Electrolux EDW 1003 User manual

© Electrolux
Muggenhofer Straße 135
D-90429 Nürnberg
ermany
Fax [phone]
Spares Operation
Publ.-Nr.:
599 515 183
09.02
R.Kurzke
Ausgabe:
EN
SERVICE MANUAL
DISHWASHER
EDW 1003
Dishwasher
+
EDW 1003
+

- 2 -
09.2002 R.K. 599 515 183 EN
Index
1. Control panel ................................................................................... 3
2. Dimensions ...................................................................................... 3
3. Components .................................................................................... 4
3.1 Electronic......................................................................................... 4
3.2. Circulation pump ............................................................................. 4
3.3 Drain pump ...................................................................................... 4
3.4 Flow heater...................................................................................... 4
3.5 Detergent dispenser ........................................................................ 5
3.6 NTC thermal sensor ........................................................................ 6
3.7 Pressure switch ............................................................................... 6
3.8 Interference filter ............................................................................. 6
3.9 Spray arms ...................................................................................... 7
3.10 Drying fan ........................................................................................ 7
3.11 Regeneration dosing with condensor ............................................. 8
3.11.1 Water softening/regeneration ......................................................... 8
4. Repair informations ......................................................................... 9
4.1 Open the housing............................................................................ 9
4.2 Position of the components ............................................................ 10 12
5. Water course Scheme .................................................................... 13
5.1 All Around Water Protection ........................................................... 14
5.2 Water intake .................................................................................... 15
5.2.1 Water load steps ............................................................................. 16 17
5.3 Draining ........................................................................................... 18 19
6. Electronic ......................................................................................... 20
6.1 In and Output Elements ................................................................. 20
6.2 General information ........................................................................ 21
6.3 Input philosophy: Program selection .............................................. 22
6.4 Input philosophy: Select start time .................................................. 23
6.5 Input philosophy: Program sequence ............................................. 24
6.6 Input philosophy: delete program ................................................... 25
6.7.1 Input philosophy: alter program ...................................................... 26
6.7.2 Input philosophy: alter program ...................................................... 27
6.8 Input philosophy: interrupt program ................................................ 28
6.9 Input philosophy: Displays .............................................................. 29
6.10 Overview of customer and aftersales service functions ................. 30
6.11 Servicefunction / Adjust water hardness ........................................ 31
6.12 Deactivation of rinse aid addition .................................................... 32
6.13 Deactivation of signal sound ........................................................... 33
6.14 fault memory and single actuator selection .................................... 34
6.15 LED test with integrated deletion of the fault memory .................... 35
6.16 manufacturing test routine: ............................................................. 36
6.17 Overview of error displays............................................................... 37
8. Wirings ............................................................................................ 39
8.1 electric circuit diagram .................................................................... 39
8.2 Wiring diagramn .............................................................................. 40

- 3 -
09.2002 R.K. 599 515 183 EN
1. Control panel
2. Dimensions
Build-in dimensions for Integrated
Dishwashers
ÖKO-FAVORIT
* Appliances with height-adjustable feet
Plinth height for appliances 820 mm high
100 - 175 mm
Plinth height for appliances 870 mm high
150 - 2 0 mm

- 4 -
05.2002 R.K. 599 514 DE
3.2 Circulation Pump
The circulation pump is driven by an asynchronous motor with
an auxiliary winding. The auxiliary winding ist in circuit with a 3
mF capacitor. A tacho generator is used for speed control.
There are three speeds for rinsing.
2800 1/min, 2200 1/min, 1900 1/min, 1700 1/min, 1600 1/min,
Power output50 W.
3.3 Drain Pump
The drain pump is driven by a synchronous motor.
Power output 26 W.
Pump rate 15 l/min.
3.4 Flow Heater
The flow heater heats the water to the required temperature.
During the wash cycle, water is contantly passing through the
flow heater.
Power output 2000 W
Resistor 25 W
Protector 98 °C ± 5 K
Thermal fuse 260 °C
3. Components
3.1 Electronic
On electronic models, a micro processor controls all
components, this is done using triacs. The electronic also
memorizes all programme data.
The heating is switched by a relay on the electronic board.
Only for models with ceiling spray arm

