Milnor EX-15 ES, EX-25 ES, EX-15, EX-25 Maintance Manual

WARNING: ALL OPERATING AND MAINTENANCE PROCEDURES SHOWN ON THE NEXT
PAGE OF THIS MANUAL MUST BE FOLLOWED DAILY FOR PROPER OPERATION OF
YOUR WASCOMAT MACHINE.

PLEASE ENTER THE FOLLOWING INFORMATION AS IT APPEARS ON THE MACHINE(S)
DATA PLATE(S).

MAKE CERTAIN TO KEEP THIS MANUAL IN A SECURE PLACE FOR FUTURE
REFERENCE.

MACHINE TYPE OR MODEL

MACHINE SERIAL NUMBER(S)

ELECTRICAL CHARACTERISTICS:________ VOLTS, _______ PHASE, ______ HZ.

OPERATING & MAINTENANCE MANUAL

EX-15 and EX-25

Emerald Series

438 9030-01/02

97.02

NOTICE TO: OWNERS, OPERATORS AND DEALERS OF WASCOMAT MACHINES

II

IMPROPER INSTALLATION AND INADEQUATE MAINTENANCE, POOR HOUSEKEEPING AND WILLFUL
NEGLECT OR BYPASSING OF SAFETY DEVICES MAY RESULT IN SERIOUS ACCIDENTS OR INJURY.
TO ASSURE THE SAFETY OF CUSTOMERS AND/OR OPERATORS OF YOUR MACHINE, THE FOLLO­WING MAINTENANCE CHECKS MUST BE PERFORMED ON A DAILY BASIS.

1. Prior to operation of the machine, check to make certain that all operating instructions and
warning signs are affixed to the machine and legible. (See the following page of this manual
for description and location of the signs.) Missing or illegible ones must be replaced imme­diately. Be sure you have spare signs and labels available at all times. These can be obtai­ned from your dealer or Wascomat.

2. Check the door safety interlock, as follows:
(a) OPEN THE DOOR of the machine and attempt to start in the normal manner:

For coin-operated models, select a wash cycle, insert the proper coins and press the
START button.

For manually operated models, select a wash cycle and press the START button.

THE MACHINE(S) SHOULD NOT START !

(b) CLOSE THE DOOR to start machine operation and, while it is operating, attempt to

open the door without exerting extreme force on the door handle. The door should
remain locked!

If the machine can start with the door open, or can continue to operate with the door
unlocked, the door interlock is no longer operating properly. The machine must be
placed out of order and the interlock immediately repaired or replaced.(See the door
interlock section of the manual.)

3. DO NOT UNDER ANY CIRCUMSTANCES ATTEMPT TO BYPASS OR REWIRE ANY OF
THE MACHINE SAFETY DEVICES AS THIS CAN RESULT IN SERIOUS ACCIDENTS.

4. Be sure to keep the machine(s) in proper working order: Follow all maintenance and
safety procedures. Further information regarding machine safety, service and parts can be
obtained from your dealer or from Wascomat through its Teletech Service Telephone - 516/
371-0700.

All requests for assistance must include the model, serial number and electrical characteristics as
they appear on the machine identification plate. Insert this information in the space provided on the
previous page of this manual.

5. WARNING: DO NOT OPERATE MACHINE(S) WITH SAFETY DEVICES BYPASSED, REWIRED OR
INOPERATIVE! DO NOT OPEN MACHINE DOOR UNTIL DRUM HAS STOPPED ROTATING!

CAUTION

1. Do not open washer door until cycle is completed, operating

light is off, and wash cylinder has stopped rotating.

2. Do not tamper with the door safety switch or door lock.

3. Do not attempt to open door or place hands into washer to

remove or add clothes during operation. This can cause
serious injury.

MACHINE SHOULD NOT BE USED BY CHILDREN

PRECAUCION

1. No abra la puerta de la máquina lavadora sino hasta que la
máquina haya terminado su ciclo, la luz operativa esté apaga
da y el cilindro de lavado haya completamento terminado de

girar.

2. No interferia o manipule el switch o la cerradura de la puerta.

3. No trate de abrir la puerta o meta las manos dentro de la
máquina para meter o sacar ropa mientras la máquina está
en operación, pues puede resultar seriamento herido.

LAS MÁQUINAS NO DEBEN SER USADAS POR NIÑOS

SAFETY AND WARNINGS SIGNS

Replace If Missing Or Illegible

One or more of these signs must be affixed on each machine as indica­ted, when not included as part of the front instruction panel.

LOCATED ON THE OPERATING INSTRUCTION SIGN OF THE MACHINE:

Contents

Introduction ......................................................................1

Technical data.................................................................. 2

Installation ........................................................................5

Safety rules .................................................................... 12

Operating instructions .................................................... 13

Programming..................................................................19

Wash cycles ...................................................................22

Mechanical and electrical design ................................... 31

Serviceprogram.............................................................. 55

Trouble shooting ............................................................58

Maintenance...................................................................83

Safety instructions

• This machine is designed for water washing only.

• This machine must not be used by children.

• All installation operations are to be carried out by qualified
personnel. Licensed personnel are necessary for all electric
power wiring.

• The interlock of the door must be checked daily for proper
operation and must not be bypased.

• All seepage in the system, due to faulty gaskets etc., must be
repaired immediately.

• All service personnel must be fully familiar with the operating
manual before attempting any repair or maintenance of the
machine.

• This machine must not be sprayed with water, otherwise short
circuiting may occur.

• Fabric softeners with volatile or inflammable fluids are not to
be used in the machine.

The manufacturer reservs the right to make changes to design and
material specifications.

EX-15 ES, EX-25 ES

1

3317

Introduction

The washer-extractors described in this manual are high-speed extract machines
with built-in wash programs. They are designed for use in applications such as
apartment-house laundries, hotels, commercial laundries, in industry, hospitals,
small institutions, and by other users who require a machine with a high level of
reliability, good performance and easy maintenance.

The drum assembly on these models is of the suspended type, in other words not
rigidly mounted on the machine base. This means that a minimum of vibration is
transferred to the frame, which in turn simplifies installation as no concrete
foundation is required.

Vibration due to imbalance is further reduced because the drum begins the
extraction cycle at distribution speed, to distribute the load before extraction at
high speed.

The high extraction speed of the drum produces a G factor of approx. 300, which
ensures a high degree of water extraction.

The machine has an electronic program control unit with built-in wash programs
which can be modified through the use of option buttons. The program control
unit also includes a built-in service program to assist in tracing faults quickly and
efficiently.

The frequency-controlled motor is controlled by an advanced motor control unit.
This means that the motor speed can be controlled with precision and flexibility at
every stage in the program.

The machines are equipped according to customer requirements, with the option
of electric or steam heating. The water intake can be adapted for various
combinations of cold, hot and hard water supply.

Introduction

1

Fig.

1

2

Technical data EX-15 ES

Dry load capacity up to 15 lbs
Overall dimensions Width 720 mm 28 11/32 in

Depth 660 mm 26 in
Height 1100 mm 43 5/16 in

Net weight 169 kg 373 lbs
Maximum floor load 1.6 ± 0.7 kN 390 ± 170 lbs force
Crated dimensions Volume 0.66 m

3

23.3 cu.ft

Weight 181 kg 399 lbs
Inner drum dimensions Diameter 520 mm 20 1/2 in

Depth 310 mm 12 3/16 in

Volume 65 litre 2.3 cu.ft
Drum speed Wash 48 rpm

Distribution 90 rpm

Extraction 550/700/1020 rpm
G-factor During wash 0.8

During extraction 300
Motor speed During wash 415 rpm

During distribution 780 rpm

During extraction 4760/6060/8820 rpm
Voltage requirements 120 V 1-Phase 60 Hz or 208-240 60-1
Rated output power Max. Frequency controlled motor 700 W 0.9 HP

0-90 VAC 0-250 Hz

Overcurrent protection 15 A
Water connections Rec. pressure 2-6 kp/cm

2

25-85 psi

Hose connection, water DN 20 3/4 in
Drain connection Hose 50 mm 2 in

Technical data

3

Technical data EX-25 ES

Dry load capacity up to 25 lbs
Overall dimensions Width 720 mm 28 11/32 in

Depth 820 mm 32 9/32 in
Height 1100 mm 43 5/16 in

Net weight 255 kg 562 lbs
Maximum floor load 2.5 ± 0.95 kN 598 ± 232 lbs force
Crated dimensions Volume 0.77 m

3

27.2 cu.ft

Weight 270 kg 595 lbs
Inner drum dimensions Diameter 520 mm 20 1/2 in

Depth 470 mm 18 1/2 in

Volume 100 litre 3.5 cu.ft
Drum speed Wash 48 rpm

Distribution 90 rpm

Extraction 550/700/1020 rpm
G-factor During wash 0.8

During extraction 300
Motor speed During wash 415 rpm

During distribution 780 rpm

During extraction 4760/6060/8820 rpm
Voltage requirements 120 V or 208-240 V 1- Phase 60 Hz
Rated output power Max. Frequency controlled motor 1500 W 2.0 HP

0-90 VAC 0-250 Hz

Overcurrent protection 20 A at 120 V

15 A at 208-240 V

Water connections Rec. pressure 2-6 kp/cm

2

25-85 psi

Hose connection, water DN 20 3/4 in
Drain connection Hose 50 mm 2 in

Technical data

4

1 Door opening ø290 mm/11 7/16"
2 Soap box
3 Water connections (Hot and cold)
4 Electrical connection
5 Drain Ø 50 mm/2"
6 Steam connection 1/2" (optional)

M

3

3

K

H

F

4

6

3137

I

Right side

Front

ABCDEFGHIKLMN

EX-15 mm 720 660 1100 440 905 60 60 130 235 290 150 360 630

inch 28 11/32 26 43 5/16 17 5/16 35 5/8 2 3/8 2 3/8 5 1/8 9 1/4 11 7/16 5 29/32 14 5/32 24 13/16

EX-25 mm 720 820 1100 440 905 60 60 130 235 290 150 360 630

inch 28 11/32 32 9/32 43 5/16 17 5/16 35 5/8 2 3/8 2 3/8 5 1/8 9 1/4 11 7/16 5 29/32 14 5/32 24 13/16

2

1

AB

G

D

C

E

Rear side

L

5

N

Technical data

Installation

The machines are free-standing, i.e. the drum
can move relative to the frame of the machine.
This results in a considerable reduction in vibra­tion transferred to the frame which in turn
simplifies installation: no special foundation is
required.

The machine is delivered complete with expan­sion bolts etc. packed inside the drum. Move the
machine on its pallet to where it is to be installed
before removing the pallet retaining bolts.

Location

Install the machine close to a floor drain or open
trough.

In order to make installation and servicing the
machine easier the following clearances are
recommended:

• At least 20" between the machine and the wall
behind

• and a minimum of 2" on both sides of the
machine whether installed next to the wall or
other machines.

Where space is limited it is possible to reduce
this distance to a minimum of 1" at the rear and
sides, since most service operations are carried
out from the front or top of the machine.

Floor

The floor must be able to withstand the following
loads:

EX-15 ES EX-25 ES
static 390 lbs 598 lbs
dynamic 170 lbs 220 lbs
frequency of 17 Hz 17 Hz

dynamic force

0243

5

20"

2"

Installation

2

Fig.

2

Mechanical installation

Each machine is delivered with the drum locked
in place by four security bolts fitted between the
frame and the drum. In orderto remove these
and install the machine, proceed as follows:

• Unpack the machine.

• Slacken off the screws in the lower edge of
the front cover plate and remove the plate by
pulling downward and outward to unhook it
from the chassis.

• Unscrew the retaining screws on the rear
plate and remove the plate. Remove the
drainage connection by unscrewing the two
screws. Lift the drainage connection upwards
until comes loose from the rear plate.

• Mark and drill two holes (diameter =5/16")
about 4" deep in the positions shown.

• Remove the machine from the transport pallet.
Fit the adjustable feet provided.

