Electrolux SM 554 Service manual

Service Manual
FLE120 – FLE220
471 1553-11
Summary
Serviceinstructions
Machine description – safety rules
1
Data
2
Description of principal components
3
Programmes
4
Carde programming
5
Periodic maintenance
11
Operational sequences – trouble shooting
12
Automatic unit
21
Voltage control
22
Timer
23
Reverser
24
Contactor
25
Level control
26
Thermostat
27
Unbalance cutout
28
Door & safety locking device
Included
units and
Motor – drive unit
components
29
Speed guard
31
Motor brake
32
Motor protector
33
Inlet valve, water
34
Inlet valve, steam
35
Inlet valve, air
36
Inlet vavle, gas
37
Drain valve
38
Detergent compartment
39
Heating
40
Coin meter
41
Drums with bearing
42
Frame
43
30
44
Automatic bearing lubrication system
45
Pressure switch
46
Gas system
47
Heat pump
48
Time relay
49
Options
50
Service
Manual
1. Machine description
1
The machines referred to in this book have drum volumes of 120 and
220 litres and are high speed spin washing machines with flexible
programmes. They are intended for installation in hotels, laundries,
industry, hospitals, small institutions etc.
The machines differ in size and capacity.
The machines are free-swinging, ie, the drum is moveable and spring
suspended in relation to the frame. This minimises vibrations
transferred to the frame thus simplifying installation, as no concrete
base is required.
The drum rotates at distribution speed thus distributing the washing
before the spin. This also reduces vibration caused by imbalande.
The distribution speed and the drain provide effective water removal.
The high speed spin gives a G factor of approximately 300, providing
very efficient water removal during the spin.
The washing programs are programmed by means of programmable
cards.
The machines are supplied in accordance with the customer's
specifications, i.e. for heating by electricity, steam, gas or without
heating. Standard conversion kits are available to convert electrical
heating to steam heating.
The machines are also available in different water connection options
with cold, hot and cold hard water.
9406
1
1
1. Machine description
Service
Manual
Safety provisions
• The machine is designed for water washing only.
• The machine must not be used by children.
• Installation and servicing must be carried out by qualified personnel.
• The machine door safety locking device should be in working order and
must not be by-passed under any circumstances.
• All leakage in the system, such as a worn door seal, must be rectified
immediately.
• The personnel concerned must study the relevant manuals before
undertaking repairs or service.
• The exterior of the machine must not be sprayed with water.
2
9406
Service
Manual
2
2. Data
FLE/FLE MP
120 l
220 l
Dry weight capacity
for filling factor 1:13
for filling factor 1:10
9.0 kg
12 kg
17 kg
22 kg
Drum volume
diameter
depth
120 l
620 mm
412 mm
220 l
750 mm
500 mm
44
70
425
850
Drum speed
wash
distribution
extraction, low
extraction, high
48
78
475
950
G-faktor
wash
distribution
extraction, low
extraction, high
0,8
2,1
75
310
Dimensions
width
depth
height
r/m
r/m
r/m
r/m
0,8
2,0
75
300
870 mm
900 mm
1330 mm
1000 mm
1080 mm
1460 mm
300 mm
500 mm
300 mm
500 mm
net
gross, crate packed
gross, box packed
302 kg
318 kg