- 5 -
05.2002 R.K. 599 514 DE
3.5 Detergent dispenser
Dosing of detergent
prewash 10 ml
wash 20 30 ml
Dosing of rinse aid
position 1 6 2 ml 7 ml
Capa ity
140 ml
display lack of rinse aid
dosing of rinse-aid
maximum filling level
outlet of rinse-aid
detergent tray
detergent tray for pre wash
Spule
EIN
AUS
Zeit
The detergent compartment 1 is filling corresponding to the set dosing
quantity when the door is open. Possibly existing rinse aid in compartments
2 and 3 flows back into the storage tank of the rinse aid. The detergent
trays are filled up. The door will be closed and the detergent for prewash
will be rinsed out through the slots in the detergent dispenser cover.
During the washing cycle the coil is switched on and the detergent
compartment cover releases the detergent. The rinse aid flows from
compartment 1 into compartment 2.
After switching off the coil, the rinse aid flows from compartment 2 into
compartment 3.
During the rinse cycle, the coil will be switched on when the rinse is warmed
and the rinse aid runs from compartment 3 into the rinse tank. At the same
time, the remaining rinse aid (15 %) runs from compartment 1 into
compartment 2.
With the coil switched off, the rinse aid flows from compartment 2 into
compartment 3.
During the rinse cycle, the coil is always switched on twice. When it is
switched on the second time, the remaining rinse aid flows into the rinse
tank.
EIN
AUS
Zeit
EIN
AUS
Zeit
EIN
AUS
Zeit
EIN
AUS
Zeit
EIN
AUS
Zeit
coil

- 6 -
05.2002 R.K. 599 514 DE
3.6 N C- emperature Sensor
3.7 Pressure Switch
The pressure switch controls the water level.
Without water, contact 11 12 is closed.
fN Switch point with level 65 mm Ws
Reset point with level 45 mm Ws
The pressure switch is not adjustable.
3.8 Interference Filter
The interference filter is connected in the terminal board paral
lel to the mains feed.
Temp. Resistor
10°C 9653 Ohm
25°C 4843 Ohm
60°C 1204 Ohm
90°C 445 Ohm

- 7 -
05.2002 R.K. 599 514 DE
3.9 Spray arms
The new cutlery basket is placed at the upper diswasher basket. The celling sprayarm sprays the water
directly onto the cutlery basket and tguarantees an excellent washing result with the cutlery placed in
that basket.
Fun tion mode of the ondensing drying
Rinse tank, fan and regenerating dosing with
condenser form a closed circuit. The humid air is
sucked from the top of the rinse tank and blown
through an air guide between rinse tank and
regenerating dosing. Thereby the air gets dry and
the condensate is guided to the drain tub.
The dry air gets through the rinse tank ventilation
into the rinse tank. During the drying phase, the
condenser is additionally cooled with 1 liter of
water.
fan
air guide for
condenser
rinse tank
ventilation
drain tub
3.10 Drying fan
The new drying fan is located at the top on the rinse tank.
Celling spray arm upper spray arm lower spray arm

