Zanussi ZF 90/23 Service manual

SERVICE MANUAL
DISHWASHERS
© ELECTROLUX HOME PRODUCTS ITALY S.p.A.
Spares Operations Italy
Corso Lino Zanussi, 30
I - 33080 PORCIA /PN (ITALY)
Publication no.
599 35 90-23
Fax +39 0434 394096
Dishwasher with
EDW1100 electronic
control system
(Functionalities)
“DIVA”
EN
Production:
ZM - Solaro (IT)
Edition: 2006-02
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CONTENTS
1
2
3
4
4.1
Purpose of this manual ....................................................................................................................... 5
PRECAUTIONS .................................................................................................................................. 5
GENERAL CHARACTERISTICS........................................................................................................ 5
AESTHETIC CHARACTERISTICS: ................................................................................................... 6
CONTROL PANEL .............................................................................................................................. 7
4.1.1
4.1.2
4.1.3
4.1.4
4.1.5
4.1.6
4.2
Control panel.................................................................................................................................................7
ON / OFF button (S0)....................................................................................................................................7
Programme/Option buttons (S1÷S6).............................................................................................................7
Programme indicator LED.............................................................................................................................7
Indicator LEDs ..............................................................................................................................................8
Display ..........................................................................................................................................................8
Options................................................................................................................................................. 8
4.2.1
4.2.2
4.2.3
4.2.4
4.2.5
4.3
“ 3 in 1 Tablet”...............................................................................................................................................8
Extra rinse (rinse +).......................................................................................................................................8
“1/2 load”.......................................................................................................................................................8
“Sanitize”.......................................................................................................................................................8
Delayed start.................................................................................................................................................9
Cancelling a programme.................................................................................................................... 10
4.3.1
4.3.2
4.4
4.5
5
6
6.1
Reset ..........................................................................................................................................................10
Interruption of a programme (pause) ..........................................................................................................10
Power failure ...................................................................................................................................... 10
Sequence of operations..................................................................................................................... 11
HYDRAULIC CIRCUIT ..................................................................................................................... 12
ELECTRICAL COMPONENTS AND THEIR FUNCTIONS .............................................................. 13
EDW1100 Electronic control system ................................................................................................. 13
6.1.1
6.1.2
6.2
Functions of the circuit board ......................................................................................................................13
Memory in the control system .....................................................................................................................13
Specifications for actuators and sensors........................................................................................... 14
6.2.1
6.2.2
6.3
6.4
Components................................................................................................................................................14
Sensors.......................................................................................................................................................14
Power supply and programme selection ........................................................................................... 15
Fill circuit ............................................................................................................................................ 16
6.4.1
6.4.2
6.4.3
6.4.4
6.5
Level and anti-overflow pressure switch .....................................................................................................16
Fill system ...................................................................................................................................................16
Anti-flooding device.....................................................................................................................................16
Intervention of the anti-overflow system......................................................................................................16
Control of water fill phase .................................................................................................................. 17
6.5.1
6.5.2
6.5.3
6.6
Static fill ......................................................................................................................................................17
Dynamic fill..................................................................................................................................................17
Level stability control...................................................................................................................................17
Water fill time ..................................................................................................................................... 17
6.6.1
6.6.2
6.6.3
6.7
6.8
Static fill time...............................................................................................................................................17
Dynamic fill time..........................................................................................................................................17
Power supply interruption during water fill ..................................................................................................17
Level stability during washing ............................................................................................................ 18
Washing system ................................................................................................................................ 18
6.8.1
6.9
6.10
6.11
6.12
6.13
6.14
6.15
Control of the washing pump ......................................................................................................................18
Heating............................................................................................................................................... 19
Integrated detergent dispenser.......................................................................................................... 19
Disactivating the rinse-aid function .................................................................................................... 20
Drain .................................................................................................................................................. 20
Regeneration system......................................................................................................................... 21
Resin washing.................................................................................................................................... 21
Regeneration levels ........................................................................................................................... 22
6.15.1
6.15.2
6.15.3
7
Drying................................................................................................................................................ 23
7.1.1
8
8.1
“Turbo-dry” drying .......................................................................................................................................23
Automatic cycle (only on some models) ........................................................................................... 24
Turbidity sensor ................................................................................................................................. 24
8.1.1
8.1.2
8.2
9
Setting the regeneration level .....................................................................................................................22
“Blending” function ......................................................................................................................................22
Table of regeneration values.......................................................................................................................23
Calculating the degree of soiling .................................................................................................................24
Determination of the load ............................................................................................................................24
Automatic Programme ....................................................................................................................... 24
Alarms............................................................................................................................................... 25
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9.1
10
10.1
10.2
10.3
10.4
Table of alarms .................................................................................................................................. 25
Diagnostics mode / Options.............................................................................................................. 27
Accessing diagnostics mode ............................................................................................................. 27
Reading the alarms and activating the individual components ......................................................... 27
Cancelling alarm codes from memory / Testing the LEDs ................................................................ 28
Functional testing cycle ..................................................................................................................... 28
10.4.1
10.4.2
10.5
Options available to Service Engineers............................................................................................. 29
10.5.1
10.5.2
10.6
11
11.1
11.2
Selecting the extra cold rinse option ...........................................................................................................29
Disabling pulse washing .............................................................................................................................29
Exiting diagnostics mode ................................................................................................................... 29
ELECTRICAL FUNCTIONS.............................................................................................................. 30
Electrical circuit diagram.................................................................................................................... 30
Basic circuit diagram.......................................................................................................................... 31
11.2.1
12
12.1
12.2
14
14.1
15
Selecting the cycle ......................................................................................................................................28
Cycle phases ..............................................................................................................................................28
Key to circuit diagram .................................................................................................................................31
Table of programmes........................................................................................................................ 32
60cm Dishwashers ............................................................................................................................ 32
45cm Dishwashers ............................................................................................................................ 33
Checking the efficiency of the components ...................................................................................... 34
Measurement points on the board wiring connector.......................................................................... 34
QUICK GUIDE TO THE SPECIAL FUNCTIONS ............................................................................. 35
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1 Purpose of this manual
The purpose of this Service Manual is to provide Service Engineers, who already have the basic knowledge
necessary to repair household dishwashers, with technical information regarding dishwashers featuring the
EDW1100 electronic control system. These appliances are manufactured at Solaro (Italy).
The EDW1100 control system consists of a main circuit board and a control/display board. Both boards are
housed in a single plastic container. Some versions feature a display with only one digit.
This Manual describes:
• General characteristics
• Control panel and programmes
• Technical characteristics
• Guide to diagnostics
For more detailed information regarding the hydraulic circuits and the structural characteristics of the appliances,
refer to the Service Manual for presentation of the “DIVA” structure 599 35 55-25.
As regards the electric/electronic diagrams for a specific model please refer to spare parts list.
2 PRECAUTIONS
Electrical appliances must be serviced only by qualified Service Engineers.
Always remove the plug from the power socket before touching internal
components.