• Place the machine above the bolt holes you
just drilled. Always lift the machine by the
chassis, never by the door or door handle.

• Remove the four security bolts holding the
drum to the chassis.

NOTE!

These security bolts must be removed
before operating the machine or it may be
damaged.

• Check that the machine is level and steady.
Adjust the level by using the four adjustable
feet (check first that they are screwed in as far
as possible). Lock the feet using the lock nuts
when the machine is satisfactorily positioned.

NOTE!

It is of utmost importance that the
machine be level, from side- to- side as
well as front- to- rear. If the machine is not
properly leveled, it may result in a false
out-of-balance cutout.

• Insert the expansion bolts supplied in the
holes drilled in the floor.

Fit the washers and nuts, and tighten well.
After the machine has been in use for a while

check and retighten the nuts if necessary.

0674

0244

0672

0671

6

EX 7
EX 10

720 mm

65mm

230mm

260mm

230mm

2 9/16 in

9 1/16 in

10 1/4 in

9 1/16 in

28 11/32 in

EX-25:
820mm
32 9/32 in

EX-15:
660mm
26 in

Fig.

4

Installation

3

4

5

6

Fig.

5

Fig.

3

Fig.

6

Water supply

NOTE!

All plumbing must conform to national
and local plumbing codes.

The water supply to the machine should be fitted
with manual shut-off valves to facilitate installa­tion and servicing.

Water inlets are labelled for hot and cold water
connections. Hoses should be flushed through
before being connected to the machine.

Connection hoses should be 3/4" reinforced
rubber hosing not to exeed 6 ft in length. Make
sure the hoses have no sharp bends or angles.

Water pressure should be:

maximum: 142 psi (10 kp/cm

2

)

recommended: 25-85 psi (2-6 kp/cm

2

)

7

0248

1597

1598

Cold water

Hot water

Fig.

7

Fig.

8

Fig.

9

Installation

7

8

9

8

3147

0057

Steam connections (optional steam heating)

The steam inlet pipe must be fitted with a manual
cut-off valve in order to facilitate installation and
service operations.

Fit the filter supplied to the manual cut off valve.
The connection hose must be of an approved type.

Connection size at filter: DN 15 (1/2").
Steam pressure required:

minimum: 7.1 psi (0.5 kp/cm

2

)

maximum: 114 psi (8 kp/cm

2

)

recommended: 57 psi (4 kp/cm

2

)

Check that there are no sharp angles or bends in
the connection hose.

Drain connection

Connect a 50 mm (2") pipe or rubber hose to the
machine’s drain pipe. Avoid sharp bends which
may prevent proper draining.

The drainage pipe should be located over a floor
drain, drainage channel or similar so that the
distance between the outlet and the drain is at
least 25 mm (1"). Refer to local regulations on
watersupply and drainage.

Installation

10

11

Fig.

10

Fig.

11

9

Electrical installation

Electrical installation must be carried out
by an authorized electrician, and must
follow national and local regulations. Make
sure that the ground wire is properly
connected.

• Install a 1-phase circuit breaker for the
machine’s electrical supply.

• Connect the machine’s cable between the
circuit breaker and the machine.

• Check that the earth ground has been
connected in the correct way.

For the rating of the supply cable, check the local
regulations.

Machines connected for 1-phase 120V or 240V
AC.

Installation

12

3150 b

Fig.

12

10

13

15

1600

1602

1820

Start-up and safety checklist

Before initial start-up of a Wascomat washer­extractor, the following safety checks must be
performed:

• Make sure that all electrical and plumbing
connections have been made in accordance
with applicable local codes.

• Use only flexible water fill and drain hoses of
the proper length to avoid sags and kinks.

• Make sure the machine is properly grounded
electrically.

Before the machine is operated, the door safety
interlock must be checked for proper operation
as follows:

• When washer loading door is open, the
machine must not start. Verify this by
attempting to start washer with door open.

• When washer is in operation, the loading door
is locked and cannot be opened. Verify this by
attempting to open the loading door when the
machine is operating. If necessary, consult
this manual for proper operation of the door
lock and door safety interlock or call a
qualified serviceman.

IMPORTANT:

Door safety interlock must be checked daily
in accordance with above procedure.

WARNING:

Before servicing Wascomat equipment,
disconnect electrical power.

Installation

Fig.

13

14

Fig.

14

Fig.

15

11

1822

16

Function control check-out list

In the machine cylinder, you will find the warranty
registration card, a copy of the warranty policy
and other pertinent material.

The warranty card should be completed and sent
to Wascomat. All other items should be placed in
a safe place for future reference.

The machine should be cleaned when the
installation is completed and checked out as
detailed below without loading the machine with
fabrics:

1. Check the incoming power for proper voltage,
phase and cycles.

2. Open manual shut-off valves to the machine.

3. Turn on electric power.

4. Check the door safety interlock as detailed on
page 10 of this manual.

5. Select the HOT program and start the
machine.

6. Run through a complete cycle, checking for
water temperature, drain operation and the
extract function.

7. In the mainwash only hot water should enter.
If cold water comes in, the hoses are
improperly connected. Reverse hot and cold
water hoses.

NOTE

All machines are factory tested prior to
shipment. Occasionally, some residual
water may be found when the machine is
installed.

17

HOT

Time Temp.

(Min.)

Prewash 3 Warm
Detergent 1
Drain 1
Mainwash 6 Hot
Detergent 2
Drain 0.7
Extraction 0.5
Rinse 1 1 Warm
Drain 0.7
Extraction 0.5
Rinse 2 1 Cold
Drain 0.7
Extraction 0.5
Rinse 3 2 Cold
Detergent 3
Drain 0.7
Extraction 4
Shake-out 0.5
Total time 22

(water fill time
not included)

1203

Fig.

17

Fig.

16

Installation

12

Safety rules

• This machine is designed for water washing only.

• Machines must not be used by children.

• All installation operations are to be carried out by qualified personnel.
Licensed personnel are necessary for all electric power wiring.

• The interlock of the door must be checked daily for proper operation
and must not be bypassed.

• All seepage in the system, due to faulty gaskets etc., must be repaired
immediately.

• All service personnel must be fully familiar with the operating manual
before attempting any repair or maintenance of the machine.

• This machine must not be sprayed with water, otherwise short circuiting
may occur.

• Fabric softeners with volatile or inflammable fluids are not to be used in
this machine.

Safety Rules

13

7

Heavy Soil Prewash
Prewash

Wash
Rinses

Final Extract

Extra Extract
Doorlock delay

Door unlocked

Add bleach if desired

Rinse 1
Rinse 2
Rinse 3Softener

EXTRA

EXTRACT

GENTLE

WASH

A

B

2
3
4

5

START

Hot

Warm

Cold

Delicate

Perm Press

Quick-Wash

Heavy Soil

6

1

1

1

2

3

The Emerald Series program unit controls the various functions of the machine
in a certain time sequence with the aid of seven built-in standard programs.
The standard programs can also be modified by selecting various options. By
selecting options, the user has access to programs for all types of wash loads
and degrees of soiling.

The control panel consists of program selection buttons (A), option buttons (B),
a combined start, pause and rapid advance button (C), symbols with LEDs (D)
which show the program selected and the program sequence, plus an alphanu­meric display (E).

The alphanumeric display shows illuminated green characters.
In the event of faults, error codes will be displayed on this window. See Fault

codes.

18

Explanation of control panel

A Program selection buttons
B Option buttons
C Start/pause and rapid advance button
D Symbols with LEDs to indicate program sequence
E Information display

3423

Fig.

18

Operating instructions

D

E

B

A

C

14

Washing

• Press the button for the desired program.

• Now the LEDs alongside the program symbols
will show what the selected program consists of.

• Press the button(s) for any options required.

• This option button gives a longer extraction time
on "Hot", "Warm", "Cold", "Delicate" and "Perm
Press" programs.

• This option button gives "Gentle action" in all
programs except "Delicate" which has gentle
action as standard.

NOTE!

Gentle actions consists of 6 seconds pause,
as opposed to 18 seconds rotation and 6
seconds pause for Normal action.

• Add the correct amount of detergent and fabric
softener.

• Press the START button.

3426

2288

2289

2290

3427

3435

23

22

21

20

Fig.

19

Fig.

20

Fig.

22

A

B

Operating Instructions

19

24

Fig.

21

Perm Pres

s

Quick-Was

h

2
3
4

5

START

Hot

Warm

Cold

Delicate

Heavy Soil

6

1

7

Heavy Soil Prewash

Prewash
Wash

Rinses
Final Extract

Extra Extract
Doorlock delay

Door unlocked

Add bleach if desired

Rinse 1
Rinse 2
Rinse 3Softener

1

1

2

3

START

Fig.

23

Fig.

24

15

• Now the display will show the clock symbol
and two digits. The two digits are the time
left before the wash will be finished.

The two digits indicating time left will not
appear when the machine is first installed.
Each program needs to have been used at
least once before the time left will be
displayed.

• For 5 minutes immediately after START is
pressed the colon character (

: ) will flash on

the display. As long as this character is still
flashing a new program can be selected
(without the drain opening). This means you
still have the chance to change the setting if
the wrong program has been selected. Do
as follows:

• Press START.

• Select a new program.

• Press START again after making any
change in the program selected.

If for any reason you wish to halt the wash
cycle for a time, press the START button for a
moment or two. The program will be suspended
and the drain will remain closed.

To restart the program, press the START
button again briefly.

Fig.

25

Operating Instructions

Fig.

26

Fig.

27

27

3435

START

3434

26

Hot

1

3141

25

16

START

Operating Instructions

For coin-operated machines

Select a wash program, then insert the number
of coins corresponding to the figure shown on
the display.

As each coin is added the machine counts
backwards towards 00 on the display. The
machine will not start until the display shows 00.

• Press the START button.

• Now the display will show the clock symbol
and two digits. The two digits are the time left
before the wash will be finished.

The two digits indicating time left will not
appear when the machine is first installed.
Each program needs to have been used at
least once before the time left will be dis­played.

• For a time immediately after START is pres­sed the colon character (

: ) will flash on the

display. As long as this character is still
flashing a new program can be selected
(without losing anything). This means you still
have the chance to change the setting if the
wrong program has been selected.

• Press PAUSE/START.

• Select a new program.

• If the new program costs more to run than
the amount already paid, the difference will
be shown on the display. Insert enough coins
to make the display show 00 again.

• Press START again after making any change
in the program selected.

3435

2253

Fig.

28

3141

28

29

30

Fig.

29

Fig.

30

17

Rapid advance

Whole steps in programs can be skipped
using rapid advance.

• Press and hold the START button until
the program indicator LEDs have mo­ved past the program steps you wish to
skip.

Program end

After final extraction, the LED by the
"doorlock delay" comes on. This shows
that the door lock will shortly be unlocked.

The door will not actually be unlocked until
the green LED by the "door unlocked"
comes on, accompanied by an audible
signal. This takes about 1 minute.

Troubleshooting

If the machine won’t start, check that:

• the circuit breaker is on.

• the manual shut-off valves for water are
open.

• a program has been selected.

• the door is properly locked.

3435

Fig.

31

3424

3425

Fig.

33

Operating Instructions

31

32

33

Fig.

32

START

Doorlock delay
Door unlocked

D

oorlock delay

D

oor unlocked

18

Operating Instructions

Maintenance

This machine has been carefully designed to minimize preventive
maintenance. However, the following routine operations should be
performed at regular intervals (depending on how much the machine is
used).

Daily

• Clean detergent residue from the door seal and check that the door
does not leak.

• Clean the detergent compartments and wipe down the machine with a
damp cloth.

• Check that the drain valve does not leak.

• Start the machine and check that the door is locked while the machine
is operating.

Every three months

• Check for leaks in valves, hoses and connections.

• Remove any lint from the machine’s drainage system.

• Check water inlet screens for clogging.

19

Programming

Coin-operated machines

In coin-operated machines the prices for the
various programs have to be programmed in.

Values from the coin mechanism (the
accumulated value) can be read out with the aid
of the service program.