- 8 -
05.2002 R.K. 599 514 DE
3.11.1 Water softening/regeneration
2
1
2
1
1. softener unit
2. regeneration dosage
chamber
3.11 Regenerating dosing
with condenser
The water softening can be adjusted in 10 levels. The incoming
water flows until positon 5 to 85 % through the softener which
works according to the ion exchange principle. The ion exchanger
is filled with small epoxy resin balls. The resins exchange the
hardness constituents (calcium and magnesium), for sodium
ions.
When all the sodium ions are used up, it is necessary to
regenerate the softener. This is done by flushing a brine solution
through the softener.
Afterwards the softener is washed out with fresh water and is now
fully effective.
Depending on the water hardness, regeneration is only necessary
after several wash cycles.
The remaining 15 % of water flow through the rinse tank ventilation
directly into the appliance.
From setting of level 6, the whole water flows through the
softener. For this purpose you also have to set mechanically from
0 to 1 with the regenerating dosing.
With the setting of level 9, it is additionally regenerated after the
washing in a rinse cycle. With the settings 1 to 8, it is regenerated
after the final rinse depending on need. The softening system is
designed for a water hardness of up to 70 °dH.
With every filling step, the condenser
cools down due to the cold incoming
water. Therefore another 1 liter of water
is required during the drying cycle.

- 9 -
05.2002 R.K. 599 514 DE
4. Service tips
4.1 Open the housing
1
23
1
2
To remove side panel remove fixing screws, pull
the panel away from the rear, and gently out of
the front trim. (pic.1).
Removing the
cover plates of the
base area, remove
these screwst
(Abb1+2).
Remove the screws (1) to pull the
outer door away.
To remove the panel, remove the
fixing screws (2) .
You need
Torx epuipment

- 10 -
05.2002 R.K. 599 514 DE
4.2 Position of Components
Detergent dispenser (1)
Spray arms (2)
Roof mounted shower (3)
Salt container (4)
Filter (5)
Type plate (6)1
2
3
45
6
Detergent dispenser (3)
Thermal sensor (4)
Drain pump (5)
Pressure switch (6)
3
456
Electronic EDW 1003 (1)
and ON/OFF switch (2)
are clipsed
1

- 11 -
05.2002 R.K. 599 514 DE
Back side view
Flow heater (1)
Terminal box (2)
Inlet hose (3)
Drain hose (4)
Water inlet for above spray arm (5)
Removing the detergent dosage chamber:
disengage locking tabs (1), disconnect hoses (2)
holding the top of the chamber, pull upwards
disengaging it from the softener.
Removing the softener unit :
remove the securing nut located under the salt cap.
press softener (1) down and remove it through the front
from the base area
CAUTION if accessible release reed switch.
1
23
4
5
1
2
1

- 12 -
05.2002 R.K. 599 514 DE
Removing the base :
remove side panels, rear panel and plinth panel
gently release base fixing clips with a screwdriver (figure)
take off base carefully and release circulation pump,
electronic and heater relay
disconnect the float switch
1
2
3
45
With base removed, following components are accessible:
Drain pump (1)
Circulation pump (2)
Flow heater (3)
Temperature sensor / Turbidity sensor (4)
Pressure switch (5)

- 13 -
09.2002 R.K. 599 515 183 EN
1 Inlet valve
2 Air break
3 Regeneration water dosage
4 Overflow safety level
5 Safety overflow
6 Inlet to sum from regeneration dosage chamber
7 Regeneration dosage chamber
8 Softener
9 Salt container
10 Non-return valve salt container
11 Regeneration valve
12 Safety inlet hose
13 Base tray
14 Float switch
15 Pressure switch
16 Filter
17 Circulation um
18 Flow heater
19 Drain um
20 Non-return valve
21 S ray arms
22 Roof-mounted shower
23 Tub vent
24 Sum assembly
5. Water Course Scheme
2322
21
21
24
23
7
1
12
658
10
11 9
15
16 17
14
18
13
19
4
20
ohne
Sicherheitszulaufschlauch
Ausführung
Kurze Regenerierdosierung