3 GENERAL CHARACTERISTICS
Power supply
Total power absorption
Mains water supply
Capacity
⇒
⇒
⇒
⇒
230 V / 50 Hz (limits 187÷254 V)
2300 W
Pressure Min. / Max. 5 − 80 N/cm2
9/12 place settings
Consumption (Energy Label):
Water
Energy
Duration of Cycle
⇒
⇒
⇒
Lt. 14
KWh 0,8
Min. 170
Controls
- ON/OFF
- Selection of programmes/options
- Displaying
B
B
B
B
Vertical on upper edge of the door
Two-pole switch (separate from the electronic board)
Button-actioned (min. 3, max. 6)
Display with one digit and/or LED
Washing system
Control of water level
Water heating
Temperature control
Type of drying
Safety devices / Alarms
B
B
B
B
B
B
Combined / Pulse
Pressure switch + Software
Tube-enclosed heating element
NTC temperature sensor
Active / Turbo
Total protection (hydraulic + Software)
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4 AESTHETIC CHARACTERISTICS:
Control panel with the maximum configuration: - VERTICAL Version
Control panel with the maximum configuration: - HORIZONTAL Version
Control panel with the maximum configuration with display: - VERTICAL Version
Control panel with the maximum configuration with display: - HORIZONTAL Version
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4.1
CONTROL PANEL
4.1.1
Control panel
The configuration of the control panel depends on the following:
Number of programme selection buttons (from a minimum of 3 to a maximum of 6)
Number of LEDs or presence of the one-digit display
[S0] - ON/OFF button
[S1] …
[S3] - PROGRAMME SELECTION buttons
[S4] …
[S6] – PROGRAMME SELECTION and/or OPTIONS buttons
[LD1] …
[LD3] - “PROGRAMMES” INDICATORS Leds
[LD4] [LD5] [LD12] - “PROGRAMMES and/or OPTIONS” INDICATORS Leds
[LD6] …
[LD8] - “DELAYED START TIME” INDICATORS Leds
[LD9] …
[LD11] - “CYCLE PHASES” INDICATORS Leds ([LD7]
[LD9] in the version with 1 digit)
[LD13] [LD14] - “SALT / RINSE-AID” INDICATORS Leds
4.1.2
ON / OFF button (S0)
The ON/OFF button is featured on all models in the range, and is used to switch the appliance on
and off. Switching off does not cancel the programme being executed.
4.1.3 Programme/Option buttons (S1÷S6)
These buttons are used to select the washing programme:
Press one of the buttons to select a washing programme
Within 3 seconds after selecting the programme, the user can enter the desired option(s) or select the
delayed-start function (if featured)
A specific LED is associated with each button
The dishwashers may have from a minimum of 3 to a maximum of 6 buttons
The following options may be featured:
- Delayed-start (3/6/9 hours in the versions without display and from 1 to 9 hours in the versions with
display)
- Half-load
- 3 in 1 tablet
- Extra rinse
- Sanitize
Buttons S1, S2, S3 are featured on all models; these are also used for certain Servicing functions
The functions of the various buttons depend exclusively on the software configuration of each
appliance. For more detailed information, refer to the table of programmes relative to the specific
model.
4.1.4
Programme indicator LED
Fig.1
Fig.2
1. When the appliance is switched on with S0 button (fig.1) the pre-selection phase is indicated
2. Pushing a programme button, the corresponding Led remains lit and, while the other switch off, the Led
of the current phase flashes (fig.2).
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4.1.5 Indicator LEDs
The indicator LEDs provide the user with the following information:
End of cycle: this LED is featured on all models.
Salt: indicates that the salt reservoir is empty. If the level of regeneration is set to “1” (no regeneration),
this LED remains unlit at all times.
Rinse-aid: indicates that the rinse-aid reservoir is empty.
Delay time: LEDs LD7, LD8, LD9 provide a sequential indication of the time to elapse before a delayed
start (3-6-9 hours)
4.1.6
Display
The one-digit display, if featured, shows only the delay time at the start: at every pressure of the
corresponding button the time increases by one hour till max. 9 hours.
The functions of the various LEDs depend on the software configuration of each appliance.
4.2
Options
4.2.1
“ 3 in 1 Tablet”
This option can be selected by pressing the corresponding button, and remains in memory until the same
button is pressed again. This option modifies the phases of the programme in order to optimize performance
when “3 in 1” detergent tablets are used:
variation of the duration of the programme and the temperatures required to dissolve the detergent
tablets.
reduction of water exchange (partial drain phases)
exclusion of introduction of rinse-aid
exclusion of regeneration / resin washing
4.2.2 Extra rinse (rinse +)
This option may be selected temporarily by pressing the button (if featured), or in “Service” mode. If this
option is set by the service engineer, it remains in memory until deactivated (see relative section).
This option adds one cold rinse (with pulse washing) with a duration of about 5 minutes.
4.2.3 “1/2 load”
The 1/2 load option optimizes the washing cycle when only a small load is placed in the appliance.
•
1/2 load button
When this button is pressed, certain parameters of the selected washing cycle are modified:
Exclusion of Pre-wash (if featured)
Reduction of the washing temperature
Reduction of the duration of the programme
•
Automatic ½ load
When this button is not featured on the control panel, certain programmes may feature automatic
detection of the half load. This system measures variations in the temperature during the initial heating
phase. The temperature and the duration of the wash are both reduced.
This option is not available in the following cycles: “Intensive”, “Short 30 minutes”, “Soak”, “Heating
plates” and “Glassware”.
4.2.4 “Sanitize”
This is a special option used to sanitize the dishes/cutlery. However, it is NOT compatible with the
“Glassware” programme.
During the final rinse, the temperature is maintained at 68°C for 10 minutes.
If used together with the SOAK option, the system performs a special sanitizing programme which lasts
approximately 46 minutes (1 hot rinse followed by 10 minutes at a constant temperature of 68°C)
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4.2.5
Delayed start
To select the delayed-start time:
1. Press button S0 to switch on the appliance.
2. Press a button to select the desired programme: the corresponding LED lights: for ex. S2, the relative
LED lights up.
3. Press the button repeatedly to select the delayed-start time:
•
Version with LED:
o The Led LD8 lights to indicate that the function is active and that a 3 hour time has been
set (LD8 3; LD7 6; LD6 9 ore).
o Press the button once again to cancel the delayed-start time: the LEDs LD6÷LD8 switch
off.
o The delayed-start countdown begins when the door is closed:
When the countdown is at 9 hours, LED LD6 remains lit.
When the countdown reaches 6 hours, LED LD7 remains lit.
When the countdown reached 3 hours, LED LD8 remains lit.
When the countdown time has elapsed (0 hours), LEDs LD6 – LD8 switch off
and the cycle starts.
•
Version with display:
o The display lights up and shows “1” to indicate that the function is active and that a 1
hour time has been set.
o Pressing the button once again the time increases every hour till max. 9 hours and then it
resets.
o The countdown starts when the door is closed: the display indicates the hours till “0” and
the programme starts.
Version with Led
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4.3
4.3.1
Cancelling a programme
Reset
To cancel a programme that has already started:
1. Open the door carefully and press buttons S2 - S3
together for approximately 2 seconds.
2. The salt and rinse-aid LEDs light: the programme is
cancelled and the appliance is in pre-selection mode.
3. Set the new cycle.
4.3.2
Interruption of a programme (pause)
If the button [S0] is pressed the power supply is cut and the appliance switches off.
By pushing the button [S0] again, the appliance starts and the cycle starts from the point at which it was
interrupted.
If the door is opened, the appliance is powered (the power loads are deactivated).
The LED [LD..] of the selected programme and the Option LED remain lit.
Closing the door again the cycle restarts with a little delay from the point at which it was interrupted.
Important! If the appliance is switched off or if the door is opened for more than 30 seconds during
the drying phase, the cycle is considered to have been terminated after the regeneration phase; when
the appliance is switched on again, it returns to programme selection mode.
4.4
Power failure
The Power Failure function maintains the information relative to the cycle status even in the even of a power
outage; when the power supply is restored, the cycle resumes from the point at which it was interrupted.
If the power failure occurs during the drying phase, the cycle is considered to have been terminated after the
regeneration phase.
The power failure condition has been defined as follows:
During a Power Fail all the loads are off in order to enable, through the energy stored in the power
capacitor of the control board, to save the data in the EEPROM and therefore when the power is
restored the cycle can restart from the point at which it was interrupted.
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4.5
Sequence of operations
SEELCTING THE CYCLE
1. Press S0 to switch the appliance on.
All the LEDs corresponding to the programme/
option buttons light.