If a machine is fitted with a coin mechanism after
its original installation the relevant electronic
circuitry will have to be activated before the prices
can be programmed in.

Only trained service personnel may use the
service program and program in prices for
coin operation.

Activation of electronic circuitry in machines
fitted with coin operation after original instal­lation.

• Press the service button.
Now certain of the buttons switch to being

number keys (1 to 9), with the START button
being 0.

3429

Fig.

34

Fig.

35

35

A

1

1

4

3

2

6

5

8

7

9

3400

34

0

20

Programming

Codes 91 and 92 are used to store the values for
coin slots 1 and 2. For mechanisms with only one
slot, only code 91 is used.

The values to be stored are the ratio of one coin
to the other.

For example: if the coin slots are for a 10 cent
coin and a 50 cent coin. The value 10 should be
stored under code 91, and the value 50 should be
stored under code 92.

• Enter code 91 using the buttons which have
become number keys 9 and 1.

The display will now show 91.

• When entering the actual value: keep the
price-programming button activated (the switch
is located under the top cover at the right front
edge). Enter the value 1 and then release the
button.

• Enter code 92. The display will now show 92.

• Enter the value 5.

• Exit the service program by pressing the
service button again.

2275

2274

2276

2272

3400

36

37

38

3940

Fig.

36

Fig.

37

Fig.

38

Fig.

39

Fig.

40

21

Programming

Price programming:

• Press the relevant wash program selector
button.

When programming the price of a wash program
plus options, press both the relevant program
selector button and the option button.

• Keep the price-programming button activated.
Now the display shows 00 plus the coin sym-

bol.

• Enter the price via the numerical key functions.
The START button can be used to enter 0.

• Release the price-programming button.

This procedure should be repeated for all wash
programs.

2273

41

Fig.

41

22

Wash Cycles

In the figure below and on the following page is an overview of the seven
wash cycles.

On the pages following you will find a more detailed description of the
cycles.

42

HOT WARM COLD PERM PRESS

Time Temp. Time Temp. Time Temp. Time Temp.

(Min.) (Min.) (Min.) (Min.)

Prewash 3 Warm 3 Warm 3 Cold 3 Warm
Detergent 1
Drain 1 1 1 1
Mainwash 6 Hot 6 Warm 6 Cold 6 Warm
Detergent 2
Drain 0.7 0.7 0.7 0.7
Extraction 0.5 0.5 0.5 0.5
Rinse 1 1 Warm 1 Cold 1 Cold 1 Cold
Drain 0.7 0.7 0.7 0.7
Extraction 0.5 0.5 0.5 0.5
Rinse 2 1 Cold 1 Cold 1 Cold 1 Cold
Drain 0.7 0.7 0.7 0.7
Extraction 0.5 0.5 0.5 0.5
Rinse 3 2 Cold 2 Cold 2 Cold 2 Cold
Detergent 3
Drain 0.7 0.7 0.7 0.7
Extraction 4 4 4 2
Total time 22 22 22 20

(water fill time
not included)

Wash Cycles

Fig.

42

23

43

DELICATE QUICK-WASH HEAVY SOIL

Time Temp. Time Temp. Time Temp.

(Min.) (Min.) (Min.)

Prewash 2 Warm
Drain 1
Prewash 3 Warm
Detergent 1
Drain 1
Mainwash 4 Warm 5 Warm 8 Hot
Detergent 2
Drain 0.7 0.7 0.7
Extraction 0.5 0.5 0.5
Rinse 1 1 Cold 1 Cold 1 Warm
Drain 1 1 0.7
Extraction 0.5
Rinse 2 1 Cold 1 Cold 1 Cold
Drain 1 1 0.7
Extraction 0.5
Rinse 3 2 Cold 2 Cold 2 Cold
Detergent 3
Drain 0.8 0.8 0.8
Extraction 1 4 4
Total time 13 17 27.4
(water fill time

not included)

Wash Cycles

24

Hot

Prewash

After the machine has started and the door
automatically locked, the drain valve will close
and the hot and cold water valves will open to fill
the machine with mixed hot and cold water to the
level determined by the level control. At the same
time detergent from compartment 1 is mixed with
the incoming water.

When this level is reached, both water valves will
close. During filling and then through the wash
program the drum has a reversing rotation.

At the end of the prewash, the drain valve will
open.

Mainwash

After draining the drain valve will close again and
hot water will fill to the level determined by the
level control. At the same time detergent from
compartment 2 is mixed with the incoming hot
water.

The water level controlled machine will now wash
the fabrics for 6 minutes. The machine is then
emptied, followed by a 30 second extraction.

Rinses

Hot and cold water are filled to the medium level
for the first rinse which lasts one minute, followed
by spin extraction for 30 seconds. After the
extraction comes the second rinse in cold water,
ending with extraction, whereafter the third rinse
is started. Fabric softener is automatically
admitted during the third rinse. The fabrics are
rinsed in cold water for two minutes followed by
an extraction of four minutes duration.

HOT

Time Temp.

(Min.)

Prewash 3 Warm
Detergent 1
Drain 1
Mainwash 6 Hot
Detergent 2
Drain 0.7
Extraction 0.5
Rinse 1 1 Warm
Drain 0.7
Extraction 0.5
Rinse 2 1 Cold
Drain 0.7
Extraction 0.5
Rinse 3 2 Cold
Detergent 3
Drain 0.7
Extraction 4
Total time 22

(water fill time
not included)

Wash Cycles

44

Fig.

44

25

Warm

On starting the machine, the door will automatic­ally be locked, and the pre-wash carried out as
previously described, whereafter the main wash
is started.

As the main wash is started, the drain valve
closes, detergent is admitted and mixed hot and
cold water is filled to the level determined by the
level control.

On reaching this level, the water valves are
closed.

The water level controlled machine will now wash
the fabrics for six minutes. The machine is then
emptied.

Cold water is filled for the first rinse which lasts
one minute, followed by extraction for 30
seconds.

After this extraction comes the second rinse in
cold water ending with extraction, whereafter the
third rinse is started. Fabric softener is
automatically admitted during the third rinse. The
fabrics are rinsed with cold water for two minutes
followed by a extraction of four minutes duration.

45

WARM

Time Temp.

(Min.)

Prewash 3 Warm
Detergent 1
Drain 1
Mainwash 6 Warm
Detergent 2
Drain 0.7
Extraction 0.5
Rinse 1 1 Cold
Drain 0.7
Extraction 0.5
Rinse 2 1 Cold
Drain 0.7
Extraction 0.5
Rinse 3 2 Cold
Detergent 3
Drain 0.7
Extraction 4
Total time 22

(water fill time
not included)

Wash Cycles

Fig.

45

26

46

Cold

On starting the machine, the door will automatic­ally be locked, the drain valve closed, the cold
water valve opened and the pre-wash carried out
as previously described, whereafter the main
wash is started.

As the main wash is started, the drain valve
closes, detergent is admitted and cold water is
filled to the level determined by the level control.

On reaching this level, cold water is closed.
The water level controlled machine will now wash

the fabrics for six minutes. The machine is then
emptied.

Cold water is filled for the first rinse which lasts
one minute, followed by extraction for 30
seconds.

After this extraction comes the second rinse in
cold water concluded with extraction, whereafter
the third rinse is started.

Fabric softener is automatically admitted during
the third rinse. The fabrics are rinsed with cold
water for two minutes followed by a extraction of
four minutes duration.

COLD

Time Temp.

(Min.)

Prewash 3 Cold
Detergent 1
Drain 1
Mainwash 6 Cold
Detergent 2
Drain 0.7
Extraction 0.5
Rinse 1 1 Cold
Drain 0.7
Extraction 0.5
Rinse 2 1 Cold
Drain 0.7
Extraction 0.5
Rinse 3 2 Cold
Detergent 3
Drain 0.7
Extraction 4
Total time 22

(water fill time
not included)

Wash Cycles

Fig.

46

27

Permanent Press

On starting the machine, the door will automatic­ally be locked, the drain valve closed, the hot and
cold water valves opened and the pre-wash will
be carried out as previously described, where­after the main wash is started.

As the main wash is started, the drain valve
closes, detergent is admitted and mixed hot and
cold water is filled to the level determined by the
level control.

On reaching this level, the water valves are
closed and the wash motor starts its reversing
rotation.

The water level controlled machine will now wash
the fabrics for six minutes. The machine is then
emptied.

Cold water is filled for the first rinse which lasts
one minute, followed by extraction for 30
seconds.

Fabric softener is automatically admitted during
the third rinse. The fabrics are rinsed with cold
water for two minutes followed by a extraction of
one minute duration.

Fig.

47

PERM PRESS

Time Temp.

(Min.)

Prewash 3 Warm
Detergent 1
Drain 1
Mainwash 6 Warm
Detergent 2
Drain 0.7
Extraction 0.5
Rinse 1 1 Cold
Drain 0.7
Extraction 0.5
Rinse 2 1 Cold
Drain 0.7
Extraction 0.5
Rinse 3 2 Cold
Detergent 3
Drain 0.7
Extraction 2
Total time 20

(water fill time
not included)

Wash Cycles

47

28

Delicate

On starting the machine, the door will automatic­ally be locked.

As the main wash is started, the drain valve
closes, detergent is admitted and mixed hot and
cold water is filled to the level determined by the
level control.

On reaching this level, the water valves are
closed.

The water level controlled machine will now wash
the fabrics for four minutes. The machine is then
emptied.

Cold water is filled for the first rinse which lasts
one minute.

Than comes the second rinse in cold water
whereafter the third rinse is started. Fabric softe­ner is automatically admitted during the third
rinse. The fabrics are rinsed with cold water for
two minutes followed by a extraction of one
minute duration.

During washing and rinsing gentle action is used,
which is 6 seconds drum rotation and 18 seconds
pause, then reverse direction and repeat. The
GENTLE WASH option button does not affect the
Delicate cycle.

48

DELICATE

Time Temp.

(Min.)

Prewash
Drain
Prewash
Detergent 1
Drain
Mainwash 4 Warm
Detergent 2
Drain 0.7
Extraction 0.5
Rinse 1 1 Cold
Drain 1
Extraction
Rinse 2 1 Cold
Drain 1
Extraction
Rinse 3 2 Cold
Detergent 3
Drain 0.8
Extraction 1
Total time

(water fill time 13
not included)

Fig.

48

Wash Cycles

29

Quick-Wash

On starting the machine, the door will automatic­ally be locked, the drain valve closed.

As the main wash is started, the drain valve
closes, detergent is admitted and warm water is
filled to the level determined by the level control.

On reaching this level, hot water is closed.
The water level controlled machine will now wash

the fabrics for five minutes. The machine is then
emptied.

Cold water is filled for the first rinse which lasts
one minute.

Then comes the second rinse in cold water,
whereafter the third rinse is started.

Fabric softener is automatically admitted during
the third rinse. The fabrics are rinsed with cold
water for two minutes followed by a extraction of
three minutes duration.

QUICK-WASH

Time Temp.

(Min.)

Prewash
Drain
Prewash
Detergent 1
Drain
Mainwash 5 Warm
Detergent 2
Drain 0.7
Extraction 0.5
Rinse 1 1 Cold
Drain 1
Extraction
Rinse 2 1 Cold
Drain 1
Extraction 0.5
Rinse 3 2 Cold
Detergent 3
Drain 0.8
Extraction 4
Total time 17

(water fill time
not included)

Wash Cycles

49

Fig.

49

30

Heavy Soil

On starting the machine, the door will automatic­ally be locked, the drain valve closed, the hot and
cold water valves opened and the two pre-wash­es will be carried out as previously described,
whereafter the main wash is started.

As the main wash is started, the drain valve
closes, detergent is admitted and hot is filled to
the level determined by the level control.

On reaching this level, the water valve is closed
and the wash motor starts its reversing rotation.

The water level controlled machine will now wash
the fabrics for eight minutes. The machine is then
emptied.

Hot and cold water are filled for the first rinse
which lasts one minute, followed by extraction for
30 seconds.

