Electrolux EWM 1000 AEG User manual

SERVICE MANUAL
Publ.-Nr.:
599 51 50 25
685
11.06
© Electrolux Distriparts
Muggenhofer Straße 135
D-90429 Nürnberg
Germany
Fax [phone]
DGS-TDS-N
Edition
WASHING
EN
Washing machines,
Toploader
EWM1000
AEG

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DGS-TDS-N 11.06 R.B. © Electrolux 599 51 50 25 EN
CONTENTS
Control Panel...................................................................................................................3
Button / Program ............................................................................................................. 3 - 5
Functions of the System .................................................................................................6
Electronic Module ............................................................................................................ 7
Door Lock ........................................................................................................................ 8
DSP (Drum-Self-Position) ............................................................................................... 9
Water Inlet Valve for 3- and 4-chamber detergent box .................................................. 10
Water Distributor ........................................................................................................... 11
Pressure switch ............................................................................................................ 12 - 13
Heating element ............................................................................................................ 13
Heating Circuit ............................................................................................................... 14
Drain pump ................................................................................................................... 15
Motor ........................................................................................................................ 15
Drum movements ......................................................................................................... 16
Spinning profiles ............................................................................................................ 17 -18
Function of the FUCS ....................................................................................................19 - 20
Foam Detection ............................................................................................................. 21
Accessibility of Components ......................................................................................... 22
Service Program ........................................................................................................... 23 - 29
Demo-Programm .......................................................................................................... 30
Circuit Diagram ............................................................................................................. 31 - 39
Changes ........................................................................................................................40

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DGS-TDS-N 11.06 R.B. © Electrolux 599 51 50 25 EN
Control Panel
- Rotary programme selector with 16 positions and integral on-off switch
- 5 function keys
- 14 (15) function LEDs
The individual positions of the programme selector can be configured for different wash programmes.
Position 0 (OFF) of the selector is always defined as on-off switch. For each programme, the additional
functions available and other parameters are defined. The appliance configuration also defines the key
functions each available and the LEDs.
Cycles
LED main wash
LED rinse
LED rinse+
LED spin
LED end
LED lid
Start/Pause Button
Function:
- The selected program is activated by pressing the start/pause button.
- If the cycle is to be paused, press the start/pause button. This button is not effective when the suds
temperature is >40° C.
Pre-Wash Button
Function:
- This is available in the programmes cotton/colored, easy-care, delicate fabrics and energy-
programmes.
- Can't be combined with the “stains” button.
- It is heated up to max. 30 ° C.
LED status process
ON cycle is running (lid closed)
start/pause FLASHING cycle in pause position
OFF lid not closed
ON lid can be opened, it is possible to pause the cycle
lid (rot) FLASHING cycle was paused
OFF cycle running, no possibility to pause

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Stains Button
Function:
- This is available in the programmes cotton/colored and easy-care.
The selected temperature however must be >=40°C.
- Separate rinsing in of stain remover through the pre-wash chamber, approx. 1.2 ltrs.
- Can*t be combined with the “pre-wash” button.
- Extends the cycle duration in the main wash by 5 minutes after the first heating to 40°C.
Time-Saving Key
Function:
- This is available in the programmes cotton/colored, easy-care and delicate fabrics.
- Can't be combined with the the ECO cycles.
Delayed start Button
Function:
- This is available in the programmes cotton/colored, easy-care, delicate and wool fabrics.
- By pressing this key, you can reduce the duration to zero step by step.
- For example, if a time preselection of 6h has been selected, the LED lights for 6h. When the
timepreselection reduces to 3h, the LED goes out for 6h and the LED lights for 3h etc.
Spin Deselection Button
Function:
- By pressing this key, you can reduce spin-dry speed step by step down to Zero or to rinse stop.
- Reduces the spinning speed of all spin-dry cycles.
Easy Iron 40°C
Function:
With cotton/colored programmes:
- No intermediate spin-dry cycle.
- 3 additional rinse cycles.
- Pulse spin-dry
- Additional loosening phase after spin-drying
With easy-care programmes:
- Reduced wash temperature
- Prolonged wash time and prolonged cooling phase
- One additional rinse cycle
- Additional loosening phase after spin-drying
Energy-programmes
Function:
- Wash temperature is reduced to 60°C and wash time is prolonged.
- Can be combined with the keys “Prewash” and “Stains”.
1200 900 700 Rince hold
1000 900 700 Rince hold
1000 700 Rince hold
1200 600

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2
1
3
4
5
Rinse +
Function:
- This is available in the programmes cotton/colored, easy-care and delicate fabrics.
- Two additional rinse cycles are added.
- No intermediate rinse, except after the last rinse cycle.
Activation of the extra rinse cycle:
- Press simultaneously key 1 and key 3, turn the programme selector by one position to the right.
Keep the keys pressed until the LED Rinse+ is lit on the programme flow display.
- This programming will be stored until it is deactivated again.
Deactivation of the extra rinse cycle:
- Proceed in the same way as when activating it.
Press simultaneously key 1 and key 3, turn the programme selector one position to the right. Keep
the keys pressed until the LED Rinse+ goes dark on the programme flow display.