2. Press the button corresponding to the desired
programme.
The corresponding LED remains lit and the
relative cycle phase LED starts flashing.
EXECUTION OF THE CYCLE
START
3. If desired, select the delayed-start function or
other options (if featured).
4. The settings entered can be modified before
closing the door.
5. During the execution of the cycle, the relative
LED remains lit and the LED of the current
phase flashes.
6. To interrupt the current programme:
Open the door and, if necessary, press S0 to
switch off the appliance.
To re-start the appliance, press S0 again and
re-close the door.
7. To cancel the current programme:
Press S2 – S3 buttons at the same time for
about 2 seconds.
The salt and rinse-aid LEDS light.
Press the desired programme button again.
END
8. At the end of the programme:
The END OF CYCLE LD11 LED lights; to
switch off the LED, open and re-close the door.
9. Press S0 to switch the appliance off.
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5 HYDRAULIC CIRCUIT
KEY
1 - Fill hose
2 - Fill hose with "Aquacontrol" device
3 - Fill solenoid
4 - Regeneration solenoid
5 - Air-Break
6 - Steam condenser
7 - Regeneration chamber
8 - Salt reservoir
9 - Resin reservoir
10 - Level pressure switch
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11 - Anti-overflow pressure switch
12 - Sump assembly
13 - Washing pump
14 - Tube-enclosed heating element
15 - Drain pump
16 - Non-return valve
17 - Drain hose
18 - Drying Duct / Fan
19 - Anti-flooding device
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6
ELECTRICAL COMPONENTS AND THEIR FUNCTIONS
6.1
EDW1100 Electronic control system
The EDW1100 control system consists of a main circuit board and a
control/display board. Both boards are housed in a plastic container.
6.1.1
Functions of the circuit board
DISPLAY BOARD
LEDs
Buttons
μP
ELECTRICAL
LOADS
SENSORS
MAIN CIRCUIT BOARD
The circuit board receives signals relative to the cycle settings via the control/display board. The buttons
and LEDs are also mounted on this board.
The board also powers all the electrical components (solenoid valves, washing pump, detergent/rinseaid dispenser, drain pump, heating element, fan motor).
The board controls the temperature of the washing water via an NTC sensor, as well as the speed of
rotation of the washing pump according to the signal received from the tachymetric generator.
The circuit board monitors the status of the pressure switch and the rinse-aid/salt sensors.
6.1.2
Memory in the control system
μP
Asynchronous
external serial
port
ROM
Power Fail and
machine status
RAM
Synchronous
internal serial
port
EEPROM
(external
to the μP)
Configuration of
the appliance
Description of the
cycle
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The main circuit board features an EEPROM memory (external to the microprocessor) which stores in
memory data relative to the configuration, description of the cycle, cycle status in case of a power failure,
and any alarm conditions.
The configuration data (entered in the factory using a computer with a DAAS interface) determine the
functionalities of the appliance (number and type of programmes, options, LEDs etc.).
6.2
6.2.1
Specifications for actuators and sensors
Components
POWER AVAILABLE
TYPE OF ELECTRONIC
CONTROL
Wash pump
Max 250W
Triac
Drain pump
Max 100W
Triac
Heating element
Max 2100W
Relay
Water fill solenoid
Max 10W
Triac
Regeneration solenoid
Max 10W
Triac
Detergent and Rinse-aid solenoid
Max 10W
Triac
Fan motor
Max 10W
Triac
TYPE OF COMPONENT
6.2.2
Sensors
TYPE OF ELECTRONIC
SIGNAL
TYPE OF
COMPONENT
Salt sensor
Digital 5 Volt
Reed
Rinse-aid sensor
Digital 5 Volt
Reed
Analogue 5 Volt
* NTC
Analogue 5 Volt
Opto-electronic
Frequency
Tachymetric generator
Level sensor
Digital - High voltage
Pressure switch
Door closure sensor
Digital - High voltage
Switch
Anti-flooding sensor
Digital - High voltage
Switch
TYPE OF SENSOR
Temperature sensor
Turbidity sensor
(certain models only)
Tachymetric sensor
*
NTC Temperature sensor
* NTC COMPARATIVE VALUES
Temperature
°C
10
25
60
90
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Nominal value
Ω
9655
4850
1205
445
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6.3
Power supply and programme selection
The main board is powered by the
closure of contacts 1-5 and 2-4 of the ON/OFF
button (PU). The connectors used in this case
are A2 (neutral) and B1 (line).
The control/display board (user interface)
is powered at 5V by the main board, making
programme selection possible.
When the door is closed, the main board
detects the closure of the contacts of the switch
(IP) across connectors B2-D1, and starts the
washing programme. The same switch powers
the electrical components.
When the door is opened, the power loads
are disconnected from the power supply and the
cycle is paused.
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6.4
Fill circuit
6.4.1
•
•
Level and anti-overflow pressure switch
The level of water introduced into the appliance is determined by the level pressure switch
The anti-overflow pressure switch ensures that the level of water does not exceed the safety threshold
(causing overflow from the door).
6.4.2
Fill system
The water fill solenoid valve is powered by triac
TY2 on the electronic board (connector C7), by
the door switch (IP) and by the anti-flooding
microswitch (DA).
The level of water in the sump is monitored by
the pressure switch (RL). The electronic board
constantly monitors the status of the pressure
switch via a “sensing” line connected to
connector C5:
EMPTY if the contacts are closed on 1-2
FULL if the contacts are closed on 1-3
6.4.3
Anti-flooding device
Intervention of the anti-flooding device causes the contacts of the microswitch (DA) to open, thus
disconnecting the solenoid valve from the power supply.
6.4.4
Intervention of the anti-overflow system
If the anti-overflow pressure switch (PA) should
intervene, the closure of the contact on FULL
(1-3) powers the drain pump (PS). The pump
remains in operation until the contact returns to
EMPTY (1-2).
If the door is opened or the appliance
is switched off, the drain pump is
deactivated.
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6.5
Control of water fill phase
The quantity of water necessary to carry out the washing cycle is determined exclusively by the closure of
the electrical contact of the pressure switch, which changes from EMPTY to FULL. This system ensures
that, if the pressure switch re-opens on EMPTY, further water is introduced until it returns to FULL.
The water fill phase consists of the following sub-phases:
6.5.1 Static fill
With the motor switched off, the fill solenoid valve is energized and water is introduced into the appliance
until the pressure switch signal switches to FULL.
6.5.2 Dynamic fill
The dynamic fill is obtained by switching on the washing pump whose rotation causes the pressure switch to
switch to EMPTY. Subsequently, the fill solenoid valve is energized and water is introduced until the switch
returns to FULL.
The speed of rotation of the motor determines the quantity of water introduced, since the electronic control
system switches on the washing pump at a variable speed which depends on the washing system that will
be performed in the phases subsequent to the water fill:
In the case of “ctrl“ washing (at constant speed), the speed of rotation increases gradually to 2800 rpm
In the case of “pw“ (pulse) washing, the speed of rotation increases gradually to 1900 rpm
N.B.- Refer to the Table of Programmes for the definition of the washing system.
6.5.3 Level stability control
The hydraulic circuit operates with maximum efficiency when the pressure switch signal remains stable on
FULL. In practise, the quantity of water circulating in the sump allows the motor to run without speed
fluctuations caused by cavitation.
When the pressure switch signals FULL, the fill solenoid valve switches off.
6.6
Water fill time
The aperture of the solenoid valve has a pre-set overall duration, which is subdivided into the various subphases of the fill:
6.6.1 Static fill time
T.S. = max 90 seconds: This is the maximum time within which the pressure switch must switch to FULL. If
the FULL signal is not received from the pressure switch within this time, the electronic control system
interrupts the washing cycle and the appliance enters alarm condition [1 0].