Fabric softener is automatically admitted during
the third rinse. The fabrics are rinsed with cold
water for two minutes followed by a extraction of
four minutes duration.

OPTION BUTTONS:

EXTRA EXTRACT -- Selecting this option adds

1.5 minutes to the final extraction Hot, Warm and
Cold and 1 min on Delicate and Perm Press
program. For example, the HOT cycle plus
EXTRA EXTRACT gives the customer a total of

5.5 minutes extraction. You can easily program
the washer to charge more money (usually one
more quarter) if this option is selected! The effect
of extra extraction depends on the type of
laundry washed, load size, etc.

GENTLE WASH -- The normal wash action of a
Wascomat washer is 18 seconds rotation, 6
seconds pause, reverse direction and repeat.
Selecting the GENTLE WASH option converts
the selected wash cycle to gentle action, which is
6 seconds drum rotation and 18 seconds pause,
reverse direction and repeat. The DELICATE
cycle always uses gentle action so it is not
affected by this option. There is no extra charge
to the customer for this option, so it is simply up
to them to choose their preference. You may
want to advertise and promote this option since
market research indicates there are people who
believe certain clothing items are too delicate to
wash in a commercial washer. Now you have the
answer!

50

Fig.

50

HEAVY SOIL

Time Temp.

(Min.)

Prewash 2 Warm
Drain 1
Prewash 3 Warm
Detergent 1
Drain 1
Mainwash 8 Hot
Detergent 2
Drain 1
Extraction 0.5
Rinse 1 1 Warm
Drain 0.7
Extraction 0.5
Rinse 2 1 Cold
Drain 0.7
Extraction 0.5
Rinse 3 2 Cold
Detergent 3
Drain 0.8
Extraction 4
Total time 27.4

(water fill time
not included)

Wash Cycles

31

General

This machine has a suspended drum, which means that the outer drum and
motor rest on a ”cradle” with four counterweights and a broad retaining
strap. The cradle rests on four coil springs and has four (EX 15) or five EX
25 shock absorbers which, together with the counterweights, are highly
effective in counteracting any imbalance which may arise from the load.

The inner drum is driven by a belt drive from the motor. This motor is
located above the outer drum, and has a device for belt tensioning. The
motor is frequency-controlled, which allows precise and reliable control of
its speed during wash, distribution and extraction stages of the program.

The union between the inner drum and the outer drum is at the rear and
uses two sealed bearings.

The drain valve is a membrane-type valve which is controlled by water
pressure. The machine can also be equipped with a drain pump.

The machine door is of the heavy duty rectangular type, which is locked
shut while the machine is operating.

The control panel has seven program-selection buttons, two option buttons,
and a combined start/pause and rapid-advance button. Each button has an
LED to show the current program selected. There are a further eleven
LEDs on the panel which are used to indicate the current status of the
program. The control panel display is used to show temperature, time left
for the program to run and error codes.

The program control unit is directly behind the control panel. Components
such as the motor control unit, relays, water valves are on a component
shelf at the rear of the machine, with easy access from above.

The side and front exterior panels may be of either stainless steel or of
cold-rolled, galvanised and enamelled sheet steel. The machine top is of
stainless steel.

Mechanical and electrical design

32

Water inlet valves

Door and
door lock

Base plate

Retaining
strap

Motor

Outer drum

Control valve, drain

Heating relay
(optional)

Transformer

Detergent
dispenser

Program unit
circuit board

Control
panel

Spring

Shock
absorber

Drain valve

51

3318

Motor control unit

Automatic control
unit

Mechanical and electrical design

Cradle/counter­weights

33

Machine construction

Panels

The machines are equipped with a top panel made of stainless
steel. The front panel is available in different colors or in stainless
steel. The colored panels are made of phosphatized steel plate.
For servicing purposes, the panels can easily be removed.

Frame

The frame consist of a bottom plate and two balance weights. The
balance weights form a cradle for the outer drum and are
suported by four springs. There are four shock absorbers to
control the movements of the drum.

Inner cylinder

The inner cylinder is made of perforated surgical stainless steel. It
is equipped with three lifting ribs and has highly-polished side
sheets and back with maximum embossed perforated area to
assure high flow of water and supplies through fabrics.

Scientifically correct ratio of cylinder diameter and depth assures
maximum washing action.

The shaft is electrically welded to the reinforced back of the cylin­der. A specially designed chrome-plated sleeve bushing protects
the seals from wear.

0922

Balance weight,
left-hand, front

Balance weight,
right-hand, front

Bottom plate

Clamping bolt

Spring

Shock-absorber

Tie strap

Clamping screw

Fig.

52

52

Mechanical and electrical design

34

Mechanical and electrical design

Back gable and bearing

The back gable and the bearing trunnion housing are constructed of
a webbed heavy casting for extra rigidity. There are three neopreene
seals to protect from filtration of water. The sleeve bearings are
water protected. An intermediate safety outlet provides an
escapement for any possible condensation.

The seals are mounted on a chrome-plated, non-corresive, specially
hardened sleeve bushing that is mounted on the drive shaft to
prevent wear of the seals and shaft. The main bearing is fitted
machine-tight into the bearing trunnion housing. A C-clamp is placed
on the shaft to prevent the cylinder from moving in and out.

The extension of the bearing trunnion housing supports the rear
bearing holding the shaft. The bearings are permanently lubricated
and need no maintenance.

Fig.

53

3432

53

Rear bearing

Bearing housing

Rear wall

Inner wall

Bushing

Sealing rings

Front bearing

C-clamp

35

Door

Description

The door is mounted on the outer drum of the
machine. The door glass is held inside the door by
three retainers and is easy to replace. The door
seal is retained by a flange on the outer drum and
creates a seal directly against the door glass. This
seal is not bonded in place, so is easy to replace.

Leaking door seal

If the seal shows no signs of scratches or other
damage, a loss of elasticity in the seal may be the
cause of a leak. Replace the seal.

Leaks from the door seal may also be caused by
dirt and build-up of lint. Clean the seal.

Door lock

Description

The machine door lock forms part of a safety sys­tem which prevents injury by ensuring that:

• The machine cannot be started until the door is
closed.

• The door cannot be opened until the wash
program is ended and the drum is at a standstill.

The lock consists of:

• The lock handle (door handle) which closes the
door and presses it against the door seal.

• The door lock, which locks the door when the
machine is operating. The lock contains a delay
mechanism in the form of a bimetallic
component which heats up when the lock is
activated. The door lock also has a closing
contact which sends a signal to the program
control unit when the lock is activated.

• The door status switch which closes a circuit and
sends a signal to the program control unit when
the door is closed.

3352

Door

Door glass

Retainers
(for glass)

Door lock

Door seal

Outer
drum

Door status
switch

Trim
panel

Lock handle

3373

Mechanical and electrical design

Fig.

54

54

36

Function

When the door is closed, the door status switch closes a circuit and sends
a signal to the program control unit to indicate that the machine is ready to
start.

When a program has been selected and the start button has been pressed,
the door lock will be activated and will lock the door, at the same as the
switch in the door status switch closes. Only now will the program control
unit allow the program to start.

When the door lock is activated a bimetallic component in the lock heats
up. If the power supply is interrupted, it takes about 1.5 minutes before the
bimetal cools enough to release the door lock. This gives enough time for
the drum to stop rotating and any water in the drum to be discharged (the
discharge valve will open automatically if the power supply is cut).

If a fault or error relating to the door locking system should arise, the
machine will stop and an error code will appear on the display (a flashing
two-digit code followed by E). These are the error codes which involve the
door lock:

Error code Cause

02E Door status switch open during program operation.
03E The lock has not locked the door within the set time.
17E Door status switch open, even though the door lock is locked.

To trace the cause of faults which initiate any of these codes, refer to
Trouble-shooting.

Mechanical and electrical design

37

Instructions for repair

To replace the door lock

To be carried out by authorised
personnel only.

• Remove the front panel.

• Release the door lock by unscrewing the two
screws.

• Pull out the lock mechanism. Transfer the
electrical connections one by one from the old
lock to the new.

• Insert the new unit and secure it with the
screws. Close the door and check carefully that
the lock will hold the door shut properly.

• Run a program, check that the door lock is
really locking the door and that it is not possible
to open the door for a period of 1.5 minutes
after the program has ended.

To replace the door status switch

To be carried out by authorised
personnel only.

• Remove the front panel.

• Undo the four screws for the hinges and
remove the door.

• Unscrew the two screws holding the door lock
and take off the mounting plate.

• Remove the trim panel as follows:

- The trim panel is fixed to the outer drum by

six plastic rivets. Each of these rivets was
originally fixed by a wedge tapped into place
at its centre, causing it to expand.

- Use a suitable tool to tap these wedges, to

release each one from its rivet. This will
allow you to remove the trim panel.

• Unscrew the door status switch and replace the
microswitch, or possibly the entire switch unit.

• Install the switch unit and fix the trim panel
back in place. New wedges for the rivets are
supplied in the spare parts kit for the door
status switch.

• Refit the door lock and door.

• Check the door status switch functions with the
aid of the service program (see Chapter 12,
Fault-finding).

3374

Door lock

Outer
drum

3373

2224

Rivet

Panel

Bracket

Microswitch

56

55

Mechanical and electrical design

Door status
switch

Fig.

55

Fig.

56

38

Mechanical and electrical design

Electrical components

3335

E10 L1 T10 K21

F12 F22 F11 F21 C1 LC1

P1 S

P1 Electronic, microprocessor-controlled program control unit. Controls the

sequences of the various programs as set out in program tables.

E10 Motor control unit, microprocessor-controlled. Controls the direction of rotation

and speed. The motor control unit is also used for imbalance monitoring and for

calculating the weight of the wash load.
K21 Relay for heating elements (option).
LC1 Surge protection filter
C1 Surge protection (capacitance)
T10 Low-voltage transformer, which supplies the program control unit with a number

of voltages.
F11 - F22 Fuses
S Control panel plate with integral push-buttons
L1 Surge protection (inductance)

Fig.

57

57

39

Electronic program control unit

Description

The program control unit is electronic and consists of a circuit board with
components. On one half are the microprocessor, program memory
(EPROM), power supply circuits, temperature and level control devices and
so on. On the other half are the relays and interference suppression
components. The program control unit has the following inputs and outputs:

• Inputs reacting to push-buttons on the control panel.

• Inputs which provide information on the machine’s door lock status, level
control, temperature sensors and coin mechanism if installed.

• Outputs which via relays directly control the various functions of the
machine, e.g. motor control, water valves and door lock.

• Outputs to the display.

• Serial communication with the motor control unit.

The program control unit is controlled by the microprocessor, which fetches
its instructions from the program memory (EPROM). The EPROM contains
instructions for operation, the service program, control of relays, sensing of
inputs etc. The EPROM also contains the standard programs supplied with
the machine.

Fig.

58

X73
Imbalance
switch

X74
Temperature
sensor

X75
Motor control
unit

X76
Price=zero

X80
Valves

X81
Valves

X82
Valves

X83
Heating

X84
CP80

X71
Door lock

X72
Voltage feed

F1 (1A/250V)
For electronics

Buzzer

Microprocessor

Relays

Program memory (EPROM)

Level sensing
device

Service switch

2316

X79
Discharge

X78
Input voltage

Interference
suppression
components

To
control
panel

X77
Coin mechanism

F2, F3 (1A/250V)
For display

Mechanical and electrical design

58

40

Operating time, accumulated coin value,
EPROM no.

The machine’s built-in service program can be
used to check the machine’s accumulated
operating time, the accumulated coin value (for
coin-operated machines), and the program
EPROM part number.

Accumulated operating time

To check during normal operation

The machine needs to be actually operating
(program selected and started).

The buttons identified as A and B in the illustration
may be ”concealed” on some machines, in other
words, have no symbols or other markings. They
will still be usable for this function, however.

Press button A. The first two digits of a four-digit
number will now be displayed, e.g. 13.

