ESL5205L0

SERVICE MANUAL DISHWASHERS

Edition: 2005-02

CONTENTS

Table Caption: This table is a table of contents for a manual, listing the sections and their corresponding page numbers. It appears to cover operational, hydraulic, electrical, alarm, user, service, and electrical diagram information for a device.

14 CHECKING THE EFFICIENCY OF THE COMPONENTS........................................................................ 25 14.1 Measurement points on the board wiring connectors...................................................................... 25 15 QUICK GUIDE TO THE SPECIAL FUNCTIONS....................................................................................... 26

1 Purpose of this manual

The purpose of this manual is to provide service personnel (who already have the basic knowledge necessary for repairing dishwashers) with information on dishwashers equipped with the EDW503 electronic control system, which are produced in the Solaro (MI - Italy) factory.

The EDW503 control system consists of a main circuit board and a control/display board. Both boards are housed in a single plastic container. It is used in some 'DIVA' models.

This Manual describes:

• General characteristics
• Technical characteristics
• Control panel and programmes
• 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 (publication number 599 35 55-25, 599 36 09-90 ).

2 PRECAUTIONS

• ƒ Electrical appliances must be serviced only by qualified Service Engineers.
• ƒ 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)

• ⇒ 2200 W (Resistance 2000W)

• ⇒ Pressure Min. / Max. 5 ÷ 80 N/cm²

• ⇒ 9/12 place settings (45/60 cm)

Consumption (prog. BIO):

• ª Water

• ⇒ Lt. 14

ª Energy

• ⇒ KWh 0,8

• ª Duration of cycle

• ⇒

136'-143' (45/60 cm)

Controls

• ON/OFF

• ⇒ On/Off function button

• Programme start

• ⇒ By button Start/Reset

• Programme selection

• ⇒ By knob (n°3÷5 programmes)

• Option selection

• ⇒ By 1 button

• Display

• ⇒ Leds

Washing system Water fill level control Water heating Temperature control Drying systems Safety systems / Alarms

• ⇒ Continuous (2600-2800 rpm)

• ⇒ Pressure switch + Software

• ⇒ Heating element enclosed in tube (2000 W)

• ⇒ NTC Temperature sensor

• ⇒ Active

• ⇒ Total protection (hydraulic + Software)

4 CONTROL PANEL

• [ S0 ] - On/Off button (always featured)
• [ S1 ] - Option selection button (only on some models)
• [ S2 ] - Programme selection button (sequence)
• [ LD1 ] - Option Led activated (only on some models)
• [ LD2 ]- … - [ LD6 ] - Washing programme LEDs
• [ LD7 ] … Ö [ LD9 ] - Indicator LEDs: 'End of cycle' (always present), 'SALT' and 'RINSE AID'

4.1 On/Off button (S0)

All models feature this button and it is used to switch on and off the appliance: the switching off does not cause the cancellation of the current programme. When the appliance is switched on, only the End of cycle LED is on and in case, if featured, the Salt and Rinse aid LEDs.

4.2 Option selection button (S1)

The system used for selecting the wash programmes depends on the configuration of the model. They can be the 'delayed start' or the 'half load' : Switching off and on the dishwasher, the chosen settings are cancelled.

4.3 Programme selection button (S2)

The functions of the various buttons and LEDs depend exclusively on the software configuration of each appliance. With button S2 it is possible to scroll down sequentially all the available programmes: when the button is pressed, the LED relative to the chosen programme lights.

When the button S2 is activated for the first time, the last programme performed is shown. This button has also a Reset function.

4.4 Options

4.4.1 '1/2 load'

The 1/2 load option optimizes the washing cycle when only a small load is placed in the appliance. When this button is pressed, certain parameters of the selected washing cycle are modified:

• ª Exclusion of Pre-wash (if featured)
• ª Reduction of the washing temperature
• ª Reduction of the duration of the programme

OR

4.4.2 Delayed start

This option enables the user to set a fixed start delay of the washing cycle.

to select the delayed-start time, with door open:

1. Switch the appliance on with S0 button.
2. Press the S1 button to select the delayed-start time: LED LD1 lights up to show that the selection has been made.
3. ª The time reset when the relative button is pressed again: the LED LD1 switches off.
4. Select the programme pushing S2 button in sequence.
5. Close the door: the countdown starts.
6. When the countdown terminates, the selected cycle starts.

4.5 Cancelling a programme

To cancel a programme that has already started:

1. Press button S2 for at least 3 seconds.
2. The LED of the current programme flashes.
3. Salt/Rinse-aid LEDs light up (if featured): the programme is cancelled and the appliance returns to preselection mode.
4. The End of cycle LED flashes.
5. Select the new programme.

4.6 Interruption of a programme (pause)

If the door is opened, the appliance remains on (the power loads are deactivated).

ª The Option LED remains on.

• ª Closing the door the programme starts, after a brief 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.

4.7 Power failure

The Power Failure function maintains the information relative to the cycle status even in the even of a power outage; when