6.6.2 Dynamic fill time
T.D. = T.S. x 3: This is the maximum time allowed for the entire fill phase within which the pressure switch
signal must stabilize on FULL.
• If the pressure switch signal does not stabilize on FULL within this period (T.S. x 3), the electronic
control system switches off the fill solenoid (and the heating element, if switched on), and then allows
the washing cycle to proceed until it is completed. In this situation, the alarm condition [F 0] is not
displayed to the user, but may be accessed by the Service Engineer using a specific procedure.
• If, during a 2800 rpm dynamic fill, the pressure switch never closes on FULL during the initial 60
seconds, the electronic control system interrupts the washing cycle and the appliance enters alarm
condition [1 0].
6.6.3
Power supply interruption during water fill
If the water fill phase is interrupted by opening the door or due to a power failure, the contents of the
counters are stored in memory; when the door is re-closed or when the power supply is restored, the water
fill resumes from the point at which it was interrupted; the new counter values are added to those previously
memorized.
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6.7
Level stability during washing
Once the fill phase has been completed, the cycle proceeds to the washing phase. The washing phase is
carried out using cold or heated water, and the status of the pressure switch is monitored constantly to
ensure that the hydraulic system functions correctly. Water replenishment cycles may be performed if
necessary.
If the pressure switch returns to EMPTY during the washing phase, the fill solenoid is energized for a
maximum time equivalent to T.S. x 3 (maximum allowable total fill time).
If this time is exceeded, the washing cycle is completed, but no further supplementary fills are
performed. In this situation, alarm condition [F 0] is stored in memory. This alarm code is not displayed to
the user, but can be accessed by the Service Engineer using a specific procedure.
6.8
Washing system
The appliance features the classic washing system in which the mechanical washing action is
obtained by the rotation of the washing pump which, by ducting water into the hydraulic circuit, actions the
two spray arms simultaneously.
The washing pump is actioned by an asynchronous motor with a start-up capacitor (3µF - 450VL).
The washing pump rotates in a counter-clockwise direction (seen from the impeller side) and is fitted with a
tachymetric generator.
In order to optimize the washing programmes, two washing
systems can be applied:
“ctrl“
“pw“
Washing at constant speed (2800 rpm) (maximum speed of the motor).
Pulse washing at 1600 - 2800 rpm. This washing system is controlled by the electronic
control system, which actions the washing pump alternately at two speeds (minimum and
maximum speed) for short periods.
MOTOR SPEED
PERIOD OF OPERATION
Maintenance
1600 rpm
4 sec
PW1 Pulses
2800 rpm
0.8 sec
The ctrl and pw speeds are configurable. For further details, refer to the cycles tables relative to the specific
model.
6.8.1
Control of the washing pump
The washing pump (PL) is powered by triac
TY4 on the circuit board (connector C3), by the
door switch (IP) and by the ON/OFF switch
(PU).
The main circuit board controls the speed of
rotation according to the signal received from
the tachymetric generator (T) connected to
connectors E1-E2.
This signal is used for:
Control of the washing system (ctrl or pw)
Control of the pump motor safety devices
and the relative alarms
Control of the dynamic fill
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6.9
Heating
The heating element is enclosed in a
protective tube, and is used to heat the washing
water (but does not switch on during the drying
phase). The heating element is fitted to the
outlet of the washing pump and connected to
the duct which feeds the upper spray arm.
The heating element (RR) is powered by
relay RL1 on the circuit board (connector A1),
by the ON/OFF switch (PU) and by the level
pressure switch (RL), which must be set to
“FULL” (contact closed on 1-3).
Two safety thermostats are fitted to the
heating element:
- an automatic-reset thermostat which
intervenes at 98°C
- a thermostat with a thermal fuse (206°C).
The temperature of the water is controlled
by the main circuit board via an NTC sensor
(ST) which is connected to connectors G5-G6.
6.10 Integrated detergent dispenser
The detergent dispenser is a plastic container consisting of two separate
sections. The first (A) contains the detergent; the second (B) contains the Rinseaid.
The dispenser is of the single-coil type, and uses a single electrical coil,
connected to a mechanical system, for both functions.
When the coil is energized, it actions the mechanism via a series of
levers to introduce detergent in a determined sequence (first detergent, then
rinse-aid).
B
A
The coil of the detergent dispenser
(DD) is powered by the circuit board via triac
TY5 (connector D7) at certain points during the
cycle, thus ensuring correct dosage.
The circuit is closed by the contacts of
the ON/OFF switch (PU) and the door switch
(IP).
Some models feature a rinse-aid sensor whose
reed contact (SB) is connected to connectors
F3-F4 on the circuit board.
The absence of rinse-aid causes the
contact to close, which lights the corresponding
LED (on the display board).
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6.11 Deactivating the rinse-aid function
Introduction of rinse-aid may be deactivated by the user by pressing a combination of buttons. In this
case, the Rinse-aid LED (if featured) will also be deactivated.
1. Cancel any cycles that may have been selected (see
4.3.1).
2. Press S0 to switch the appliance on.
The programme LEDs and the salt and rinse-aid LEDs
must be on to indicate the pre-selection phase.
3. Press buttons S2-S3 simultaneously and hold down until
LEDs LD1, LD2 and LD3 begin to flash.
4. Press button S2: LEDs LD1 and LD3 switch off, while LD2
continues to flash.
The End of cycle LED remains lit that the rinse-aid
function is operative.
5. Press button S2 again to deactivate the rinse-aid.
The end of cycle LED switches off to indicate that the
rinse-aid function is inoperative.
6. To store this setting in memory: press button S0 and
switch the appliance off; alternatively, wait for 60 seconds
(LD1 - LD6 light)
6.12 Drain
The drain pump (PS) is powered by triac TY3
(connector C1) and via the contacts of the
ON/OFF switch (PU) and the door switch (IP).
At the end of the drain phase, a control
procedure is performed to check that the
contact of the level pressure switch is open on
EMPTY. If this is the case, the appliance
proceeds to the subsequent phase.
If, as a result of a problem in the drain phase,
the pressure switch contact remains closed on
FULL (i.e. if there is water in the hydraulic
circuit), the drain phase is repeated.
On completion of this second drain phase, the
status of the pressure switch is again checked.
If it is still closed on FULL, alarm [i20] is
generated (failure to drain).
The time-out for each of these two phases is
120 seconds.
N.B. The washing programmes always begin with a drain phase.
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6.13 Regeneration system
Regeneration of the softening system, whose duration is approximately 4 minutes, is normally
performed at the beginning of the drying phase.
Each time regeneration is performed (the regeneration solenoid 4 is energized), the chamber is
completely emptied (about 230 cc of water).
Regeneration is controlled by the electronic control system “Ad Hoc”, i.e. not at each washing cycle, but
rather at intervals determined by the level of regeneration selected.
If level [1] is selected, regeneration is never performed and the SALT
LED (if featured) always remains unlit.
If level [10] is selected, regeneration is performed twice during each cycle; first at the end of the washing
phase, and then at the beginning of the drying phase.
The regeneration solenoid (ER) is powered
by triac TY1 (connector C9 on the circuit board)
and by the contacts of the ON/OFF switch (PU)
and the door switch (IP).
Some models feature a salt sensor whose
reed contact (SS) is connected to connectors
F1-F2 on the circuit board.
The absence of salt causes the contact to
close, which lights the corresponding LED (on
the display board).
6.14 Resin washing
Washing of the resins contained in the softening system is performed at the beginning of each washing
cycle. In practise, the solution of salty water (regeneration water) remains deposited in the resin container
from the end of the last completed cycle until the subsequent cycle.
If the regeneration level is set to [10], washing of the resins is performed once at the beginning of the
washing cycle and then again immediately after the regeneration process performed at the end of the
washing phase.