385 kg
554 kg
583 kg
644 kg
crate packed
box packed
1,32 m3
1,95 m3
1,45 m3
2,10 m3
3,3 ±1,1 kN
6,0±2,0 kN
16 Hz
14 Hz
0,59/0.60 kW
0,68/0,80 kW
2,30/2,90 kW
0,95/1,10 kW
1,10/1,20 kW
4,20/4,10 kW
Recommended service space
side
rear
Weight
r/m
r/m
r/m
r/m
Transport volume
Max floor load during extraction
Frequency (dynamic load)
Motors 3AC 50/60 Hz (power rating)
input power
wash speed
distribution speed
extraction speed
Water walves
connection
rec. water pressure
pressure limits
capacity at 300 kPa
Drain valve
conn. outside diameter
capacity
Steam valve
connection
rec. steam pressure
pressure limits
9406
DN 20 3/4
200-600
40-1000
27
"
kPa
kPa
l/min
75 mm
170 l/min
DN15 1/2 "
300-600 kPa
50-800 kPa
DN 20 3/4
200-600
40-1000
100
"
kPa
kPa
l/min
75 mm
180 l/min
DN15 1/2 "
300-600 kPa
50-800 kPa
1
2
Voltage
Service
Manual
2. Data
Element
output
kW
Total
output
kW
Fuse
Connection cable
A
Area mm2
Electric heating, 120 litres
220 V, 3AC 50 Hz
380 V, 3NAC 50 Hz
415 - 440 V, 3NAC 50 Hz
208 - 240 V, 3AC 60 Hz
12
12
12
12
12,6
12,6
12,6
12,6
35
25
20
35
4x6
5x4
5 x 2,5
4x6
Electric heating, 220 litres
220 V, 3AC 50 Hz
380 V, 3NAC 50 Hz
415 - 440 V, 3NAC 50 Hz
208 - 240 V, 3AC 60 Hz
15
15
15
15
16,0
16,0
16,0
16,1
50
35
25
50
4 x 10
5x6
5x4
4 x 10
2,3
2,3
2,9
10
10
10
4 x 1,5
5 x 1,5
4 x 1,5
16
3 x 2,5
16
10
16
4 x 1,5
5 x 1,5
4 x 1,5
Steam heating, 120 litres
220 V, 3AC 50 Hz
380 - 440 V, 3NAC 50 Hz
208 - 240 V, 3AC 60 Hz
Steam heating 220 FC 1-phase
Steam heating, 220 litres
220 V, 3AC 50 Hz
380 - 440 V, 3NAC 50 Hz
208 - 240 V, 3AC 60 Hz
2
4,2
4,2
4,2
9406
Service
Manual
2
2. Data
FLE MP FC (machine with frequency control)
120 l
220 l
Dry weight capacity
for filling factor 1:13
for filling factor 1:10
9.0 kg
12 kg
17 kg
22 kg
Drum volume
diameter
depth
120 l
620 mm
412 mm
220 l
750 mm
500 mm
Drum speed
wash, normal
wash, low
distribution
extraction, high
48
24
78
340-510
590-950
G-factor
wash
extraction, low
extraction, high
0,8
40-90
120-310
Dimensions
width
depth
height
extraction, low
44
24
70
300 - 460
540 - 850
r/m
r/m
r/m
r/m
r/m
0,8
40 - 90
120 - 300
870 mm
900 mm
1330 mm
1000 mm
1080 mm
1460 mm
300 mm
500 mm
300 mm
500 mm
net
gross, crate packed
gross, box packed
302 kg
318 kg
385 kg
554 kg
583 kg
644 kg
crate packed
box packed
1,32 m3
1,95 m3
1,45 m3
2,10 m3
3,3 ±1,1 kN
6,0±2,0 kN
16 Hz
14 Hz
Recommended service space
side
rear
Weight
r/m
r/m
r/m
r/m
r/m
Transport volume
Max floor load during extraction
Frequency (dynamic load)
Water valves
connection
rec. water pressure
pressure limits
Drain valve
conn. outside diameter
capacity
Steam valve
connection
rec. steam pressure
pressure limits
9406
DN 20 3/4 "
200-600 kPa
40-1000 kPa
75 mm
170 l/min
DN15 1/2 "
300-600 kPa
50-800 kPa
DN 20 3/4 "
200-600 kPa
40-1000 kPa
75 mm
180 l/min
DN15 1/2 "
300-600 kPa
50-800 kPa
3
Service
Manual
3. Description of principal components
3
The machine is a free-swinging model i.e. the outer drum and motor
bridge and suspended in the machine chassis via a spring
suspension with a strong spring in each corner of the machine. Each
spring has a shock absorber which dampens the movement of the
machine.
The wash drum or inner drum is driven by two motors via a V-belt:
one motor for washing and distribution speed and one for spin speed.