- 14 -
09.2002 R.K. 599 515 183 EN
5.1 All-Around Water Protection
Aqua-Control Inlet Hose
The inlet hose has a double-wall construction. The inner hose is equipped with a flow restrictor built
into the tap connection, and has a flow rate of 4 litres per minute. The inlet valve (1) is located in the
base of the dishwasher. The safety outer hose (12) is connected to the re eneration chamber. If the
inner hose should burst, the water passes into the tub. The safety pressure switch activates the drain
pump and decreases the waterlevel down to normal level. An additional overflow protection is a
defined overflow throu h the re eneration chamber. The water flows into the bottom tray and
activates the float switch, which ener ises the drain pump. This drains the dishwasher preventin
water dama e.
Safety level
If the safety level is reached by over-filllin , the safety pressure switch starts the drain pump. The water
is only drained until it has reached the normal level because the reset point of the safety pressure
switch is above the switchpoint of the normal pressure switch.
Leakage Protection
The anti-flood switch in the base tray will activate the drain pump and drain the water from the tub in
the event of an internal leaka e. If the float switch is activated, all electric components are switched
off except the electronic and the drain pump.
1 Inlet valve
2 Air break
3 Regeneration water dosage
4 Overflow safety level
5 Safety overflow
6 Inlet to sum from regeneration dosage chamber
7 Regeneration dosage chamber
8 Softener
9 Salt container
10 Non-return valve salt container
11 Regeneration valve
12 Safety inlet hose
13 Base tray
14 Float switch
15 Pressure switch
16 Filter
17 Circulation um
18 Flow heater
19 Drain um
20 Non-return valve
21 S ray arms
22 Roof-mounted shower
23 Tub vent
24 Sum assembly
18
1
2
3
4
5
6
7
89
10
11
12
13 14
15
16 17
19
20
21
22
23 24

- 15 -
09.2002 R.K. 599 515 183 EN
5.2 Water Inlet
The water flows into the regeneration dosage chamber (7) via inlet valve (1), over air break (2), into
regeneration dosage chambers (3) into softener (8). At this oint the water divides. 1/4 of the water
enters the tub through the vent (23). 3/4 of the water enters the sum (24) through hose (6).
The level control chamber built into the sum o erates the ressure switch (15).
1 Inlet valve
2 Air break
3 Regeneration water dosage
4 Overflow safety level
5 Safety overflow
6 Inlet to sum from regeneration dosage chamber
7 Regeneration dosage chamber
8 Softener
9 Salt container
10 Non-return valve salt container
11 Regeneration valve
12 Safety inlet hose
13 Base tray
14 Float switch
15 Pressure switch
16 Filter
17 Circulation um
18 Flow heater
19 Drain um
20 Non-return valve
21 S ray arms
22 Roof-mounted shower
23 Tub vent
24 Sum assembly
18
1
2
3
4
5
6
7
89
10
11
12
13 14
15
16 17
19
20
21
22
23 24

- 16 -
09.2002 R.K. 599 515 183 EN
5.2.1 Water load steps (Example)
Static filling
- Static filling until pressure switch point.
failure code:
If this point isnt reached after max. 2 minutes (Timeout 1), a
failure code is displayed and the program is stopped.
Dynamicfilling
- 10 seconds filling at reduced circulation pump speed
- 5 seconds pause
- 10 seconds filling at reduced circulation pump speed
- filling with increasing circulation pump speed. As soon as the
target speed has been reached, it is filled up to the pressure
switchpoint.
Failure code:
If this dynamic switchpoint isn’t reached within total 4 minutes
(Timeout 2), the dynamic filling can be repeated 3 times. Only
after non-successful repeating 3 times, a failure code is displayed
and the program is stopped.
Timeout 1
Timeout 2
static water
load
tolevel
dynamic water
load
withlevel control
max. 4
repetitions
valve
off
on
w
ater
in L
0
dynamic
water load
s
peed
in U/min
0
10 Sek.
time
in Sek.
target-
speed
≥20 Sek.
time
inSek.
tim
e
in Sek.
filing filling is possible
level check:
water failure displayed
if level not reached!
ca. 1,6
3,6 - 4
static
water load
level check:
water failure displayed
if level not reached!
5 Sek.
1600
5 Sek.
pulse wash pulse 2800 1/min Pause 1600 1/min target speed in dynamic filling
1 0,9 sec 4,5 sec 2200 1/min
2 0,6 sec 3 sec 1900 1/min
3 0,3 sec 1,5 sec 1700 1/min
*) The target speed
is dependent on
the subsequent
pulse wash.