The regeneration sequence is as follows:
a.
b.
c.
d.
e.
Drain (30 seconds)
Water fill to correct level
Drain (10 seconds)
Water fill (15 seconds)
Complete drain
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6.15 Regeneration levels
The counter for execution of the “Ad Hoc” regeneration process is governed by the electronic control
system on the basis of the duration of the fill phases (i.e. the quantity of water introduced), and NOT on the
number of cycles.
Regeneration can be set to one of 10 levels. If regeneration is set to level [1], the procedure is not
performed and the Salt LED remains unlit.
6.15.1 Setting the regeneration level
1. Cancel any cycles that may have been selected
(see 4.3.1)
2. Press button S0 to switch the appliance on.
The programme LEDs and the salt and rinse-aid
LEDs must be on to indicate the pre-selection
phase.
3. Press buttons S2-S3 simultaneously and hold down
until LEDs LD1, LD2, LD3 start to flash.
4. Press button S1: the LEDs LD2, LD3 switch off,
while LD1 continues to flash.
The End of cycle LED emits sequences of flashes,
whose no. indicate the regeneration level, separated
by a pause.
NB: Press button S1 again to increase the regeneration
by one level.
When the 10th level has been reached (10 flashes),
press S1 again to pass to 1st level.
5. To store this setting in memory: press button S0 and
switch the appliance off or wait 60 seconds
(LD1÷LD6 switch on)
6.15.2 “Blending” function
This function is performed inside the fill tank during the water fill phase which, depending on the position of
the selector, automatically blends the softened water with the unsoftened water present in the appliance.
In practice, the softened water is introduced into the appliance through the softening system, while the
unsoftened water flows via an open by-pass duct directly through the steam venting ring.
If the level of regeneration is set to between 1 and 4, it is advisable to activate the BLENDING function to
mix softened water with unsoftened water.
This function optimizes the consumption of salt thus preventing the possibility of corrosion of glass recipients
due to excessively soft water.
When the BLENDING function is activated, the percentage of unsoftened
water introduced into the dishwasher is 15%.
The BLENDING function is activated using the selector knob located inside
the tub, on the left side, in the vicinity of the steam venting grille.
Position of selector
pos.1 = blending ACTIVATED.
pos.2 = blending DISACTIVATED.
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6.15.3 Table of regeneration values
Water introduced
Aperture of
Position of
between
regeneration
selector in
regeneration cycles
solenoid
the tub
Litres
sec
nº
--0
1
130
240
1
94
240
1
70
240
1
53
240
2
37
240
2
20
240
2
15
240
2
10
240
2
3
2x240
2
* “5” = factory-set level
Position of selector in tub “2”
Level
Number of “end of
cycle” LED flashes
1
2
3
4
*5
6
7
8
9
10
nº
1
2
3
4
5
6
7
8
9
10
Hardness of the
water
º F (TH)
0>8
9 > 14
15 > 20
21 > 30
31 > 40
41 > 50
51 > 60
61 > 70
71 > 80
81 > 90
º D (dH)
0> 4
5>8
9 > 11
12 > 17
18 > 22
23 > 28
29 > 33
34 > 39
40 > 45
46 > 50
7 Drying
In these dishwashers, the dishes are dried by means of a
steam condensation process. The drying system is based on
the circulation of the hot air produced during the hot rinse, in
which the steam circulates inside the condenser of the fill
tank.
The condenser is a condensation chamber filled with water
(cold wall); contact between the hot air and the cold wall
results in the condensation process.
Depending on the type of appliance, one of two drying
systems is used:
- "ACTIVE - DRY" drying
- "TURBO - DRY" drying.
7.1.1
“Turbo-dry” drying
Certain models feature a forced-air drying
system.
The steam is drawn in by the fan located inside
the upper duct and routed towards the condenser
in the fill tank, from which it returns to the tub
through the steam venting ring.
The fan motor (MV) is powered by triac TY6
(connector D3 on the circuit board) and by the
contacts of the ON/OFF switch (PU) and the door
switch (IP).
The drying time is variable and pre-defined for
each washing cycle.
In some programmes, the fan remains in operation
for about 20 minutes after the end of the cycle; if
the door is opened, the fan switches off.
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8 Automatic cycle (only on some models)
8.1
Turbidity sensor
Certain models which feature the turbidity sensor may also feature a special
“automatic” programme which optimizes the cycle according to the size of the load
and the degree of soiling. This sensor is positioned externally to the sump, in direct
contact with the water.
A single container houses the NTC sensor (for control of the washing temperature)
and the infra-red opto-electronic sensor, which controls the turbidity of the water and
therefore the degree of soiling that it contains.
8.1.1
Calculating the degree of soiling
Measurement of the level of turbidity is
performed during the cold pre-wash. The
photoemitting diode, which is powered by the
circuit board (connector G7), transmits a beam
of light to the photoreceiver. The circuit of the
photoreceiver (connector G8 on the circuit
board - G6 is the common contact) is traversed
by a certain current whose intensity is
proportional to the quantity of light received (i.e.
inversely proportional to the level of turbidity).
The microprocessor measures the signal
present in the circuit, and can thus determine
the most appropriate cycle according to the
quantity of soiling present in the water.
8.1.2
Determination of the load
temperature
The quantity of dishes in the load (full load or 1/2
load) is determined during the initial heating
phase during washing by controlling the rate at
which the temperature of the water increases
(NTC sensor, connector G5).
1/2 load
threshold
Full load: when the inclination of the curve is
below a certain threshold which is memorized
as standard
full load
Half load: when the inclination of the curve is
above the standard threshold
time
8.2
Automatic Programme
The table below shows the variations in the programme phases according to the type of soiling and the size
of the load.
Type
Load
Full
Full
Half
Half
SOI/TD PR
Programme phases
Heavy
soil
Yes
No
Yes
No
Pre-wash
Wash
Cold
68º C
55º C
55º C
50º C
First rinse
Second rinse
Hot rinse
Drying
68º C
24 min.
Cold
Cold
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9 Alarms
In the event that an abnormal situation should occur which might affect the correct operation of the appliance, the circuit board causes a safety system to intervene. In
most cases, this interrupts the washing cycle. The last three alarm conditions are stored in memory.
Using a special procedure available only to Service Engineers, it is possible to read all the alarms stored in memory. However, only four current alarm conditions are
displayed to the user.
The alarms are displayed by means of a sequence of flashes of the END OF CYCLE LED: the display does not indicate any alarm condition.
9.1
Table of alarms
Type of
alarm
i10
No. flashes
of end-ofcycle LED
and “beeps”
1
Displayed
to the
user
Description of the alarm condition
YES
Water fill time-out
(The pressure switch does not close on
FULL after 90 sec. static fill, or never
closes on “FULL” during the initial 60
sec of the dynamic fill at 2800 rpm)
The drain pump switches on, then
the cycle stops
The drain pump switches on, then
the cycle stops
Machine status
Possible causes
Tap closed; water mains pressure too low; fill
solenoid / wiring faulty; hydraulic circuit of pressure
switch obstructed; level pressure switch / wiring
faulty; circuit board faulty (solenoid triac shortcircuited)
Drain circuit obstructed/blocked; drain pump
interrupted or jammed (foreign bodies); level
pressure switch blocked on FULL (1-3); hydraulic
circuit of pressure switch obstructed; wiring faulty;
circuit board faulty
Water leakage from the tub - sump and various
connections (pump, upper spray arm duct etc.);
floating sensor blocked mechanically; microswitch
faulty; fill solenoid blocked mechanically; circuit
board faulty (solenoid triac short-circuited); wiring
faulty
i20
2
YES
Water drain time-out
(The pressure switch does not return to
EMPTY after two drain phases lasting
120 seconds) (**)
i30
3
YES
Intervention of Anti-flooding system
(the drain pump switches on)
The cycle is interrupted and the
drain pump switches on
YES
Motor triac short-circuited
(the washing pump runs uncontrolled at
maximum speed)
Water fill to level (if necessary),
deactivation of the other
actuators, cycle interrupted. The
washing motor runs at maximum
speed and the alarm is displayed.
