3c) Acrylic Synthetic Button
This button has the function of setting the Dryer behavior, in accordance with the type of
fabrics to dry, i.e. allowing to choose between Cotton fabrics and Acrylic/Synthetics. The
2
types of fabrics obviously need a different power profile
(described here after).
By default
every
program is set
with
Cotton option
set
(and Cotton LED fixed on).
If
this
button is pressed, the setting changes in Synthetics. The Cotton LED is switched off and the
Synthetics one is lighted fixed.
The Cotton drying follows the heating sequence of High Power here below:
5 min. heat
(CW rev.)
-
2 sec. pause
-
1 min. heat
(CCW rev.)
-
2 sec. pause
The Synthetics drying follows the heating sequence of Reduced Power here below:
3.5 min. heat
(CW rev.)
-
2 sec. pause
-
1 min. heat
(2 min. CCW rev.)
-
2 sec. pause
Every program
(except Relax,
Wool, Mix & Dry and Rapid
40’
which have a specific duty-
cycle) follows the duty-cycles here above, according with the fabric option selection.
C3d) Anti-Crease Button
This function sets a
“post drying anti-crease” cycle. When the function is selected
(this can
be done within the first
2
minutes of the working, where available), the associated LED is
on. After the end of the cycle, every
10 minutes the machine behaves this way:
1)
Pump and Motor work
(Clockwise rotation) for
4 seconds.
2)
1 second pause. Relay switches to Counterclockwise rotation.
3)
Pump and Motor work
(Counterclockwise rotation) for
4 seconds.
4)
1 second pause. Relay switches to prepare for the next Clockwise rotation.
When the
door
is
opened
the
anti-crease
cycle
is
interrupted
and
the
machine
goes
in
STAND-BY mode
(once the door is closed again).
C3e) Start/Pause Button
This
button
has
the
function
of
starting
the
Drying
Cycle
of
the
selected
program,
or,
if
pressed during the program execution, to Pause the carrying out without aborting the cycle
(STAND-BY).
From
the
STAND-BY
condition
(the
related
LED
blinks
at
1
Hz),
when
the
button is pressed again the related LED becomes fixed and the program re-starts from the
point of interruption.
Every time the door is opened or a power failure occurs, the machine goes in STAND-BY
mode, then needing a confirmation to restart the program. The confirmation is given
through a new pressure of Start button.
When
a
working
machine
is
put
in
Pause
with
the
pressure
of
the
Start
button,
the
associated
LED becomes blinking
(1
Hz),
and
goes
back
fixed
after
another
Start
button
pressure.
C3f)
Eco LED
This LED is automatically switched on when an economic program is set. The programs that
can be coupled with the Economic Function are:
1)
Hang Dry
2)
Iron Dry
3)
Mix & Dry
(only if the program length is decreased from the default time)
4)
Shirts
(only if the program length is decreased from the default time)
C3g) Buzzer Inhibition
It
is
possible
to
inhibit
the buzzer sounds, by
carrying
out a specific
sequence of pushing
some switches. The effect is not to hear any beep when the selector is rotated or a switch
is
pressed.
In case of error, the buzzer will normally work, even if it is inhibited
(in
order to alert the
customer).
The
buzzer
inhibition
is
performed
by
switching-on
the
machine
by
moving
the
rotary
switch
to
the
11
th
position
(Timed
Programs),
while
contemporarily
pushing
and
keeping
pushed for at least
3” the Time Selection switch.
After this period of time, the display visualizes
“OFF” for
1 sec.
(or
“ON” when the buzzer
is
re-enabled).
C4)
Typical Carrying Out of a Drying Cycle
Every drying cycle can be divided in
3 phases, the
“heat stroke”, the
“drying process” and
the
“cool down”:
1)
Heat Stroke
(Not Present in the Timed Programs):
It's
the
initial
phase
used
to
reach
the
operative
temperature.
In
this
phase
the
water
extraction
from
the
load
can
be
considered
negligible.
In
this
phase
a
drum
load
“estimation”
(and also the calculation of the cycle duration) is performed.
2)
Drying Process:
This
is
the
central
phase
of
the
Drying
Cycle,
in
which
the
water
is
extracted
from
the
laundry.
Starting
from a minimal water extraction, the maximum is reached, followed by
another minimal water quantity extracted. The duration of this phase is strictly related to
the
amount
of
loaded
laundry
and
to
the
heat
exchanger
efficiency.
In
this
phase
all
automatic programs evaluations occur.
3)
Cool Down:
This is a load refresh phase. It is necessary to Cool Down the load inside the drum in order
to
avoid
any harm to the user, when the laundry is removed.