The inner drum is mounted in the outer drum with two heavy duty
bearings at the back plate and is sealed with two V-rings.
The motors are suspended underneath on a motor support with a belt
tensioning device. The motors are mechanically coupled to each
other with V-belts. During wash and distribution speed the spin motor
transmits power to the drum.
The water inlet and drain are both situated under the outer drum. This
improves the flow during filling and prevents water vapour from
entering the detergent compartment.
The robust square door is locked with a handle which is interlocked
by a safety locking device when the machine is running.
The operating panel contains several buttons for manual control of
certain functions: restart button; indication light; thermostat and a flatcard unit through which programmed cards can control the washing
programmes.
Reverses, level switches, relays etc are placed in the automatic unit,
which is easily accessible from above and can be replaced via a
plug-in system.
The machine housing consists of hot-dip galvanised, painted steel
plates and stainless steel sheets, painted on the front and sides. It
has a stainless door (and front, on request).
Inlet valve, water
Detergent compartment
Automatic unit
Inlet valve,
steam (for
steam
heating)
Operating and
instruction panel
Door and door lock
Bearing
housing
Heating element
(for electric heating)
Motor bridge
Drum with
bearings
Washing motor
Spring suspension
Shock absorber
Drain valve
9406
Frame
Spin motor
Components parts
1
Service
Manual
4. Programmes
4
The following is a description of the test card supplied with the
machine. The basic procedure for programming (punching) cards is
described in chapter "5. Card Programming".
Function description of the card's 16 tracks
A
B
C
D
E
F
G
H
I
K
L
M
N
O
P
Q
Detergent, compartment 1
Heating, index B on the thermostat
Detergent, compartment 2
Heating, index C on the thermostat
Detergent dispensing
Heating, index D on the thermostat
Detergent dispensing
Spin
Detergent dispensing, compartment 3
Drain
Cold hard water (only certain machines)
Programme stop, buzzer yellow signal light on
High water level
Inflow valve for cold water
Cooling
Inflow valve for hot water
When connecting external metering equipment for liquid detergent,
use tracks A, C, E, G and I for pulse sending
The programme card/test card supplied with the machine is
programmed for normal soiled washing according to the following
description. In the table truncated pegs are marked "x" and remaining
pegs are marked ".".
9406
1
4
4. Programmes
Programme
stage
Track
Prewash
O "Cold water"
N "High water level"
A "Detergent 1"
B "Heat index B"
K "Drain"
0 to 6
0 to 6
0
0 till 6
7
Main wash
O "Cold water"
Q "Hot water"
C "Detergent 2"
D "Heat index D"
K "Drain"
8 to 24
8 to 24
8
8 to 24
25
Rinse 1
O "Cold water"
N "High water level"
K "Drain"
H "Spin"
26 to 31
26 to 34
32 to 34
33 to 34
Rinse 2
O "Cold water"
N "High water level"
K "Drain"
H "Spin"
35 to 40
35 to 43
41 to 43
42 till 43
Rinse 3
O "Cold water"
N "High water level"
K "Drain"
H "Spin"
44 to 49
44 to 52
50 to 52
51 to 52
Rinse 4
O "Cold water"
N "High water level"
E "Detergent 3"
K "Drain"
H "Spin"
53 to 58
53 to 69
53
59 to 70
60 to 69
End
M "Programme stop"
71
2
Service
Manual
Removed
peg
Traclks on card
A B CD E F GH I
x x . . . . . . .
x x . . . . . . .
. x . . . . . . .
. x . . . . . . .
. x . . . . . . .
. x . . . . . . .
. x . . . . . . .
. x . . . . . . .
. . . . . . . . .
. . x x . . . . .
. . . x . . . . .
. . . x . . . . .
. . . x . . . . .
. . . x . . . . .
. . . x . . . . .
. . . x . . . . .
. . . x . . . . .
. . . x . . . . .
. . . x . . . . .
. . . x . . . . .
. . . x . . . . .
. . . x . . . . .
. . . x . . . . .
. . . x . . . . .
. . . x . . . . .
. . . x . . . . .
. . . . . . . . .