Circuit board faulty
The cycle stops and the drain
pump switches on.
Heating element faulty; Safety thermostats (open);
Wiring faulty; NTC-sensor (thermal contact faulty);
Scarce circulation of water in the tub; Wash pump
faulty (damaged impeller) Main electronic board
faulty
i50
i60
5
6
YES
Overheating
Temperature higher than 78°C
(**) If inside the appliance there is no water at all (correct drain) but this alarm is displayed, check the heater (possible dispersion) and the anti-interference suppressor.
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Type of
alarm
i60
No. flashes
of end-ofcycle LED
and “beeps”
6
Displayed
to the
user
Description of the alarm condition
Machine status
Possible causes
NO
Heating Time-out
(the check takes place every 3 minutes:
the temperature must increase by a
certain amount at each step)
The programme continues to the
end without heating (the washing
result will probably be
unsatisfactory)
Heating element faulty; intervention of safety
thermostats (open); wiring faulty; NTC sensor (poor
thermal contact); insufficient water circulating in the
tub; washing pump faulty (impeller stripped); circuit
board faulty.
i70
7
NO
NTC sensor short-circuited or open
i80
8
NO
Communication error between the
microprocessor and the EEPROM
i90
9
NO
Problems with software configuration
ib0
11
NO
Problems with the turbidity meter
[if featured] (Calibration Time-out)
NO
Problems with the washing motor: no
signal from the tachymetric generator
(washing pump powered, but no signal
from the generator)
NO
Water replenishment Time-out
(3 times during the T.S. Time-out)
id0
iF0
13
15
The programme continues to the
end without heating (the washing
result will probably be
unsatisfactory)
Machine inoperative: no selection
possible (*)
The fault occurs when switching
on: no selection possible (*)
The programme continues as if a
“heavy soiling” condition had been
detected.
The heating element is switched
off. If the fault persists after the
Time-out, the washing pump
operates at maximum speed and
the alarm code is stored in
memory (the cycle continues)
The cycle continues until the next
phase without supplementary fills
and without heating. The error is
cancelled on completion of a drain
phase.
NTC sensor faulty; wiring short-circuited / open;
circuit board faulty.
Circuit board faulty.
Circuit board faulty
(configuration software incorrect).
Turbidity sensor faulty; sensor wiring faulty; circuit
board faulty.
Motor winding interrupted / short-circuited; motor
jammed (foreign bodies); wiring to washing motor
faulty; motor capacitor faulty; Tachymetric
generator interrupted / short-circuited; circuit board
faulty.
Dishes upside-down; central filter clogged;
excessive foam; leaks from the sump-pressure
switch coupling; pressure switch faulty / false
contacts.
(*) If it is not possible to access diagnostics mode, switch the appliance off and then on again to check that this is not caused by a temporary fault. Before replacing the
circuit board, check that it is correctly powered by controlling the following
Continuity of the power cable
Correct operation of the suppressor
Closure of the door switch contacts
Continuity of the wiring between connectors A2/B1 on the circuit board and the suppressor.
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10 Diagnostics mode / Options
A single procedure can be used by Service Engineers to access the diagnostics system. After accessing
diagnostics mode, the Engineer can:
• Read / cancel the alarms
• Check for correct operation of the various components of the appliance
• Start the diagnostics cycle
• Select the options available to Service Engineers
10.1 Accessing diagnostics mode
1. Switch off the appliance, press buttons S1-S3
simultaneously.
2. Press button S0 to switch the appliance on, holding
buttons S1-S3 down, till the LEDs LD1, LD2, LD3 start to
flash (about 4 sec.)
10.2 Reading the alarms and activating the individual components
1. Access diagnostics mode (see 10.1)
2. Press button S1 to start the function:
LEDs LD2 and LD3 switch off; LD1 continues to flash.
The first memorized alarm is displayed: the End of cycle
LED starts to flash, with pauses between each series of
flashes, to indicate the alarm. (for the decodification see
summary table of alarms – pages. 25, 26).
3. Press button S1 again to display the second alarm.
4. Press button S1 again to display the third alarm
5. Press button S1 for the fourth time: the system proceeds to
the activation of the various actuators.
The LD2 LED flashes to indicate that the alarm reading
has been completed and the components are now being
tested.
6. Press button S1 to activate the following:
4th pressing: regeneration solenoid valve
5th pressing: drain pump
6th pressing: water fill solenoid to level
7th pressing: heating (only if water level is OK)
8th pressing: washing pump
9th pressing: detergent/rinse-aid dispenser
10th pressing: drying fan (if turbo-dry)
7. Each of the above steps may be repeated by pressing
button S1 sequentially.
The components are powered when the door is closed: open the door to select a different
component, then re-close the door.
If button S1 is not pressed for 60 seconds, the system automatically exits diagnostics mode.
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10.3 Cancelling alarm codes from memory / Testing the LEDs
It is good practise to cancel the alarm codes:
•
•
after reading the alarm code, to check whether it is repeated during the diagnostics test.
after effecting repairs, to check whether it is repeated during testing.
1. Access diagnostics mode (see 10.1)
2. Press button S2 to cancel the alarms
All the LEDs and the display, if featured, flash for about 30
seconds and the buzzer sounds. The function terminates
automatically and the machine enters pre-selection mode.
10.4 Functional testing cycle
This is an abbreviated washing programme (15 min) which allows the Service Engineer to test all the
functions that comprise a traditional washing cycle; in effect, the system simulates a normal cycle.
10.4.1 Selecting the cycle
1. Access diagnostics mode (see 10.1)
2. Press button S3 to start the cycle.
LED LD3 flashes for the entire duration of the cycle.
During the course of the test cycle, the programme
behaves as in a normal cycle; the PAUSE and CANCEL
options are accessible.
10.4.2 Cycle phases
The test cycle consists of:
• A cold rinse phase
• A warm washing phase lasting 12 minutes
N.B.: At the beginning of the subsequent programme (i.e. after the test cycle), the resins are washed.
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10.5 Options available to Service Engineers
In particular circumstances, i.e. if the user reports unsatisfactory washing results, a special procedure,
available only to Service Engineers, can be used to select two supplementary options designed to improve
performance:
• Extra cold rinse.
• Disabling of pulse washing (PW), replaced by continuous washing (Ctrl).
10.5.1 Selecting the extra cold rinse option
Using the procedure described below, it is possible to add a supplementary cold rinse in all the
washing programmes. This improves the quality of the rinse in case of necessity.
1. Access diagnostics mode (see 10.1)
2. Press buttons S1-S2 simultaneously:
The end of cycle LED indicates the status of the function:
• If the end of cycle LED is switched off, the extra rinse is not
selected.
• If the end of cycle LED is lit, the extra rinse has been
selected.
3. Press button S1 to activate and deactivate this function.
4. To store the operation in memory: press button S0 and
switch the appliance or wait 60 seconds.
10.5.2 Disabling pulse washing
Certain programmes use the pulse washing system (PW). Using the procedure described below, the
Service Engineer can modify this system so that Ctrl (continuous) washing is used in all those programme
which normally use the PW system. This intensifies the washing action even in delicate programmes.
1. Access diagnostics mode (see 10.1)
2. Press buttons S2-S3 simultaneously till LD2 starts flashing:
The End of cycle LED indicates the status of the function:
• If the end of cycle LED is switched off, the continuous
washing system is used.
• If the end of cycle LED is lit, the pulse washing system is
used.