Press button B. The last two digits of a four-digit
number will now be displayed, e.g. 47.

This means that the machine’s accumulated
operating time is 1,347 hours.

To switch on service mode

• Remove the machine top and the cover for the
program unit circuit board.

• Press the service switch. This switch is on the
left-hand edge of the circuit board when viewed
from the machine front. The display will now
show SE, which means that the service
program is activated.

Now some of the buttons switch to being number
keys (1 to 9). The start button becomes an ON/
OFF key.

To switch off service mode

Press the service switch again, or switch off the
machine power supply.

Mechanical and electrical design

62

A

1

1

4

3

2

6

5

8

7

9

ON/OFF

3385

2269

61

3400

59

2242

2241

2224

A

+

B

A

B

1,347 hours’ operating time

=

60

Service switch

Fig.

61

Fig.

60

Fig.

62

Fig.

59

41

To check in service mode

Enter code 43. The first two digits of a four-digit
number will now be displayed, e.g. 13.

Enter code 44. The last two digits of a four-digit
number will now be displayed, e.g. 47.

This means that the machine’s accumulated
operating time is 1,347 hours.

Mechanical and electrical design

Fig.

63

+
=

2242

2241

Code 43

Code 44

1,347 hours’ operating time

63

42

To check in service mode

Enter code 41. The first two digits of a four-digit
number will now be displayed, e.g. 06.

Enter code 42. The last two digits of a four-digit
number will now be displayed, e.g. 58.

This means an accumulated coin value of 658
currency units or 658 tokens. In other words, it
shows that 658 currency units or tokens have been
inserted into the coin mechanism up until the time
of the check.

Mechanical and electrical design

Fig.

64

+
=

2239

2240

Code 41

Code 42

658 currency units/tokens

64

43

Program EPROM part no. (check in service mode)

Enter code 51. The letter A and two digits will be
displayed, e.g. A47. ”A” denotes part no. (article
no.).

Enter code 52. The display will show (e.g.) 195.
Enter code 53. The display will show (e.g.) 803.
Enter code 54. The display will show (e.g.) 480.
When these digits are put together they make up

the full part number:
A471 958034. The two digits at the end are an

internal version number.

+
+
+

=

2235

22362237

2238

A (=part no.)471 958034
80 (code 54) = internal

version no.

Code 51

Code 54

Code 53

Code 52

65

Mechanical and electrical design

Fig.

65

44

Level control

Description

The "level control", which is located on the circuit
board, is a pressure switch which monitors the
different water levels in the drum by sensing the
air pressure in a tube which is connected to the
bottom of the drum. As the water rises in the drum,
the air inside the tube is compressed and at a set
pressure ("cut-out-level") the microprocessor cuts
out water filing.

When the water is emptied from the drum the
microprocessor switches back to the starting
position again, but now at lower water levels than
were needed to switch when the drum was filling.
These levels are called "on-levels". If during a
wash the water should sink below on-level, the
machine will be filled with water again, to cut-out­level.

Checking functioning and fault location

To be carried out by authorized personnel
only.

A faulty level control cannot be repaired. Instead
the whole circuit board must be replaced.

To check functioning of the level control

• Start the service program by pressing the
service button. Now certain of the buttons
switch to being number keys (1 to 9).

• Enter code 24. Now the display will show the
current level in the machine on a scale of 1 to

200. An empty machine should show a value
between 0 and 4.

• Press the START button. The machine will start
to fill.

• Check that the figure shown on the display is
counting upwards as the water level rises.

• After completing your check, stop filling by
pressing the START button.

• Enter code 21 and open the drain valve to
empty the machine.

• Quit the service program by pressing the
service button.

If machine is filling to a level which is too high:

• Check that the tube between the level control
and drum is not blocked. If necessary clean it
by disconnecting it at the level control end with
no water in the machine and blowing it clean.

• Check that the tube is undamaged.

• Test the machine by running a program.

Fig.

67

3400

Servicebutton

3385

A

1

1

4

3

2

6

5

8

7

9

ON/OFF

66

Mechanical and electrical design

67

Fig.

66

45

Motor

General notes

The motor is mounted on a motor mounting plate
above the outer drum. It drives the inner drum via a
drive belt. There is a belt-tensioning device on the
motor mounting plate.

The motor is connected to the electrical system via
a quick-connector.

This is a frequency-controlled motor. Its various
operating speeds (normal, distribution, extraction)
are controlled by a microprocessor-based motor
control unit, E10, in the automatic control unit.

The motor windings are protected by a thermal
cutout device.

Fig.

68

Belt tensioning device

3354

Mechanical and electrical design

68

46

Motor control unit

The motor control unit communicates with the program control unit board
via a serial (input/output) interface. With the aid of the motor control unit the
program control unit can control not only the speed of the motor at any
given point, but also the acceleration or deceleration rate at which the motor
is to achieve the speed required. The motor control unit constantly feeds
information on current status (both normal status and on any abnormalities
arising) back to the program control unit board.

The motor control unti can also supply data on the torque of the motor at
constant speed and when accelerating and decelerating. This data is used
both tor calculating the weight of the wash load and for detecting any
imbalance present.

WARNING
The voltage at test points 1-4 (TP1-4) has a potential difference of
approx. -100 V in relation to incoming neutral and ground. Because
of this, be careful when measuring. Use ungrounded oscilloscopes.
If the motor control unit has a green LED, this will remain lit for as
long as there are hazardous voltages present in components.

The motor control unit on the 100-litre machine has a cooling fan. The fan
starts automatically when the temperature reaches about 65°C which can
happen during extraction or if the surrounding temperature is high. When
the machine starts the fan is rotating for a short while.

Mechanical and electrical design

3715

69

Fig.

69

X 302

X 301

Green LED

Yellow LED

Fig.

70

X 312
Connections for
wash motor

Test point 2: 0V

Test point 3: 5V

Test point 4: 12V

X 311
Input voltage 220 V

Only on EX 25
machine

47

Fig.

70

3333

70

Mechanical and electrical design

LED pattern of flashes Error code Cause

31E Heat sink temperature too high.
32E Thermal protection for motor has cut out.
33E The motor control gets start signal but lacks lock acknowledgement.

Communications fault motor control-program control unit.

35E Short-circuit in motor windings, wire harness or internely in motor

control.
36E Fault in receiving circuitry for lock acknowledgement signal.
37E Too low DC level in the motor control.

38E Too high DC level in the motor control.

Motor control unit current-limiting function activated. Does not give

an error code.

Fault-finding

The fault-finding charts for all error codes are in Chapter 12, Fault-finding.

1
2
3
4
5

6
7
8

9

1 sec.

Fault/error indication

If a fault or error occurs in the motor or motor control unit, the latter will
indicate this to the program control unit board. Information on these errors,
besides appearing as an error code on the display, is also provided by a
yellow LED on the motor control unit board. To understand this additional
inform-ation, the pattern of flashes from the LED has to be observed and
compared with this chart:

Fig.

69

Yellow LED

Green LED

48

Extraction

For extraction the motor operates in an extraction pattern which is always
the same with regard to motor speed. The pattern is as follows:

1. A brief, fast extraction, which removes most of the water from the wash
load.

2. A brief reversed drum action, to allow optimum distribution of the load.

3. A distribution period with imbalance sensing – 20 seconds.

4. Extraction at 550 rpm – 30 seconds.

5. Extraction at 700 rpm – 2 minutes.

6. Extraction at 1020 rpm – remaining time out of the program's total
extraction time.

The different extraction cycles in the different programs are achieved by
varying the time that the motor will follow this extraction pattern.

Imbalance sensing

At the start of every extraction sequence, the system monitors variations in
the motor torque while the drum is operating at distribution speed. If these
variations are too great, it indicates that the load is unevenly distributed in
the drum. At this point extraction is halted, the motor speed is reduced to
wash speed and a fresh attempt to begin extraction starts. This procedure
will be repeated up to three times per extraction. After the third time the
system will decide whether the imbalance is "great" or "small".

• If the imbalance is "great", the extraction stage of the program will end
without extraciton having taken place.

• If the imbalance is "small", extraction will take place, but at a reduced
speed.

Fig.

71

Mechanical and electrical design

100

300

500

400200

1

000

800

600

400

200

0

0

1

2

3

4

5

6

rpm

71

3355

seconds

Imbalance check

49

3356

X = 7 mm when belt is new. Max. 9 mm
(3/8 inch) on subsequent checks of same
belt. If X = more than 9 mm (3/8 inch),
increase belt tension.

7 mm
1/4 inch

Max. 9 mm
3/8 inch

Belt tension

The tension of the drive belt is preset at the factory.
When checking belt tension, or after replacing

components which affect belt tension, follow the
instructions contained in the figure.

Note!
Correct belt tension is important. The

tension should always be checked as
part of service and maintenance.

Mechanical and electrical design

F = 30 N (EX-15)
F = 40 N (EX-25)

72

Fig.

72

50

1456

G116

Inlet valves

Construction

Each valve has a single-inlet with either one, two
or three outlets, each with its own solenoid coil.
The body is made of heat-resistant polyamid
plastic and the solenoids encased in water-tight
plastic.

A filter screen on the inlet side prevents dirt from
entering the valve. Flow restrictors can be placed
at either the inlet or any of the outlets.

Operation

When the solenoid is energized, the spring­loaded plunger is drawn up and the pilot valve in
the center of the diaphragm open. Because of
the difference in diameter between the pilot valve
opening and the ventilating hole in the diaph­ragm, the pressure above the diaphragm drops
to a point where the admission pressure below
the diaphragm can lift the diaphragm, thus ope­ning the valve.

When the current to the solenoid is cut off, the
plunger spring will press the plunger against the
pilot opening of the diaphragm. The pressure
above the diaphragm then rises to correspond to
the water inlet pressure and the pressure of the
spring will close the valve.

Spring

Solenoid

Plunger

Pilot valve

Ventilating
hole

Diaphragm

73

Mechanical and electrical design

74

Fig.

73

Fig.

74

51

1181

1186

1187

Repair instructions

Limescale can block the holes in the valve
diaphragm and interfere with the function of the
valve.

It is therefore advisable to dismantle and clean
the valve at certain regular intervals. The
frequency depends on operating conditions and
the level of contamination in the water.

If the valve does not open

• Check that power is supplied to the coil.

• Check the coil with an instrument to determine
whether there is a break or a short circuit.

• Dismantle the valve (see below) and check
the openings in the valve diaphragm.

• Check the inlet strainer and clean as required.

• Undo the coil and clean the surfaces of the
magnetic core.

If the valve does not close

• Check that the coil is not live. The valve is
normally closed when the magnet is not
energized.

• Check the return spring.

• Check the diaphragm (pilot pressure opening).

Dismantling the valve

• Pull the coil straight upwards. Use a
screwdriver if necessary to carefully undo the
coil.

• Use the tool supplied (attached to one of the
hoses when the machine is delivered) to open
the valve housing. Slide the tool over the
protruding plastic sleeve to that the pegs on
the tool engage the corresponding sockets in
the valve housing.

• Use a spanner or a pair of pliers and unscrew
the upper part of the valve housing.

75

Fig.

76

Fig.

77

Mechanical and electrical design

76

77

Fig.

75

52

Drain valve

Description

The water pressure of the cold water intake is
used for closing the drain valve. There is a hose
(1) connected between the water intake and the
control valve (2). When the control valve is
activated it opens and lets water into the supply
line (3) which is connected to the drain valve. The
water presses up a rubber membrane (4) and a
plunger (5) with a pressure plate (6) which closes
the valve's rubber membrane (7).

When the control valve shuts off water pressure to
the drain valve the springs (8) pull back the
plunger. The return water passes the control valve
and is discharged into the waste pipe via the
return hose (9).

Fault-finding

To be carried out by authorized personnel
only.

Drain valve will not close

Check that:

• Control valve (2) is energized.

• Hoses and control valve are not blocked, by
disconnecting the supply line (3) from the drain
valve and then activating the control valve.

• The rubber membrane (4) is sound.

• The plunger (5) is not binding.