- 17 -
09.2002 R.K. 599 515 183 EN
New pulse wash with random functionality
*) The variable speed is
1600 1/min at the
moment and equal to all
appliances.
Random-fun tion
Thigh,r = time for high speed (calculated with random funktion)
Thigh = time for high speed (cycle definition)
Tr= random time
Tlow = time for low speed
Ratio = factor for low speed (eeprom definition)
Cir ulation
The circulation pump (17) pumps the water simultaneously into the ceiling shower (22) and into both
spray arms (21). The water is filtered in the sieves (16) and led to the circulation pump.
Fun tion of the new pulse wash with random fun tionality
After the filling steps, the circulation pump is running at two rotational speeds.
The ratio of pulse
time and pause is
always 1 : 5.
T high, r =T
high + T r
T low =T
high, r + Ratio
water
inL
0
20 Sec.
start-routine
time
insec.
pressureswitch
point
water level
dynamic
pulse wash
level
speed
inU/min
0time
insec.
2800
variable
speed
1600
Thigh,r Thigh,r Tlow Tlow Thigh,r
-function
Thigh,r = time (high speed) + r andom time
3XOVH:DVK 8VHZLWK:DVK&\FOHV
'HILQLWLYH7LPH 5DQGRP7LPH 'HILQLWLYH7LPH 5DQGRP7LPH
 VHF VHF  VHF SUHZDVKLQWHQVLYH
ZDVKLQWHQVLYH
 VHF VHF  VHF ZDVKDQGLQWHUPHGLDWHZDVK
SUHZDVKQRUPDO
 VHF VHF  VHF ULQVH
3XOVHWLPHPLQ 3DXVHPLQ

- 18 -
09.2002 R.K. 599 515 183 EN
5.3 Draining
During the wash cycle the water is pumped out at various stages. First the draining water cleans the
filters (16). The filters are open at the bottom which allows any soilage to be rinsed off sufficiently.
There is a non-return valve ( 0) at the inlet connection to the drain pump (19). This valve prevents the
water
1 Inlet valve
2 Air break
3 Regeneration water dosage
4 Overflow safety level
5 Safety overflow
6 Inlet to sum from regeneration dosage chamber
7 Regeneration dosage chamber
8 Softener
9 Salt container
10 Non-return valve salt container
11 Regeneration valve
12 Safety inlet hose
13 Base tray
14 Float switch
15 Pressure switch
16 Filter
17 Circulation um
18 Flow heater
19 Drain um
20 Non-return valve
21 S ray arms
22 Roof-mounted shower
23 Tub vent
24 Sum assembly
18
1
2
3
4
5
6
7
89
10
11
12
13 14
15
16 17
19
20
21
22
23 24

Sequence draining with pressure switch level check
T2(variable) T3(variable) T1(variable)
1 draining sequence
withvariable timing
level check!
.
New draining with sequence draining
- The draining step contains of 3 time sequences.
In the middle sequence, during time T2 the drain pump is stopped.
- At the end of the drain step, the water level is checked.
- If the switch back is reached, the drain step is terminated.
If the switch back isn’t reached, the drain step is repeated.
- A failure code is displayed, if after 2 drain steps, the switch
back couldn’t be reached.
In this case, the program is stopped.
19
drain pump
on
off
Drain Cycle T1 T2 T3
First draining before every wash cycle 45 sec 15 sec 20 sec
Draining after the wash cycles 30 sec 20 sec 10 sec

- 20 -
09.2002 R.K. 599 515 183 EN
6. Electronic EDW 1003
6.1 In- and o tp t elements