3. Press button S2 to activate and deactivate this function.
4. To store the operation in memory: press button S0 and
switch off the appliance or wait 60 second (LD1 ÷ LD6
light)
10.6 Exiting diagnostics mode
1. To exit the diagnostics cycle press button S0 and switch
off the appliance or wait 60 seconds: the LEDs LD1÷LD6
light and the appliance sets in selection mode.
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11 ELECTRICAL FUNCTIONS
11.1 Electrical circuit diagram
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11.2 Basic circuit diagram
11.2.1 Key to circuit diagram
AR = Orange
BI = White
BL = Blue
CE = Light blue
GI-VE = Yellow-Green
MA = Brown
SOI/TD PR
NE = Black
RO = Pink
VI = Lilac
AA/DA = Anti-flooding device
Beamer = Beamer
CO = Capacitor
DD = Detergent/ Rinse-aid
dispenser
EC = Fill solenoid
ER = Regeneration solenoid
GA = Suppressor
IP = Door switch
MR = General terminal block
MV = Fan motor
PL = Washing pump
PS = Drain pump
PU = Pushbutton array
PR/RL = Level pressure switch
31/35
PA = Anti-overflow pressure
switch
RR = Heating element
SB = Rinse-aid sensor
SS = Salt sensor
Turbidity = Turbidity sensor
ST = Temperature sensor
TAC/T = Tachymetric generator
TS = Safety thermostat
Main Board = Main board
User Interface = Display board
599 35 90-23
12 Table of programmes
12.1 60cm Dishwashers
The table below lists the phases of the programmes for this type of appliance: 60cm dishwashers. As these can be configured differently, refer to the relative
documentation for the specific cycles available for each model.
Type of wash
Drying (min.)
Cycle time (min.)
14'
ctrl
2x3’ (<65°C)
---
ctrl
5’
PW1
69°C
---
ctrl
24’
120’
68°C
---
ctrl
2x5’ (<65°C)
---
ctrl
5’
PW1
69°C
---
ctrl
6’
88’
55°C
10'
ctrl
55°C
5'
68°C
14'
ctrl
2x3’ (<68°C)
---
ctrl
5’
PW1
69°C
11’
ctrl
24’
131’
---
6'
ctrl
50°C
4'
68°C
8'
ctrl
---
4’
ctrl
5’
PW1
69°C
---
ctrl
24’
100’
---
6'
PW1
50°C
2'
55°C
12'
PW1
---
4’
PW1
5’
PW1
69°C
1'
PW1
24’
98’
---
---
---
50°C
2'
55°C
12'
PW1
---
4’
PW1
5’
PW1
69°C
1'
PW1
24’
89’
---
6'
ctrl
50°C
4'
68°C
8'
ctrl
2x3’ (<65°C)
---
ctrl
5’
PW1
69°C
---
ctrl
24’
102’
---
---
---
4'
68°C
8'
ctrl
2x3’ (<65°C)
---
ctrl
5’
PW1
93’
10'
PW5
42'
---
---
PW5
5’
---
PW1
4’
PW5
ctrl
PW2/
PW5
24’
---
54’
162’
Energy label (Short)
---
6'
PW1
2'
55°C
12'
PW1
---
4’
PW1
5’
PW1
69°C
16’
<69°C
16’
<69°C
15-17’
<69°C
---
Energy label Axx
50°C
15,5’
<62°C
E4
E5
Energy label (Auto)
---
8'
E6
Energy label
---
7'
E7
Energy label
---
34'
---
8'
50°C
14-16.5’
PW1
<65°C
15.5’
ctrl
<69°C
525’’
ctrl
<37°C
37'
---
---
PW1
5’ (<60°C)
---
PW1
2’
26'
---
---
ctrl
5’ (<60°C)
---
PW1
2’
10'
---
---
ctrl
---
---
---
---
4'
68°C
8'
ctrl
---
4’
3x5”
(2800)
3x3”
16’ <69°C
(2800)
615’’
--<43°C
Wash time after
heating (min.)
Type of wash
68°C
10'
E1
Heating
(Temperature ºC)
Wash time (min.)
5'
50°C
Type of wash
55°C
ctrl
Intensive
Intensive short
Intensive delicate
Normal
Delicate
Delicate (no prewash)
Normal (3 rinses)
Normal (3 rinses)
Wash time (min.)
Wash time (min.)
ctrl
2.5'
I2
I3
I4
N2
N3
N4
N5
N6
Wash time after
heating (min.)
10'
50°C
Programme
Wash time after
heating (min.)
Type of wash
Dry.
Wash time after
heating (min.)
Hot rinse
2nd Heating
(Temperature ºC)
Extra rinse
1st Heating
(Temperature ºC)
Cold rinse
Type of wash
Wash
55°C
Type
2'
2'
PW1
54’
134’
2'
PW1
44’
141’
---
PW1
45’
120’
4’
ctrl
24’
101’
24’
92-115’
Q1
Q4
Short
Soak
---
---
---
50°C
---
---
---
PW1
---
4’
ctrl/
PW1
PW1
5’
PW1
69°C
2'
ctrl/
PW1
PW1
---
52’
---
8'
PW1
---
---
---
---
---
---
---
---
---
---
---
12’
Short 30 min.
---
---
---
---
---
---
ctrl
---
---
---
5’
PW1
---
ctrl
---
31’
Q6
Q7
Heat plates
Glassware
---
---
---
---
---
---
---
---
---
---
---
---
--9’
<69°C
69°C
---
Q5
--14,5’
<65°C
---
2'
PW1
---
30’
---
---
---
45°C
9'
---
---
PW1
5’ (<60°C)
---
PW1
3’
PW1
55°C
PW1
24’
71’
Auto2 Auto 50-65°C S2
SOI/TD PR
Prewash
Heating
(Temperature ºC)
Programmes
ctrl
50°C
32/35
5’
PW1
69°C
1'
599 35 90-23
12.2 45cm Dishwashers
The table below lists the phases of the programmes for this type of appliance: 45cm dishwashers. As these can be configured differently, refer to the relative
documentation for the specific cycles available for each model.
Type of wash
Drying (min.)
Cycle time (min.)
55°C
5'
68°C
14'
ctrl
2x3’ (<65°C)
---
ctrl
5’
PW1
69°C
---
ctrl
24’
116’
ctrl
50°C
10'
68°C
---
ctrl
2x5’ (<68°C)
---
ctrl
5’
PW1
69°C
---
ctrl
6’
85’
-----
6'
6'
ctrl
PW1
50°C
50°C
4'
2'
68°C
55°C
8'
12'
ctrl
PW1
-----
4’
4’
ctrl
PW1
5’
5’
PW1
PW1
69°C
69°C
--1'
ctrl
PW1
24’
24’
100’
96’
Wash time after
heating (min.)
Type of wash
Heating
(Temperature ºC)
Wash time (min.)
ctrl
2.5'
Type of wash
10'
50°C
Wash time (min.)
55°C
Wash time after
heating (min.)
Wash time (min.)
Dry.
Type of wash
E5
Hot rinse
Wash time after
heating (min.)
E1
Extra rinse
2nd Heating
(Temperature ºC)
Intensive
Intensive short
Normal
Delicate
Delicate (no prewash)
Normal (3 rinses)
Normal (3 rinses)
Cold rinse
1st Heating
(Temperature ºC)
I2
I3
N2
N3
N4
N5
N6
Wash
Type of wash
Programme
Wash time after
heating (min.)