Drain valve will not open

Check that:

• The return hose (9) is not blocked.

• The plunger (5) is not binding.

3359

1

2
3

8

9

7
6

4

5

78

Mechanical and electrical design

Fig.

78

53

Drain pump (optional)

Description

The pump is located under the drum and consists of a pump and pump motor, plus a
container with cover between the drain valve and the pump. Because the hose diameter at
the pump is less than the outlet of the drain valve there is the risk that solid matter and lint
will lodge between valve and pump. Any obstructions to the water flow can easily be
removed by taking off the cover on the container. There is also a hose connecting the
container with the backflow protection device.

Fault-finding

Machine will not empty

• Clean any foreign matter out of the pump.

• Check pump functioning:

- Is the motor energised?

- Has the impeller come loose from the motor shaft?

Fig.

79

Cover

Drain valve

Pump and pump
motor

To backflow protection
device

3384

79

Mechanical and electrical design

Container

54

1182

Soap supply box

The three-compartment soap supply box is located at the top of the
machine. Viewed from the front, the compartments marked with figures 1, 2
and 3 are used as follows:

Compartment 1
This compartment is used for adding detergent to the wash at the start of

the Prewash cycle.
Compartment 2
This compartment is used for adding supplies to the wash at the beginning

of the Mainwash cycle.
Compartment 3
The small compartment is used for adding fabric softener, which is flushed

down by a siphon action at the start of the third rinse.

Mechanical and electrical design

Fig.

80

80

55

Built-in service program

The machine has a built-in service program to
facilitate function checking and fault-finding.

This program may only be used by train­ed and authorized service personnel.

To switch on service mode

• Remove the machine top and the cover for
the program unit circuit board.

• Press the service switch. This switch is on the
left-hand edge of the circuit board when
viewed from the machine front. The display
will now show SE, which means that the
service program is activated.

Controls in service mode

Now some of the buttons switch to being
number keys (1 to 9). The start button becomes
an ON/OFF key. The various machine functions
can be tested using numerical codes (see table
on next page).

The LEDs to the left of the display show which
input signals to the program control unit are
active.

To switch off service mode

Press the service switch again, or switch off the
machine power supply.

Service button

3400

3385

3429

Fig

81

Fig

82

Fig

83

Fig

81

83

Service program

82

81

A

1

1

4

3

2

6

5

8

7

9

Key switch for price = zero
Coin slot 1

Coin slot 2
Price programming button

Switch in door lock
Door status switch
Remote start, e.g. by external
timer

56

Service program

Simulation of functions

Some machine functions can be simulated by entering a numerical code
via the keys. This function can then be switched on and off with the ON/

OFF key.
Number Code Function

11 Detergent signal 1, liquid detergent.
12 Detergent compartment 2, cold water /Detergent signal

2, liquid detergent.

13 Detergent compartment 3, cold water /Detergent signal

3, liquid detergent.

14 Detergent compartment 2, hot water /Detergent signal

4, liquid detergent.
15 Detergent signal 5, liquid detergent.
16 Hot water in drum.
17 Detergent compartment 1, cold water.
18 Hard water in drum.
19 Heat: display shows actual temperature in drum, not

code 19. When ”START” is pressed, the heating relay

reacts if the water level is above 64 scale units. (Safety

level).
21 Drain valve/pump
23 Activate door lock. When it is deactivated, the water

drain valve will also open.
24 Level check. The parameter corresponding to the

actual level will be shown on the display, not code 24.

When ”START” is pressed, filling with cold water

commences via detergent compartment 1.
25 Motor, wash speed low (30 rpm), counterclockwise.
26 Motor, wash speed low (30 rpm), clockwise.
27 Motor, wash speed high (48 rpm), counterclockwise.
28 Motor, wash speed high (48 rpm), clockwise.
29 Distribution speed (90 rpm), clockwise.
31 Extraction, low (550 rpm), clockwise.
32 Extraction, medium (700 rpm), clockwise.
33 Extraction, high (1000 rpm), clockwise.
34 Extraction, high (1000 rpm), clockwise.
35 Display, test of segments, LED test, and buzzer.
36 Buzzer

57Service program

Number Code Function

37 LED test
41-42 Coin mechanism (see Page 39, Program control

unit).

43-44 Counter (hours) for accumulated operating time (see

Page 39, Program control unit).
45 Last error code flagged.
51-54 Program EPROM part number (see Page 39,

Program control unit).
91 Coin value, coin slot 1. This is set using the price-

programming switch (see Page 39, Program

control unit).
92 Coin value, coin slot 2. This is set using the price-

programming switch (see Page 39, Program

control unit).
93 Availability of pause function in coin-operated

machines. Can be 1 = Yes or 0 = No. This is set

using the priceprogramming switch (see Page 39,

Program control unit).
94 Availability of rapid advance function in coin-

operated machines. Can be 1 = Yes or 0 = No. This

is set usingthe price-programming switch (see

Page 39, Program control unit).
95 Activate coin-op input. Can be 1 = Active or 0 = Off.

This is set using the price-programming switch (see

Page 39, Program control unit).
97 To program a price reduction on a coin-operated

machine, use the price-programming button. You set

a price reduction as a percentage between 0 and

99. Rounding-up will take place to the next coin

value upwards. A price reduction of 99% means a

free wash program.

58

Heavy Soil Prewash
Prewash

Wash
Rinses

Final Extract

Extra Extract
Doorlock delay

Door unlocked

Add bleach if desired

Rinse 1
Rinse 2
Rinse 3Softener

EXTRA

EXTRACT

GENTLE

WASH

A

B

2
3
4

5

START

Hot

Warm

Cold

Delicate

Perm Press

Quick-Wash

Heavy Soil

6

1

1

1

2

3

7

Trouble shooting

If the power supply to the machine should be cut while it is operating, the
program unit has a memory which stores the program selected for about 3
to 5 minutes.

Within this period the machine will restart automatically once the power
supply is restored.

Indication of faults/errors

Faults/errors in the program or machine are indicated by a numerical error
code followed by the letter E flashing on and off on the control panel
display.

In the case of error codes 01E, 02E, 03E and 14E, an attempt to restart the
machine may be made as soon as the fault/error has been remedied,
without the power supply being switched off. For the other error codes, a
service engineer must be called.

WARNING
When working on the motor control unit
The voltage at test points 1 - 4 (TP1 - 4) has a potential difference of
up to 300 V in relation to incoming neutral and ground. Because of
this, be careful when measuring. Use ungrounded oscilloscopes.

The motor functions as a generator when decelerating. If the motor
has not stopped, high voltages may be present on the motor control
circuit board even though the power supply to the machine has been
disconnected.

Trouble shooting

84

Fig.

84

Error code

3428

59

Error codes

Given below is a brief summary of all the error codes and their causes. Starting on page 5 of
this section there are fault-finding charts for all error codes.

At the end of the chapter there are also charts for faults which do not generate error codes.

Error code Cause

01E Water level not reached within set time. Take necessary action. Press START again.
02E Door status switch open during program operation. Take necessary action. Press

START again.

03E The lock has not locked the door within the set time. Take necessary action. Press

START again.

04E The temperature sensor indicates temperature below -5°C (open circuit).
05E The temperature sensor indicates temperature above 98°C (short-circuit).
06E The water level is above the safety level set for starting.
07E The water level is above the safety level set for program operation.
08E Temperature increase in water less than 5°C/10 min. (Heated machines).
10E The water level is above the safety level set for after drain.
12E The program control unit cannot read the program EPROM.
13E Program control unit receiving no response from the motor control unit.
14E Level system not temperature-calibrated. Press START to run the wash program.

Program will run, but the water level will not be optimally adjusted.

17E Door status switch open, even though the door lock is locked.

18E Not used.
19E Not used.

31E Temperature of motor control unit heat sink too high.
32E Thermal protection for motor has cut out.
33E Motor control unit receiving start command from program control unit without first

receiving lock acknowledgement signal. Motor control unit receiving circuitry for lock
acknowledgement signal is not faulty.

35E Motor control unit indicating short-circuit between outputs for motor windings.
36E Motor control unit indicating fault in interlock hardware.
37E Motor control unit indicating DC voltage level too low in motor control unit.
38E Motor control unit indicating DC voltage level too high in motor control unit.

Trouble shooting

60

Trouble shooting

Error codes which may arise on the control panel display

Error code/symptoms

Fault-finding Cause/Action

Check that the manual water valves (taps)
are open.

Taps turned on. Taps turned off.

Restart the program and use rapid advance to
get to main wash. Check that the machine is
filling with water.

Machine filling Machine not filling

Check input voltage on
relevant water valve (See
Program Tables, Chapter

4).
Voltage not Voltage

correct correct

Check water valve input
voltage at PCB connector
X80, X81a or X81b,
according to valve.

Voltage not Voltage
correct correct

Check input voltage
(230 V ) at PCB
connector X78.

Voltage not Voltage
correct correct

Check that the discharge valve is closed, i.e.
water level rising in drum.

Discharge valve closed Discharge valve open

Check that level tube is sound, not kinked, not
come loose from mother board.

Level tube OK Level tube not OK

01E

Acknowledgement signal for
water level not received within
time allowed.

X80

6 5 4 3 2 1

X81b

X81a

2 1 4 3 2 1

Y11 Y12 Y13

Y34 Y24 Y22

X78

2316

3331

2316

3350

Open taps. Press START
again.

Faulty valve. Check function
as described in Chapter 34.

Faulty wiring between
program control unit PCB and
water valve. Check wiring and
replace where necessary.

Faulty control output from
program control unit PCB.
Replace PCB.

Faulty wiring program control
unit PCB - transformer T10, or
faulty/incorrect strapping on
transformer T10.

Follow fault-finding procedure
for error code 06E in this
chapter.

Fit tube properly or replace it.

Level detection function on
program control unit PCB
faulty. Replace PCB.

Check voltage

Connec­tion

level
tube

61

Open door. Close door and try to restart the
machine.

Error code returns No error code

Set program control unit to service mode (see
”To switch on service mode”). The door status
switch will now be indicated by the LED
(illustrated).

Press in the door status switch manually and
check if this is indicated by the LED.

LED does not light. LED lights.

Disconnect the two wires from the switch. Short­circuit the two wires.

LED does not light. LED lights.

Remove connector X71 from the program control
unit PCB. Short-circuit between inputs 3 and 4.

LED does not light. LED lights.

Trouble shooting

1

4

X71

2316

02E

Door status switch open
during program operation.

Check whether the pin on the
door or the plastic slide which
the pin presses against are
worn. Replace any worn
parts.

Continuity fault in wiring or
connectors. Check wiring and
replace if necessary.

Fault in program control unit
PCB. Replace PCB.

Short­circuit

Door lock switch faulty.
Replace switch.

Cause/Action

Fault-findingError code/symptoms

Transient fault in door lock or
program PCB.

3430

Rinse 1
Rinse 2
Rinse 3

1

1

2

3

LED
indicating

Door
status

switch

62

Trouble shooting

Error codes which may arise on the control panel display

Open door. Close door and try to restart the

machine.

Error code returns No error code

Start service program and activate door lock

(code 23, press START). Check input voltage to

door lock, PCB connector X71 between termin-

als 1 and 2.

Voltage correct. Voltage absent or wrong.

Unscrew the door lock. Door and door lock).

Check voltage at door lock between terminals

X71:1 and 2 as illustrated.

Voltage correct. Voltage absent or wrong.

3390

L

N

C

1

4

Check
voltage

2316

X71: 2

1

Error code/symptoms

Fault-finding

Transient fault in door lock or
program PCB.

Faulty control output from
program control unit PCB.
Replace PCB.

Cause/Action

Faulty wiring between
program control unit PCB and
door lock. Check wiring and
change if necessary.

Faulty door lock. Replace
door lock.

X71

03E

The lock has not locked the
door within the set time.

63Trouble shooting

Error codes which may arise on the control panel display

Error code/symptoms

Fault-finding

Cause/Action

04E

Temperature sensing device
indicates temperature below ­5°C (continuity fault).