. . . . . . . . .
. . . . . . . . .
. . . . . . . . .
. . . . . . . . .
. . . . . . . . .
. . . . . . . . .
. . . . . . . . .
. . . . . . . . x
. . . . . . . . x
. . . . . . . . .
. . . . . . . . .
. . . . . . . . .
. . . . . . . . .
. . . . . . . . .
. . . . . . . . .
. . . . . . . . .
. . . . . . . . x
. . . . . . . . x
. . . . . . . . .
. . . . . . . . .
. . . . . . . . .
. . . . . . . . .
. . . . . . . . .
. . . . . . . . .
. . . . . . . . .
. . . . . . . . x
. . . . . . . . x
. . . . x . . . .
. . . . . . . . .
. . . . . . . . .
. . . . . . . . .
. . . . . . . . .
. . . . . . . . .
. . . . . . . . .
. . . . . . . . x
. . . . . . . . x
. . . . . . . . x
. . . . . . . . x
. . . . . . . . x
. . . . . . . . x
. . . . . . . . x
. . . . . . . . x
. . . . . . . . x
. . . . . . . . x
. . . . . . . . .
. . . . . . . . .
J
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KL
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x .
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x .
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x .
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x .
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x .
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x .
x .
x .
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x .
x .
x .
x .
x .
x .
x .
x .
x .
x .
x .
x .
. .
MN O P Q
. x x . .
. x x . .
. x x . .
. x x . .
. x x . .
. x x . .
. x x . .
. x x . .
. . . . .
.
x . x
. . x . x
. . x . x
. . x . x
. . x . x
. . x . x
. . x . x
. . x . x
. . x . x
. . x . x
. . x . x
. . x . x
. . x . x
. . x . x
. . x . x
. . x . x
. . x . x
. . . . .
. x x . .
. x x . .
. x x . .
. x x . .
. x x . .
. x x . .
. x . . .
. x . . .
. x . . .
. x x . .
. x x . .
. x x . .
. x x . .
. x x . .
. x x . .
. x . . .
. x . . .
. x . . .
. x x . .
. x x . .
. x x . .
. x x . .
. x x . .
. x x . .
. x . . .
. x . . .
. x . . .
. x x . .
. x x . .
. x x . .
. x x . .
. x x . .
. x x . .
. x . . .
. x . . .
. x . . .
. x . . .
. x . . .
. x . . .
. x . . .
. x . . .
. x . . .
. x . . .
. x . . .
. . . . .
x . . . .
Peg
nr
-1
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
9406
Service
Manual
4. Programmes
4
Prewash
Prewash lasts for 4 minutes (track numbers 0 to 7). It starts with cold
water to high level, detergent dispensing compartment 1 and heating
until thermostat value selected on dial B is reached (peg number 0 in
tracks A, B, N and O removed).
The card programme is held on water fill cut until selected
temperature is reached. As the card must be punched for the entire
time advance is necessary, cams B, N and O are removed for the
running time required. The removal of these pegs during the running
time does not cause water and heating to be on continually, as these
functions are now controlled by the thermostat and level check. The
absence of a peg is required in order to initiate a function and to
advance the automatic card device. After the water level and
temperature have been reached the running time of this card is 2,5
minutes (peg 1 to 6 have been removed in cams B, N and O). Cams
A, B, N and O have been removed in peg -1 as a safety measure to
ensure the washing is done correctly even if the card is incorrectly
adjusted, see "4. Card Programing").
The prewash ends with emptying, Drain, for 0,5 minutes (peg 7 in
cam K removed)
Main wash
The main wash takes 9 minutes and starts with cold water inflow, hot
water detergent dispensing from compartment 2 and heating till the
value selected on thermostat dial D is reached (peg no 8 in cams C,
E, O and Q removed).
The advance of the programmed card stops at peg 8 until the water
level and temperature of thermostat D have been reached. As the
card must be punched for the whole time advance is required track D,
I and Q are removed for the appropriate time. The removal of these
pegs during the running time does not cause water and heating to be
on continually, as these functions are now controlled by the
thermostat and level check. The absence of a peg is required in order
to initiate a function and to advance the automatic card device. When
the water level and temperature have been reached the running time
of this card is 7,5 minutes (peg 8 to 24 have been removed in tracks
D, O and Q).