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1. Electronic module
2. Door lock
3. pressure switch
4. Drain pump
5. Termistance
6. Inlet valve
7. Motor
8. Heating element
9. DSP (Drum Self Position)
Functions of the System

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Electronic Module
The electronic module, including the μP, controls various functions and is placed in a protective housing.
Functions:
- Taking data of the selected cycle programs through the module.
- Water level control in the washtub; a pressure switch detecting the level.
- Cycle temperature control by a NTC sensor.
- Power supply of the heating element.
- Power supply of the drive motor and control of its speed by the tachymetric generator.
- Control of water inlet valves.
- Drain pump and door lock control.
In case of a power failure the module saves the just paused cycle.
- When the power supply to the appliance is restored again, the cycle starts where the program was
paused.

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5432
5
2
3
4
Door Lock
locking part
make-and-break
contact
PTC bimetal
tooth lock washer
lever
magnetic coil
2 = N
3 = impulse electronic
4 = L
5 = electronic J2-1
When closing the lid the door lock gets an impulse from the electronic by contact 3. The impulse feeds
the magnetic coil over the PTC resistor. This moves the lever down and the tooth lock washer is
forwarded by another tooth. This can be heard by a click. The locking part is unlocked, the lid is closed.
When opening the lid, e.g. with the start/pause button or at the end of the cycle, the door lock gets two
impulses from the electronic. The tooth lock washer is moved twice. Only because of the second impulse
the lid can be opened immediately.
The second impulse unlocks the locking part mechanically through the tooth lock washer.
Why two impulses?
The door lock is controlled by a triac which is on the main circuit board. If there is a triac short circuit, the
electronic sends an impulse to the door lock. The customer could open the appliance, if the second
impulse was not required.
If there is a power failure during a wash cycle, the door lock requires approx. 2 min until the lid can be
opened. During this time the PTC bimetal cools down and the locking part opens.
Circuit Diagram
Security:
(see page Service - Program fault display E40)
PTC resistor

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DSP (Drum-Self-Position)
Control ( check ) the DSP-Function:
1. Remove the side panel, switch on the appliance
- Turn the drum to the right position ---> LED on
- Turn the drum over the right position ---> LED off
2 Remove the two plugs from the DSP and check the
resitance of the reed relay.
- Turn the drum to the right position ---> ∞Ω
- Turn the drum over the right position ---> no Ω
3 The drum is still in the right position.
Now measure the voltage. 5-6V DC
- If there is no voltage ---> Cable,
Electronic board
is defective
4. Check the Electronic in the customers service test pro-
gram.
- LED on ---> Electronic OK.
- LED off ---> Electronic defective.
Function:
The reed relay is closed if the metalic sheet, located on the pully, isn't between the magnet and the reed
relay. If the position of the metalic sheet is between those parts the contact of the reed relay is opened.
To mount the pulley in the correct way, you have to take care about following items:
The metal sheet located on the pulley should be in the drum self positioning device, if the door of the
drum is in the upper postion. The DSP is supplied with 5-6 V DC by the main board.
Condition drum positioned:
Reed contact opened, LED-Drum positioned illuminated, 5-6V DC.
Condition drum out of postion:
Reed contact closed, LED-Drum positioned not illuminated, 0V.
If the washing cycle is interrupted by the start pause button the drum has to be postioned within 10 sec.
During this time 2-3 attempts can be excecuted.If the drum isn't positioned during this time, the lid of the
appliance is released and can be opened. The LED drum positioned is not illuminated.
At the end of the cycle the positioning phase is 2 min until time out is reached.
Magnet
Reed - Switch
Connections