Turn the machine’s wall switch off and on again.
Start a program.

Error code returns No error code

Short-circuit the temperature sensor by the
sensor. Turn the machine’s wall switch off and
on again. Start a program. Check whether the
error displayed is 04E or 05E.

04E 05E

Remove PCB connector X74 on program control
unit PCB. Short-circuit inputs 1 and 2. Turn the
machine’s wall switch off and on again. Start a
program. Check whether the error displayed is
04E or 05E.

04E 05E

2

X74

1

2316

3399

Temperature
sensor

Check
voltage

Transient fault.

Temperature sensor faulty.
Replace sensor.

Fault in temperature sensing
device on program control
unit PCB. Replace PCB.

Rough values on the temp.
sensor

T (°C) R (ohm)
19 6100
20 5850
21 5600
22 5350
23 5100

Fault in wiring to temperature
sensor. Check wiring and
replace if necessary.

64

Trouble shooting

Error codes which may arise on the control panel display

Error code/symptoms

Fault-finding

Cause/Action

Turn the machine’s wall switch off and on again.
Start a program.

Error code returns No error code

Remove PCB connector X74 on program control
unit PCB. Turn the machine’s wall switch off and
on again. Start a program. Check whether the
error displayed is 04E or 05E.

04E 05E

Put back X74. Disconnect the link between
wiring and sensor by the temperature sensor.
Turn the machine’s wall switch off and on again.
Start a program. Check whether the error
displayed is 04E or 05E.

05E 04E

05E

Temperature sensing
indicates temperature above
98°C (short-circuit).

2316

X74

2

1

3399

Temperature
sensor

Transient fault.

Fault in temperature sensing
device on program control
unit PCB. Replace PCB.

Temperature sensor faulty.
Replace sensor.

Fault in wiring to temperature
sensor. Check wiring and
replace if necessary.

Rough values on the temp.
sensor

T (°C) R (ohm)
19 6100
20 5850
21 5600
22 5350
23 5100

65

Trouble shooting

Error codes which may arise on the control panel display

Error code/symptoms

Fault-finding Cause/Action

Are there water in the drum?

Yes No

Disconnect the level tube
from the program PCB.
Turn the machine’s wall
switch off and on again.
Start a program.

Error code 06E No error
code or
error code 01E

Turn the machine’s wall switch off. Does water
run out of the drum?

Yes No

Turn on wall switch. Start a program and let it
run.

Still an error code. No error code.

Check to see if the discharge valve is partially
blocked or not opening fully.

Discharge valve OK Discharge valve not OK

06E

Water level signal above
parameter set, on program
start-up.

3350

Faulty control signal to
discharge valve from program
control unit PCB. Replace
PCB.

Connec­tion

level
tube

Level tube probably blocked,
due to fluff of wrongly
mounted. Clean or replace
tube.
Nipple blocked on drain valve.

Check the discharge valve
(see Chapter 38). The service
program can be used (code

21) to open and close the
control valve for the discharge
valve.

Level sensing device on program
control unit PCB not working or
incorrectly calibrated.
Check zero level in the service
program see chapter 12 page 4,
code 24, zero level shall be
between 0 and 4.

Transient fault. No action
required.

Check to see if the discharge
valve is partially blocked or
not opening fully (see Chapter

38).

66

Trouble shooting

Error codes which may arise on the control panel display

Error code/symptoms

Fault-finding

Cause/Action

Turn the machine’s wall switch off and on. Start
a program.

Error code 06 No error code

Is there a valve still drawing water?

Yes No

Turn the wall switch off
and on. Disconnect level
tube from level sensing
device on PCB. Start a
program.

Error 07 or No error
06 returns code

Remove connector for valve input voltage.
Valve stops drawing water.Valve still drawing

water.

3350

07E

Water level signal above
parameter set for safety,
during program.

Transient fault or water has
been added manually.

Connec­tion

level
tube

Level tube probably blocked,
due to fluff or wrongly
mounted.
Clean or replace tube.
Nipple blocked on drain valve.

Level sensing device on pro­gram control unit PCB not
working or incorrectly calibrated.
Check zero level in the service
program, see chapter 12 page 4,
code 24, zero level shall be
between 0 and 4.

Faulty water valve. Clean or
replace valve (see Chap. 34).

Fault in control signal from
program PCB. Replace PCB.

67Trouble shooting

Error codes which may arise on the control panel display

Error code/symptoms

Fault-finding

Cause/Action

08E

Increase in water temperature
is below parameter set.
(Heated machines only).

Turn the machine’s wall switch off and on again.
Start a program.

Error code returns No error code

Check the input voltage to the machine. All fuses
sound?

Input voltage correct. Input voltage wrong.

Start the service program and fill with water
(code 24) to at least level 80.

Start heating (code 19). Measure voltage across
each element at element connections, alt
measure all phases with a clip-on ammeter (6­25A depending on the heating element effect).

Voltage wrong Voltage correct

Switch off power supply at
wall switch. Measure
resistance of elements:
should be 20 - 25 Ω (2.5
kW) or 40 - 50 Ω (1 kW).

Correct Wrong

Check voltage at outputs of relay 21.
An incorrect voltage Voltages correct

Check voltage at inputs of relay 21.
Voltages correct An incorrect voltage

Check visually that the relay has reacted.
Relay has not reacted Relay has reacted

On program control unit PCB check the voltage
at connector X83 between 1 and 2 (230 V).

Voltage correct Voltage wrong

Check input voltage to relay coil (230 V) on relay
21 between connections A1 and A2.

Voltage wrong Voltage correct

Replace fuse(s).

Transient fault. No action
required.

Element
connections

Check through hatch in drum
whether the elements are
coated with limescale. If
necessary de-scale them.

Replace faulty element.

Fault in wiring between relay
and element. Check wiring
and replace it if necessary.

Fault in wiring between relay
and connection block X1.
Check wiring and replace if
necessary.

Relay faulty. Replace relay.

Faulty control signal from
program PCB. Replace PCB.

Relay faulty. Replace relay.

Fault in wiring between PCB
and relay. Check wiring and
replace if necessary.

3399

Outputs

3332

X83

2316

Relay
21

Inputs

68

Trouble shooting

Error codes which may arise on the control panel display

10E

The water level is above the
safety level set for after drain.

Is water visible in the drum?

Yes No

Remove the water drain
valve from the drum. Is
there water at the bottom
of the drum?

Yes No

Disconnect the level tube
from the program PCB.
Turn the machine’s wall
switch off and on again.
Start a program.

Error code No error
06E or code or
error code error code
10E 01E

Turn the machine’s wall switch off. Does water
run out of the drum?

Yes No

Turn on wall switch. Start a program and let it
run.

Still an error code. No error code.

Check to see if the drain valve is partially
blocked or not opening fully.

Drain valve OK Drain valve not OK

3350

Error code/symptoms

Fault-finding

Level tube probably blocked.
Clean or replace tube.

Level sensing device on
program control unit PCB not
working or incorrectly
calibrated.

Transient fault. No action
required.

Faulty control signal to drain
valve from program control
unit PCB. Replace PCB.

Check the drain valve. The
service program can be used
(code 21) to open and close
the control valve for the drain
valve.

Cause/Action

Connection
level tube

Check to see if the drain
valve is partially blocked or
not opening fully.

69Trouble shooting

Turn the machine’s wall switch off and on again.
Start a program.

Error code returns No error code

Unscrew the program control unit PCB. Remove
the EPROM, then refit the same one. Check that
the EPROM is turned the right way and that all
its leg connectors enter the holder correctly.
Restart the machine.

Error code 12E returns Machine normal

Replace the EPROM. Check that the new one
has the correct program version. Restart
machine.

Error code 12E returns Machine normal

12E

The program control unit
cannot read the program
EPROM.

Error codes which may arise on the control panel display

2316

The marking
on the
EPROM
must be to
the left.

EPROM

Faulty program control unit
PCB. Replace PCB. The old
EPROM can probably be
reused.

Old EPROM was faulty.

Temporary loss of contact or
EPROM fitted incorrectly.

Transient fault. No action
required.

Cause/Action

Error code/symptoms

Fault-finding

70

Trouble shooting

Turn the machine’s wall switch off and on again.
Start a program.

Error code returns No error code

Check wiring from X75 on program control unit
PCB to X301 on motor control unit. Use an
ohmmeter to check that the four conductors are
sound as follows:

X75: X301:

1-4
2-3
3-2
4-1

Measure also between the four connections in
X75 to eliminate possibility of short-circuits
between two conductors.

Wiring sound Wiring faulty

Check input voltage (120/230 V) to the motor
control unit on contact X 311 (measure on rear
of PCB).

Wrong voltage Voltage correct

Replace motor control
unit.

Malfunction Function
remains normal

Check voltage (120/230 V) across fuses F21 ­F22.

Wrong voltage Voltage correct

13E

Program control unit receiving
no response from the motor
control unit.

Error codes which may arise on the control panel display

X75

X311

2316 3333

F22 F21

3332

Error code/symptoms

Fault-finding

X301

Check wiring and replace if
necessary.

Transient fault. No action
required.

Cause/Action

Coil L1 faulty. Replace coil.

Input voltage to machine
incorrect.

Fault in motor control unit
communications circuits.

Probable fault in program
control unit PCB
communications circuits. Refit
the original motor control unit
and replace the program
control unit PCB.

71

Trouble shooting

When START is pressed wash programs will
run, but the water level will not be optimally
adjusted.

Turn the machine’s wall switch off and on again.
Start a program.

Error code returns No error code

14E

Level system not tempera­ture-calibrated

Error codes which may arise on the control panel display

Transient fault. No action
required.

Replace program control unit
PCB.

Cause/Action

Error code/symptoms

Fault-finding

72

Trouble shooting

17E

Door status switch open,
even though the door lock is
locked.

Turn the machine’s wall switch off and on again.
Start a program.

Error code returns No error code

Set program control unit to service mode. The
door status switch and door lock switch will now
be indicated by the LEDs shown left. Follow this
procedure (the door can be locked using code
23 and one press of the START button):

Door Status of LEDs should be

for door lock switch: for door status
switch

open OFF OFF
closed, not locked OFF ON
closed and locked ON ON
Door lock switch LED ONDoor status switch LED

when door not locked OFF when door closed

Unscrew the door lock. Remove connection to
door lock switch "C" on door lock as illustrated.

LED ON LED goes out

Remove PCB connector X71 from program
control unit PCB.

LED ON LED goes out

Error codes which may arise on the control panel display

8

C

X71:

1

X71

L

N

Error code/symptoms

Fault-finding

2316

3390

Transient fault. No action
required.

Follow the chart for error code
02E to identify fault.

Cause/Action

LEDs
indicating:

Door lock
switch

leach if desired

Rinse 1
Rinse 2
Rinse 3

1

1

2

3

Door
status
switch

Door lock faulty. Replace
lock.

Fault in wiring between PCB
and door lock. Check wiring
and replace if necessary.

Fault in program control unit
PCB. Replace PCB.

73

Trouble shooting

20E

Interlock signal absent at
motor control unit during
program operation.

Error codes which may arise on the control panel display

Turn the machine’s wall switch off and on again.
Start a program.

Error code returns No error code

Check the voltage between terminals 1 and 2 at
PCB connector X302 on motor control unit. The
voltage should be 120/230 V when the door is
closed and locked.

Voltage wrong Voltage correct

Check the voltage between terminals 5 and 6 on
PCB connector X71 on program control unit
PCB. The voltage should be 120/230 V when the
door is closed and locked.

Voltage wrong Voltage correct

Check the input voltage to PCB connector X78
(120/230 V)

Wrong voltage Voltage correct

3333

1

X71

6

X78

2316

X302

Error code/symptoms

Fault-finding

Cause/Action

Faulty signal detection on
motor control unit. Replace
motor control unit.

Transient fault. No action
required.

Fault in wiring between
program control unit PCB and
motor control unit. Check
wiring and replace if
necessary.