Every timed or automatic
program ends with a Cool Down phase. The Cool Down duration depends on the carried
out program: Timed programs have a fixed Cool Down. In the Automatic programs, both
for
Condenser and Vented machines, the Cool Down duration depends on the temperature
felt
by
the
frontal
NTC. When it reaches
48°
C the cool
down sequence is
stopped,
but
anyway the overall sequence duration must be between
5 and
15 minutes.
D)
AUTOMATIC SEQUENCE OF SEL-DIAGNOSIS
(AUTO TEST) AND LIST OF THE ERROR CODES:
D1)
PREPARING AND STARTING THE SELF-DIAGNOSTIC SEQUENCE
(AUTO-TEST):
D1a)
Empty the Dryer and plug it in
. The Dryer must be OFF and the door CLOSED. Connect a
20 A/AC reading scale Ammeter, in series to one of the two phases of the mains wire.
D1b)
PUSH AND HOLD the START button and contemporarily turn the Programs Selector knob
to the position
#
3
.
The Delay Start LED
(for Condenser Dryers) or the
Acrylic/Synthetic
LED
(for Vented Dryers)
becomes lighted and stays lit with FIXED light
.
D1c)
RELEASE the
START button,
then
PUSH AND RELEASE IT TWICE, within
2
seconds
.
The
AUTO-TEST sequence is then automatically started.
D2)
AUTOMATIC CARRYING OUT OF THE SELF-DIAGNOSTIC SEQUENCE:
D2a)
For
3
seconds,
the
Delay
Start
LED
(Condenser
Type)
or
the
Acrylic/Synthetic
LED
(Vented Type) is lighted fixed. Buzzer beeps
2 times for Condenser Dryers and
1 time for
the Vented ones. The display visualizes
---
.
D2b)
All LEDs are lighted fixed. The BUZZER beeps once
.
Should any ERROR be present in the Memory, the machine
displays the last ERROR
that
happened in time. ALL LEDs blink at
2
Hz for a number of times equivalent to the Error
Number
(see
the Error
Description
Table) and contemporarily the display visualizes
the
error number.
i.e.
In
case of Clogged Filter Error
=
E
7
,
all
LEDs blink
7
times at
2
Hz
.
After
the
blinking
sequence, the
LEDs are
turned
off
for
3
seconds
and then the Error
Displaying
sequence
starts
again.
This
condition
is
maintained
until
the
moment
the
Start button is pressed
.
Press again the Start button, the buzzer beeps once and the test goes on
. N.B. the Start
button has to be pressed twice only if there is an error to display.
D2c)
All
loads
are
OFF
.
The
Eeprom
checks
for
any
internal
error
(E
6)
and
checks
the
conditions of both NTC
Temperature Sensing Probes, whose value of resistance must be
found within a specific range
(can be displayed E
5 in case of opened circuit and E
14 in
case of short circuit). In case of ERROR, the Dryer enters the ERROR MODE
(see par. D3).
D2d)
All LEDs are ON
.
Motor works clockwise
for
3 seconds and
Display shows "RIG"
.
D2e)
All
LEDs are OFF
.
Motor works clockwise
for
3 seconds and the
Heater is fed
.
Ammeter's
reading is
~
11 A
. Defective Heater displays E
8.
D2f)
All
LEDs
are
OFF
.
Heater
is
OFF.
Motor
is
OFF.
Recycle
PUMP is
ON
for
2
seconds
(in
Vented Dryers without any pump, only the related relay on PCB is fed).
D2g)
All LEDs are ON
.
Motor works counterclockwise
for
3 seconds and
Display shows "LEF"
.
D2h)
All LEDs are OFF
.
1 second pause.
D2i)
All
LEDs
are
OFF
.
Heater
is
OFF.
Motor
is
OFF.
Recycle
PUMP is
ON
for
2
seconds
(in
Vented Dryers without any pump, only the related relay on PCB is fed).
D2l)
The LEDs of the functions Refresh and Synthetics are ON. The LEDs over the buttons are
ON. Display shows "GO"
. Pressing each button, will switch OFF and ON a single LED. Push
two times all the buttons in sequence, to test the full functionality of the Power Board.
Every time a button is pushed, the buzzer beeps one time.
D2m)
Turn the
Program Selector back to OFF
, to end the Self-Diagnostic Sequence.
D3)
DESCRIPTION OF THE
"ERROR PHASE":
Error Phase is a special protective mode that's set every time a critical Error is detected:
•
All LEDs flash together at
4 Hz. The buzzer beeps at
1 Hz
(1
beep per second).
•
The motor rotates the drum in clockwise sense.