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Water Inlet Valve for 3-chamber detergent box
1 - inlet valve, 2-fold
2 - hose for main wash
3 - 3-chamber detergent box
4 - hose for pre-wash
5 - water distributor
6 - water distributor cover
*) Attention!
The flushing into the prewash chamber goes via hose 4.
The flushing into the main wash chamber goes via hose 2.
The simultaneous filling through hoses 2 and 4 provides the fill-in through the softener chamber.
Water Inlet Valve for 4-chamber detergent box
*) Attention!
The flushing into the prewash resp. bleach chamber goes via hose 4.
This is possible due to a connecting channel in the flush-in chamber.
In doing so, approx. 75% water flows into the prewash chamber and aprox. 25% into the
bleach chamber.
It is not possible to select both options prewash and bleaching at the same time.
The flushing into the main wash chamber goes via hose 2.
The simultaneous filling through hoses 2 and 4 provides the fill-in through the softener chamber.
1 - inlet valve, 2-fold
2 - hose for main wash
3 - 4-chamber detergent box
4 - hose for pre-wash and bleach
5 - water distributor
6 - water distributor cover

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Water Distributor
Softener
Bleach
Pre wash
Main wash
Water inlet valve 2
Water inlet valve 1
Softener
Bleach
Pre wash
Main wash

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Pressure switch
Control of the water level is performed by a three-level pressure switch which functions as follows:
fN fTR fS
Level 1- sensing
AB-sensing
Drum water filling
Water is filled into the drum by the following combination:
1. Filling up to fTR level
2. Filling up to fN level
3. Time-depending filling without control by pressure switch.
Supply valves are selected by 2 triacs, and the pressure switch switching levels are monitored by 2
control lines (sensing-wire).
Filling period is determined by control electronics.
Calculation of filling quantity is by measuring time interval between fTR contact closing and the closing of
pressure switch fN contact.

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Pressure switch
Anti-flooding-device
The third pressure switch level is used as an anti-flooding safety device: if the pressure switch
contact should close in the FULL position, the PCB actions the drain pump until the pressure switch
returns to the EMPTY position.
Connection: 230V; 50Hz;
Power: 1950W
Fuse: 10A
Heating element
The heating element is supplied with power directly from the control
electronics by means of a relay. For security reasons, 2 switching
contacts of the pressure switch are connected in series. The
switching positions are monitored by control electronics via 2 control
lines.

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Heating Circuit
The cycle temperature is fixed by the μP depending on the selected program. The heating element RC is
connected by the “full” contact of the level pressure switch of fN (21/24) and of that of fTR (11/14).
The temperature control is guaranteed by the μP through the NTC temperature sensor. The temperature
sensor reduces its resistance according to the temperature increase.
The reduction in the ohmio value of the temperature sensor is detected by the μP; as soon as the
selected temperature is reached the power supply to the heating element will be paused.
The NTC sensor is integrated in the heating element.
Variations of NTC resistance
Temperature (°C) Resistance (Ohm)
0 13325
15 7855
30 4028
40 2663
50 1801
60 1244
70 876
80 628
90 458
NTC-Sensor
1. NTC resistance
2. Metallic casing
3. Connections
4. Plastic casing
To check the NTC sensor function you can measure the ohmic resistance between the contacts
J5/1 and J5/2.
Security
- The pressure switch fN and fTR insures the power part security of the heater function.
- The μP will be break off if an anomaly on the termistance circuit is detected :
cut or short-circuit. (see Page Service-Program fault display E70)
- The heating phase is not executed.

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Drain pump
The drain pump is directly controlled via triac from the control electronics.
Connection:
Motor
The motor is directly phase-controlled via triac from the control electronics.
Relays K2, K3 are responsible for commuting the sense of rotation.
Field switching (if any) is controlled by relay K4.
Speed is monitored by tachometer generator g1 and controlled by control electronics.
Integral overheat protection disconnects the motor from power supply at 115°C.
Safety
- If the triac for the motor is in short-circuit, or if the tachometer generator is interrupted, 4 trials are
executed in intervals of 1 minute each.
After a break of 20 minutes, the fifth and last trial is started. If the motor does not run this time, the
programme is aborted.
(see Page Service-Program fault display E60)

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D55
Sek. 1/Min.
12 0
4 55
12 0
4 -55
N 55
Sek. 1/Min.
8 0
8 55
8 0
8 -55
E 55
Sek. 1/Min.
3 0
10 55
3 0
10 -55
E 55
Sek. 1/Min.
3 0
10 50
3 0
10 -50
PWL_1
Sek. 1/Min.
40 0
1 35
40 0
1 -35
PWL_4
Sek. 1/Min.
57 0
1 35
57 0
1 -35
Drum movements