Faulty wiring between
transformer T10 and program
control unit PCB. Check
wiring and replace if
necessary.

Faulty output signal on
program control unit PCB.
Replace PCB.

120/230 V

120/230 V

74

Trouble shooting

31E

Temperature of motor control
unit heat sink too high.

3333

Short­circuit

3402

Connector X3, female,
to motor control unit

1

3

9

7

2

Error codes which may arise on the control panel display

Short-circuit

Error code/symptoms

Fault-finding

Cause/Action

This error code can occur if the ambient
temperature has been extremely high. If so,
lower the temperature, e.g. by opening a
window.

Turn off the machine’s wall switch. Wait at least
10 minutes for the heat sink to cool, then switch
on the machine power supply again. Check that
the drum and motor rotate smoothly.

Drum/motor OK Drum/motor not rotating

smoothly

Start the service program. Run the motor on low
wash speed, anticlockwise (code 25) and
clockwise (code 26). Check for any abnormal
noise from drum/motor.

Drum/motor OK Noise from drum/motor

Run the motor at increasing speeds (high wash
speed code 27-28, distribution speed code 29,
extraction code 31-34). If no error code arises,
finally run motor for at least 10 minutes on its
highest extraction speed (code 33).

Error code returns No error code

Turn off the machine’s wall switch and wait 10
minutes. Disconnect connector X3 by motor.
Short-circuit X3:7 and 9 as illustrated (to
simulate motor thermal cut-out). Switch on
machine power supply, start service program
and simulate extraction with code 33 for at least
10 minutes.

Error code returns No error code

Turn off the machine’s wall switch and wait 10
minutes. Disconnect connector X312 on motor
control unit. Short-circuit X312:3 and 4 as
illustrated. Switch on machine power supply,
start service program and simulate extraction
with code 33.

Error code returns No error code

X312

Internal fault in motor control
unit. Replace motor control
unit.

Fault in wiring between motor
control unit and motor. Check
wiring and replace it if
necessary.

Internal fault in motor causing
excessively high currents in
motor control unit. Replace
motor.

Transient fault. No action
required.

Bearing failure in drum or
motor or objects between
inner and outer drum.
Investigate and remedy.

75

Trouble shooting

1

3

9

7

2

Turn off the machine’s wall switch. Check that
the drum and motor rotate smoothly.

Drum/motor OK Drum/motor not rotating

smoothly

Wait at least 10 minutes to let motor cool, then
switch on machine power supply. Start a pro­gram. Does the error code recur immediately?

Not immediately Error code immediately

Turn off the machine’s
wall switch. Disconnect
connector X3 by motor.
Use an ohmmeter to
check between X3:7 - 9
on the fixed half of the
connector (motor side).

Circuit closed Circuit

open

Reconnect X3.
Disconnect connector
X312 and use an ohmme­ter on the part of the
connector with wiring to
the motor to check
between X312:3 - 4.

Circuit open Circuit

closed

Start the service program. Run the motor on low
wash speed, anticlockwise (code 25) and
clockwise (code 26). Check for any abnormal
noise from drum/motor.

Drum/motor OK Noise from drum/motor

Run the motor at increasing speeds (high wash
speed code 27-28, distribution speed code 29,
extraction code 31-34). If no error code arises,
finally run motor for at least 10 minutes on its
highest extraction speed (code 33).

Error code returns No error code

Check the wiring from X312 on motor control unit
to X3 by motor. Use an ohmmeter to check five
conductors as follows:

X312: 3 4 6 7 8
X3: 7 9 1 2 3
Also check between the five conductors to

eliminate possibility of shorts between any two.

Wiring OK Wiring faulty

Error codes which may arise on the control panel display

32E

Thermal protection for motor
has cut out.

Connector X3, male, to
motor control unit

Connector X312, wiring
to motor

1

8

1

8

1

3

9

7

2

Connector X3, wiring to
motor control unit.

Connector X312, wiring
to motor

3401
3403

Check with ohmme­ter

Check with ohmmeter

Check the wiring and replace
it if necessary.

Bearing failure in drum or
motor. Investigate and
remedy.

Fault in wiring between motor
control unit and motor. Check
the wiring and replace it if
necessary.

Internal fault in motor control
unit detection of thermal
cutout protection. Replace
motor control unit.

Failure in motor thermal
cutout. Replace motor.

Cause/Action

Error code/symptoms

Fault-finding

Bearing failure in drum or
motor or objects between
inner and outer drum.
Investigate and remedy.

Transient fault. No action
required.

Internal fault in motor causing
it to overheat. Replace motor.

3403

3402

76

Trouble shooting

Turn the machine’s wall switch off and on again.
Start a program.

Error code returns No error code

Check voltage between terminals 1 and 2 in
PBC connector X302 on motor control unit. The
voltage should be 120/230 V when door is
closed and locked.

Voltage wrong Voltage correct

Check voltage between terminals 5 and 6 on
PCB connector X71 on program control unit
PCB. The voltage should be 120/230 V when the
door is closed and locked.

Voltage wrong Voltage correct

Error codes which may arise on the control panel display

Error code/symptoms

Fault-finding

33E

Motor control unit receiving
start command from program
control unit without first
receiving lock acknowled­gement signal. Motor control
unit receiving circuitry for lock
acknowledgement signal is
not faulty.

1

X71

6

X78

2316

3333

X302

Transient fault. No action
required.

Faulty wiring between
program control unit PCB and
motor control unit. Check
wiring and replace if
necessary.

Faulty signal detection on
motor control unit. Replace
motor control unit.

Cause/Action

Faulty output signal on
program control unit PCB.
Replace PCB.

120/230 V

120/230 V

77

Trouble shooting

Turn the machine’s wall switch off and on again.
Start a program.

Error code returns No error code

Disconnect connector X3 by motor and use an
ohmmeter to check the motor windings. Check
between 1 - 2, 2 - 3 and 1 - 3. Correct reading:

2.9 Ω.
Resistances correct Any resistance wrong

Disconnect connectors X312 by motor control
unit and X3 by motor. Check wiring by using
ohmmeter to measure the three conductors as
follows:

X312: X3:

6-1
7-2
8-3

Also check between the three conductors to
eliminate shorts between any two.

Wiring OK Wiring faulty

35E

Motor control unit indicating
short-circuit between outputs
for motor windings.

Error codes which may arise on the control panel display

Connector X3, male, to
motor control unit

3402

1

3

9

7

2

1

8

1

3

9

7

2

Connector X3, wiring to
motor control unit.

Connector X312, wiring
to motor

3401
3403

Error code/symptoms

Fault-finding

Transient fault. No action
required.

Check the wiring and replace
if necessary.

Fault in motor control unit
output stage. Replace motor
control unit.

Replace motor.

Cause/Action

78

Trouble shooting

36E

Motor control unit indicates
fault in receiving circuitry for
lock acknowledgement signal.

Error codes which may arise on the control panel display

Turn the machine’s wall switch off and on again.
Start a program.

Error code returns No error code

Transient fault. No action
required.

Fault in motor control unit.
Replace unit.

Error code/symptoms

Fault-finding

Cause/Action

79

Trouble shooting

Turn the machine’s wall switch off and on again.
Start a program.

Error code returns No error code

Check the motor control unit input voltage
(120/230 V) at connector X311.

Voltage too low Voltage correct

Check input voltage at machine connection
terminal X1.

Voltage too low Voltage correct

37E

Motor control unit indicating
DC voltage level too low.

Error codes which may arise on the control panel display

1

8

3333

Error code/symptoms

Fault-finding

X311

Transient fault. No action
required.

Fault in motor control unit.
Replace unit.

Fault in wiring, in interference
suppression circuits LC1 or
L1.

Investigate cause of fault in
power supply beyond the
machine.

Cause/Action

80

Trouble shooting

Turn the machine’s wall switch off and on again.
Start a program.

Error code returns No error code

Check the motor control unit input voltage
(120/230 V) at connector X311.

Voltage too high. Voltage OK.

38E

Motor control unit indicating
DC voltage level too high.

Error codes which may arise on the control panel display

Transient fault. No action
required.

Fault in motor control unit.
Replace unit.

1

8

Investigate cause of fault in
power supply beyond the
machine.

3333

Error code/symptoms

Fault-finding Cause/Action

X311

81

Trouble shooting

Turn the machine’s wall switch off and on again.
Fault persists. Machine working

Check fuses F11, F12, F21 and F22.

Fuses sound Fuse fault

Check that the input voltages to the PCB are
correct. Measure on PCB connector X72
between the following inputs:

X72:1 - 2 ca 1,75 V ~
X72:2 - 3 ca 1,75 V ~
X72:4 - 5 ca 14,5 V ~
X72:6 - 7 ca 13,5 V ~
An incorrect voltage Voltages correct

Check the three glass­tube fuses on the PCB.
Rating: 1 A/250 V.

OK Fuse fault

Remove connector X172 on transformer T10.
Measure the voltages between the following
outputs on the transformer board.

5 - 6 ca 1,75 V ~
6 - 7 ca 1,75 V ~
3 - 4 ca 14,5 V ~
1 - 2 ca 13,5 V ~

Voltages correct An incorrect voltage

On T10 check the input
voltage at connector X178
(120/230 V) and that the
strap is correctly located
and in contact with the
circuit board.

OK A fault

Machine completely ”dead”.
Display blank.

F12 F22 F11 F21

3332

1

7

X72

2316

F2, F3
Display

2316

3348

X172

1
7

Strap

PCB transformer T10

Error code/symptoms

Fault-finding

F1
Electronics

Transient fault. No action
required.

Change fuse(s) and check
functioning.

Change fuse(s) and check
functioning.

Replace program control unit
PCB.

Fault in wiring between
transformer and circuit board.
Check wiring and replace if
necessary.

Replace transformer T10.

Voltage fault: investigate
cause in power supply
beyond machine.

Cause/Action

X178

82

Trouble shooting

Display blank, but machine is
working otherwise.

Turn the machine’s wall switch off and on again.
Fault persists. Machine working

Check glass-tube fuses F2 and F3 on program
control unit PCB. Rating: 1 A/250 V.

Fuses sound Fuse fault

Check that input voltages to PCB are correct. At
connector X72, measure between the following
inputs:

X72:1 - 2 ca 1,75 V ~
X72:2 - 3 ca 1,75 V ~
X72:6 - 7 ca 13,5 V ~
An incorrect voltage Voltages correct

Remove connector X172 on transformer T10.
Measure the voltages between the following
outputs on the transformer board.

5 - 6 ca 1,75 V ~
6 - 7 ca 1,75 V ~
1 - 2 ca 13,5 V ~

Voltages correct An incorrect voltage

F2, F3
Display

2316

1

7

X72

2316

3348

X172

1
7

PCB transformer T10

Transient fault. No action
required.

Change fuse(s) and check
functioning.

Fault in wiring between
transformer and circuit board.
Check wiring and replace if
necessary.

Replace transformer T10.

Program control unit PCB
faulty. Replace PCB.

Cause/Action

Error code/symptoms

Fault-finding

83

0050

Maintenance

Preventive maintenance has been reduced to a
minimum by the careful design of reliable compo­nents and material.

However, the following measures should be
taken at regular intervals and in proportion to the
hours of service.

Daily

• Check the door lock and interlock before
starting operations.

• Start the machine and check that the door
remains locked while the machine is
operating. Use the Rapid Advance function to
step the program to the Stop position and
check that the door stays locked until 30
seconds after the program is completed.

• Clean the door seal and remove powder
residue. Check that the door does not leak.

• Clean the detergent compartments and wipe
down the machine with a damp cloth.

• Check that the drain valve does not leak, and
that it opens properly.

Weekly

• Remove lint or fluff remnants from the drain
opening, joints in drain pipes, etc.

Every third month

• Check for leaks in valves, hoses and
connections.

• Check that the V-belts between the motor and
pulley is undamaged and correctly tensioned.

Make certain that all electrical power to
the machine is shut off before removing
top or rear panels.

Maintenance

Fig.

88

88