The main wash ends with emptying, Drain, for 0,5 minutes (peg 25 in
track K removed).
9406
3
4
4. Programmes
Service
Manual
Rinses 1 to 3
Rinses 1-3 last for 4,5 minutes and are identical. Rinse 1 is described
here. The rinse starts with cold water inflow until high water level is
reached (peg 26 in track N and O removed).
The automatic card device stops advancing the programmed card at
peg 26 until the water level is reached. As the card must be punched
for the entire time advance is necessary. Tracks N and O are
removed for the required running time. The removal of these pegs
during the running time does not cause water to be flushing
continually, as this function is now controlled by the level check. The
absence of a peg is required in order to initiate a function and to
advance the automatic card device. When the water level and
temperature have been reached the running time of this card is 2,5
minutes peg 26 to 31 have been removed in tracks N and O).
The rinse ends with Drain for 1,5 minutes with Spin for the last half
minute peg 41 to 43 in tracks K and N peg 42 to 43 in track H
removed). Track K should always be progarmmed parallel with cam
H so that the water can drain, but as spinning should not take place
when the drum is filled with water, cam K (Drain) is programmed one
peg earlier than the spin, allowing the water to empty before the spin
starts.
Rinse 4
Rinse 4 lasts for 9 minutes and starts with inflow of cold water to high
level and detergent dispensing (fabric conditioner) from compartment
3 peg 53 in tracks E, N and O removed).
The advance of the programmed card stops at peg 53 until the water
level has been reached. As the card must be punched for the whole
time advance is required, tracks N and O are punched for the
appropriate time. The removal of these pegs during the running time
does not cause the water to flush continually, as this function is now
controlled by the level check. The absence of a journal is required in
order to initiate a function and to advance the automatic card device.
When the water level has been reached the running time of this card
is 3 minutes (peg 54 to 58 have been removed in tracks N and O).
Rinse 4 ends with Drain for 6 minutes peg 59 to 70 in track K
removed). When the drain has run for 0,5 minutes the spin starts and
lasts for 5 minutes peg 60 to 69 in track H removed). The first minute
of spin is slow and the remaining 4 minutes high speed. The spin
ends with distribution speed for 0,5 minutes. This is achieved through
clipping track K one after the last journal of the spin.
Completion
Completion of the washing process can be achieved through
punching peg 71 in track M (Programme Stop). A programme stop is
indicated by a buzzer and the yellow signal lamp in the restart button
lights up.
4
9406
Service
Manual
5
5. Card Programming
Machines with the card programming facility have an
automatic card device which reads a programmed
card. The machines are intended for cards with 12, 16
or 24 tracks. Each track consists of a number of pegs
which actuate the automatic card device's inbuilt
sensors thus controlling the different stages of the
washing process. The card is driven by mechanically
transmitted step pulses from the timer motor with a
speed of one step each 30 seconds, which is the
equivalent of one peg on the card. The cards are
available with 80 and 120 rows. These respectively
give 40 and 60 minutes effective running time.
Each track has its own function which is activated by
removing one or more pegs depending on the length
of time the function is required. For identification
purposes the tracks are marked with letters.
To locate the timing of the function changes, every
5th peg is numbered on one side with two different
number sequences; one marks the peg numbers and
one marks the peg numbers in relation to the front
panel of the programme unit. The machine is
delivered with a programmed card and a punch
device for punching the cards. The card is
programmed for normal wash. This can be used for
test runs and to wash normal soiled washing.
Four factors must be taken into account when
programming (punching) a card:
1. Type of soiling
2. Degree of soiling
4. Previous experience
The following points should be noted during
programming:
Rows
3. Textiles
Tracks
• All tracks except machine stop have pegs in
position minus one. A good safety measure is to
punch position minus one on those tracks which
have position 0 punched. This allows the machine
to wash correctly even if the card is incorrectly
adjusted.