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C0
1/Min. Sek. AS
FUCS x n ei n
300 0 nein
FUCS x n ei n
450 0 nein
FUCS x n ei n
450 5 nein
650 0 nein
C1
1/Min. Sek. AS
FUCS x n ei n
FUCSimp x nein
FUCS x n ei n
450 30 AS
650 15 AS
850 10 AS
850 60 nein
C2
1/Min. Sek. AS
FUCS x n ei n
FUCSimp x nein
FUCS x n ei n
450 30 AS
650 20 AS
850 10 AS
1000 60 nein
COT_CF
1/Min. Sek. AS
FUCS x n ei n
FUCSimp x nein
FUCS x n ei n
450 30 AS
650 15 AS
850 5 AS
1000 95 nein
1150 75 nein
1400 110 nein
SYN_CF
1/Min. Sek. AS
FUCS x n ei n
FUCSimp x nein
FUCS x n ei n
450 5 nein
650 10 nein
900 55 nein
Spinning profiles

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CF (Feinwäsche)
1/Min. Sek. AS
FUCS x n ei n
FUCS i mp x n ei n
FUCS x n ei n
450 35 AS
700 5 AS
900 20 AS
CF (Wolle)
1/Min. Sek. AS
FUCS x n ei n
FUCS i m p x n e i n
FUCS x n ei n
450 5 AS
650 1 AS
850 1 AS
1000 20 nein
Separater Schleudergang
1/Min. Sek. AS
FUCS x n ei n
FUCS i mp x n ei n
FUCS x n ei n
450 10 AS
650 10 AS
850 10 AS
1000 10 nein
1150 10 nein
1400 20 nein
EASY_IRON_IM P
1/Min. Sek. AS
FUCS x n ei n
450 0 nein
FUCS x n ei n
650 0 AS
FUCS x n ei n
800 0 AS
FUCS x n ei n
900 0 AS
CSR
1/Min. Sek. AS
FUCS x n ei n
FUCS i mp x n ei n
FUCS x n ei n
450 120 AS
Spinning profiles
AS indicates that the anti-foam function is active.

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Perfect balance
- Reversing
- FUCS phase 0
with spin-dry pulse
- Reversing
- FUCS phase 1
- regular spin-dry
Function of the FUCS
“FUCS” is an English expression and means “Fast Unbalanced Control System”
Function:
The unbalance control includes 4 phases. These phases are of different duration and have different limits
of unbalance. The magnitude of the unbalance is calculated every 300 ms, hereby the magnitude is
compared to the fixed unbalance limits, and then it is decided whether the speed will be increased or
reduced by 2 1/min. FUCS starts at 55 1/min and ends ideally when reaching 115 1/min.
Phase 0: Phase 0 takes max.60sec. When the unbalance threshold of the first phase is reached, the
appliance performs a spin cycle with 100 1/min for 5 sec followed by a spin cycle pulse of
470 1/min.
Phase 1: The first phase takes max. 120 sec to obtain the required speed of 115 1/min. If the speed is
not reached after this 120 sec, the spinning cycle will be stopped. The laundry is dispersed
and it is changed to phase 2.
Phase 2: Phase 2 takes max. 60 sec. Here it is tried to obtain the speed of 115 1/min with various
unbalance limits. If the speed is not reached after 180 sec, the spinning cycle will be stopped
again. The laundry is dispersed and it is changed to phase 3.
Phase 3: In phase 3, the required speed is reduced to 85 1/min. Within 90 sec, speed should be
reached, the machine then runs a spin-dry cycle at 100 1/min for 5 sec.and a subsequent
spin-dry pulse at 470 1/min, then again starting by phase 1. If the speed is reached, a
reduced spin-dry cycle at 650 1/min is carried out. If the speed is not reached, spin-dry is
skipped.

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Balancing after two attempts
- Low speed
- FUCS phase 0
- FUCS phase 1
- FUCS phase 2
Balancing after the third phase (normal spin-speed)
- FUCS phase 0
with spin pulse
- FUCS phase 1
- FUCS phase 2
- FUCS phase 3
with spin pulse
- FUCS phase 1
- FUCS phase 2
- FUCS phase 3
- Normal spin
Balancing after the third phase (reduced spin-speed)
- FUCS phase 0
- FUCS phase 1
- FUCS phase 2
- FUCS phase 3
with spin pulse
- FUCS phase 1
- FUCS phase 2
- FUCS phase 3
- reduced-speed spin
Unalancing after the third phase
- FUCS phase 0
- FUCS phase 1
- FUCS phase 2
- FUCS phase 3
- FUCS phase 1
- FUCS phase 2
- FUCS phase 3
- no spin