Type
Prewash
Heating
(Temperature ºC)
Programmes
---
---
---
50°C
2'
55°C
12'
PW1
---
4’
PW1
5’
PW1
69°C
1'
PW1
24’
86’
---
6'
ctrl
50°C
4'
68°C
8'
ctrl
2x3’ (<65°C)
---
ctrl
5’
PW1
69°C
---
ctrl
24’
99’
---
---
---
4'
68°C
8'
ctrl
2x3’ (<65°C)
---
ctrl
5’
PW1
---
ctrl
24’
90’
Energy label Axx
---
10'
47'
---
---
PW1
5’ (<60°C)
---
PW1
4’
PW1
---
PW1
76’
171’
Energy label (Auto)
---
8'
41'
---
---
PW1
5’ (<60°C)
---
PW1
2’
3x5”
(2800)
69°C
10’
<69°C
10-11.5’
<69°C
2'
PW1
64’
150’
---
8'
4'
68°C
8'
ctrl
---
4’
5’
PW1
69°C
1'
24’
85-110’
50°C
11’
PW1
<62°C
11-12.5’
PW1
<65°C
Q1
Q4
Short
Soak
---
---
---
50°C
---
---
---
PW1
---
4’
ctrl/
PW1
PW1
5’
PW1
69°C
2'
ctrl/
PW1
PW1
---
48’
---
8'
PW1
---
---
---
---
---
---
---
---
---
---
---
12’
Short 30 min.
---
---
---
---
---
---
ctrl
---
---
---
5’
PW1
---
ctrl
---
31’
Q6
Q7
Heat plates
Glassware
-----
-----
-----
--9'
-----
-----
--PW1
--5’ (<60°C)
-----
--PW1
--3’
--PW1
--9’
<69°C
69°C
55°C
---
Q5
--14,5’
<65°C
--45°C
2'
PW1
PW1
--24’
29’
69’
Auto2 Auto 50-65°C S2
ctrl
50°C
N.B.: The overall times for the programmes (duration) are approximate, and do not take into consideration the extra rinse, which may be selected as an option. The
various phases do not include the times for regeneration/washing of the resins which, being performed “Ad Hoc”, are not carried out at every cycle (see sections
6.12 and 6.13)
ctrl
Continuous washing at 2800 rpm. PW Pulse washing at 1600 > 2800 rpm.
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599 35 90-23
14 Checking the efficiency of the components
In order to facilitate the control procedure for the components to be tested, a TEST PROCEDURE has been
created which indicates the point to which the probes of the tester should be applied and the correct
theoretical value for each component tested.
Remove the door and detach all the connectors from the main board.
Connect the probes of the tester to the appropriate points on the connector. Compare the ohmic reading
with the theoretical value.
Care should be taken relative to the position of connector "A1" - "A2": if this connector is
replaced in the incorrect position (back-to-front), the appliance will not function. The board will
not accept any commands since the power supply will be disconnected.
14.1 Measurement points on the board wiring connector
LIST OF COMPONENTS
PROBE CONTACTS
B1
A2
(RR) - HEATING ELEMENT +
(TS) - SAFETY THERMOSTAT
A1
C5
(PR) - LEVEL PRESSURE SWITCH
B1
C5
(PA) - ANTI-FLOODING PRESSURE SWITCH
C1
A2
(IP) - DOOR MICROSWITCH
B2
D5
D1
D7
(DD/DB) - INTEGRATED DISPENSER
0Ω
(SB) - RINSE-AID SENSOR
F3
F4
(SS) - SALT SENSOR
F1
F2
(ST) - TEMPERATURE SENSOR
G5
G6
(GT) - TACHYMETRIC SENSOR
E1
D1
D1
E2
D3
C9
D1
C7
C11
C3
(MV) - FAN MOTOR
(ER) - REGENERATION SOLENOID
(EC) - FILL SOLENOID +
(AA) - ANTI-FLOODING DEVICE
(PL) - WASH MOTOR
(PS) - DRAIN MOTOR
To the two motor
wires (blue) / (red)
C11
CORRECT VALUES
0Ω
L
N
* POWER CABLE &
(PU) - ON/OFF SWITCH
C1
25 Ω ± 8%
INFINITE
0Ω
INFINITE
0Ω
0Ω
1.500 Ω ± 8%
INFINITE
0Ω
INFINITE
0Ω
4850 Ω ± 5%
1205 Ω ± 5%
210 Ω ± 8%
NOTES
with ON/OFF key pressed
connected in series
(2100W)
on "EMPTY" (1-2)
on "FULL" (1-3)
on "EMPTY" (1-2)
on "FULL" (1-3)
Door closed
OK
with Rinse-aid
without Rinse-aid
with salt
without salt
(at 25ºC)
(at 60ºC)
OK
7750 Ω ± 8%
OK
6 KΩ ± 8%
OK
3.800 Ω ± 8%
connected in series
50 Ω ± 8%
start-up winding
180 Ω ± 8%
auxiliary winding
180 Ω ± 8%
OK
N.B.: - *) = Measurement points L and N refer to the pins of the plug fitted to the power cable.
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599 35 90-23
15 QUICK GUIDE TO THE SPECIAL FUNCTIONS
The table below briefly describes how each of the special functions available to the user and to the Service Engineer can be used. The display does not indicate any
function neither of Service nor User.
USER (*)
Function
Select
regeneration
Deactivate
rinse-aid
SERVICE
Accessing
diagnostics
mode, alarm
display and
activation of
actuators
Cancel alarms
stored in
memory
Activation of the function
Buttons
Led(s)
S0 (On/Off)
LD1 + LD2+ LD3
[S2 + S3]
flash
S0 (On/Off)
LD1 + LD2+ LD3
[S2 + S3]
[S1 + S3]
S1
S0 (On/Off)
LD1
flashes
LD2
S2
flash
flashes
LD1
LD1 + LD2 + LD3
S1
flash
flashes
LD2
flashes
[S1 + S3]
S0 (On/Off)
[S1 + S3]
Test cycle
S0 (On/Off)
[S1 + S3]
Extra rinse
S0 (On/Off)
[S1 + S3]
Disable buttons
S0 (On/Off)
Exit / Memorize
Starting the function
Buttons
Led(s)
LD1 + LD2 + LD3
flash
LD1 + LD2 + LD3
flash
LD1 + LD2 + LD3
flash
LD1 + LD2 + LD3
flash
S2
All LEDs
S3
LD3
[S1 + S2]
S1
[S2 + S3]
S2
flash
flashes
LD1
flashes
LD11
Brief description / Comments
(description on page 22 / chapter 6.15)
Level …... .. ..... ..... ..… ... L1 … … … ... L2 … … … … … ... L10
N° of flashes of LED End of cycle … 1 … … … … 2 … … … … … …
10
ex. level 3: 3 flashes, pause .… repeated for 1 minute
(description on page 20 / chapter 6.11)
Press key S2 and press again: the end of cycle LED lights then switches off.
(LED lit = function activated)
(description on page 27 / chapter 10)
The end of cycle LED emits a series of flashes which correspond to the type
of alarm
The last 3 alarms can be displayed by pressing
S1
th
th
When pressed from the 4 to the 10 time, the individual components are
actioned (description on page 27 / chapter 10)
(description on page 28 / chapter 10.3)
All the LEDs flash for 30 seconds.
(description on page 28 / chapter 10.4)
The cycle starts automatically signalling the various current phases with the
lightning of the corresponding LEDs.
(description on page 29 / chapter 10.5.1)
Press key S1 and press again: the end of cycle LED lights then switches off
(Led on = active function)
On/Off
LD2
flashes
LD11
On/Off
description on page 29 / chapter 10.5.2)
Press key S2 and press again: the end of cycle LED lights then switches off
(Led on = pulse; Led off = continuous)
In order to memorize the functions or exit diagnostics mode, press key S0 to switch the appliance off. In most cases, memorization / exit take place automatically
after 60 seconds (in which case the appliance returns to pre-selection mode).
(*) To activate the functions available to the user, no cycles must be selected: to cancel them see 4.3.1 (i.e. the appliance must be in pre-selection mode).
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599 35 90-23