•
All buttons are inhibited, as long as the machine is in the Error mode.
•
All LEDs flash until the Program Selector is moved
(the door can be opened).
Every time the Dryer is found in Error Phase, it must be powered OFF and restarted. If the
Error Phase persists, then launch the AUTO-TEST to be informed about the Error Number.
D4)
LIST OF THE PRESENTLY AVAILABLE ERROR CODES:
Error
Error
Detecting
Possible
Machine
Recommended
Description
Num.
Condition
Malfunction
Behavior
Intervention
Full Tank
The error
The tank is
Drying Cycle is
Empty the tank,
E
3
Alarm
condition is
full of water
halted.
check the
detected if the
from
Delicates LED
pressure switch
pressure switch
condensation
blinks at
1 Hz.
and related wiring
goes on the
and has to be
Display
harness.
“FULL” and
emptied.
visualizes
“E
3”.
remains in that
condition for at
least
10”.
Selector
The selector is
The selector is
Drying Cycle is
Replace the
E
4
Error
shorted or open
damaged
halted.
Programs Selector
circuited
The display
(detection
10”
visualizes
“E
4”
long)
Front NTC
The Front NTC
Front NTC not
Drying Cycle is
Check Front NTC
E
5
Error
sensor is in short
connected or
halted.
and the related
or open circuit, or
damaged
The display
wiring harness.
it
has a resistive
visualizes
“E
5”.
value not
All LEDs flash
compliant with the
together
specifications
(generic error
(NTC value stays
condition).
out of the range
-
14° C
-
95° C for
longer time than
15 seconds.
Data Flash
The micro
Main board
Blocking Error
Program or
E
6
Error
controller can’t
not
(not displayed
replace the Power
find configuration
programmed
because the
Board.
parameters in
(Data Flash)
user interface is
Data Flash Block
powered OFF).
A, or checksum is
incorrect
Clogged
3 interventions of
The filter is
The Ventilation
Clean the filter.
E
7
Filter Alarm
the Heater's safety
clogged from
LED blinks at
1
thermostat in less
lint, correct
Hz. The Dryer
than
10 minutes.
ventilation is
switches from
not allowed.
High Power to
Reduced Power.
The Display
shows
“E
7”
Error
Error
Detecting
Possible
Machine
Recommended
Description
Num.
Condition
Malfunction
Behavior
Intervention
Thermal
The control has to
Rear
Non Blocking
Change the
E
8
Fuse
detect N as a
temperature
Error, Dryer
thermal fuse and
Intervention
heater feedback.
is
grown over
makes a Cool
check
If
L is detected for
the thermal
Down sequence
mechanical
more than
20
fuse threshold
and displays the
circuit
minutes, it means
(206° C)
error condition
(something
the thermal fuse is
with
1 Hz LEDs
occludes the
open.
blinking. Display
circuit), check
shows
“E
8”.
the Wiring.
Thermal
Control has to
The Thermal
The Error is not
Check the
E
9
Cut-Out
detect N as a
Cut-Out
displayed, but
conditions of the
Alarm
heater feedback.
switched off
only saved in
Heater and of
(automatic
If
it
detects L and
the heater,
Data Flash. The
the related
reset).
then N within
20
due to a
Dryer switches to
wiring, the filter
sec., this means
temporary
Reduced Power.
cleanliness and
there was a TOC
overheating.
the installation.
intervention.
Missing Load
During the Heat
The Dryer is
The Error is not
Correctly load
E
10
Stroke Phase
working
displayed, but
the Dryer.
(automatic cycles)
empty,
only saved in
the temperature
without any
Data Flash. The
increases over
80°
laundry load.
cycle goes on
C.
with a Cool Down
sequence and is
ended.
Rear NTC
The Rear NTC is
Rear NTC not
Drying Cycle is
Check Rear NTC
E
14
Error
(only
short circuited or
connected or
halted. All LEDs
and the related
Condenser
open circuited, or
damaged.
blink together
Wiring Harness.
Dryers)
has an incorrect
(generic error
resistive value
condition).
(out of the range
-
The Display
14° C
-
95° C) for
shows
“E
14”
more than
15 sec.
Heater
When the Heater
The heater
Drying Cycle is
Replace the
E
15
Relay glued
relay is opened,
relay could
halted. All LEDs
Power Card.
contacts
the control must
have glued
blink together
(Front
detect L through
contacts or, if
(generic error
Thermal
heater feedback.
the machine
condition).
Fuse for
If
it
detects N
for
Vented the
The Display
Vented
more than
8 sec.,
Front Thermal
shows
“E
15”.
machine)
relay is glued.
Fuse is
opened.