• Each peg on the programme card is the equivalent
of 30 seconds.
9406
1
5
5. Card Programming
Service
Manual
• During water inlet the timer will hold. It will restart
when the level switch opens to indicate that the
water level in the drum has been reached.
• Hot and/or cold water may be programmed "Inlet".
• Use the facility to reduce the heating time by
programming hot water or mixed cold and hot
water filling.
• During "Heating" the timer will hold. It will restart
when the thermostat opens to indicate that the
selected temperature has been reached.
• By cutting track detergent must NOT be dispensed
during heating.
• Cold water enters the machine during
programming. "Cooling". This provides a cooling of
3-4°/minute.
• The last punched peg in a sub routine determines
where the first one of the next sub routine should
be punched. For example, if the first rinse ends
with a spin punch in peg 38 the second rinse starts
with cold water filling peg 39.
• If there are no punched pegs, the advane of the
automatic card device stops. This means a row
cannot be left unpunched during a programme, the
programme must be a complete sequence with
information about the washing process.
• Programming of "Stop" can be made serveral time
during the same washing programme. When the
programme reaches the stop the buzzer sounds
and the machine stops. It is then possible to carry
out required action such as detergent dispensing.
When restart is required press the restart button
and the washing process continues in accordance
with the programme.
PLEASE NOTE
Ensure that the programme card does not come in
contact with detergent or any other substance
which could cause interference in the programme.
Detergent on the card may coat the microswitches
and can cause them to fail or may deposit a layer of
detergent on the advance reels thus increasing their
diameter. As a result, they will press the programme
card harder against the micro switches which in turn
may interpret this as the presence of a peg even
when the peg has been removed. The required
function may start later or may be completely absent.
2
9406
Service
Manual
11. Periodic maintenance
11
The following steps should be taken to maintain
optimum safety and performance of the machine and
to prevent breakdowns.
The timing should be adapted to the usage of the
machine.
Daily
• Chek door and safety locking device.
– Close door, start machine and check door
cannot be opened.
– Stop machine and check that door cannot be
opened until 20-30 seconds have elapsed after
programme ends.
– Open door and raise hadle to closed position.
Check machine cannot be started. If it can,
there is a fault on the hinge side switch which
must be dealt with immediately.
– Check that door does not leak.
Clean door seal.
• Check that drain valve and inlet valve does not
leak wash.
– Leak can be detected by the machine filling with
water during washing or water from the drain
valve.
Every three months
• Switch off main switch.
• Remove rear and front protective plates and top
panel. Do not forget screws for detergent
compartment. Check in the detergent compartment
that there is no leak between the compartment and
the top panel.
• Check that all inner pipe connections are not
leaking.
• Check door does not leak.
• Check V-belts; tighten or replace as required, refer
to section 30. Motor – drive unit.
• Check spring suspension and shock absorbers.
• Check heater elements if heating time unusually
long. See section 40. Heating elements.
• If water is very hard, check the elements for "lime
scale". Where necessary, treat with descaling
agent. Use descaling agent in accordance with
manufacturer's instructions.
• Check the spin cutout with the machine unloaded,
the centre of the bracket should be about 5 cm
above the pin.
See section 28. Spin cutout.
9406
1
Service
Manual
12. Function Sequences
17
9108
1
Type Edition Page
12
General, From machine No. 91/5501- (120 l machine)
91/5875- (220 l machine)
To facilitate in faults tracing in the electrical system, the circuit
diagram is broken down into a number of sequences, as
follows:
• Power supply and start ........................................................... 2
• Restart .................................................................................... 4
• Door lock ................................................................................ 6
• Water filling ............................................................................. 8
• Detergent supply .................................................................. 10
• Heating ................................................................................. 12
• Wash speed .......................................................................... 14
• Cool-down ............................................................................ 16
• Distribution speed ................................................................. 18
• Drain ..................................................................................... 20
• Extraction .............................................................................. 22
• Out-of-balance ...................................................................... 24
• Programmer advance ........................................................... 26
D1 Delay unit
B1 Level control
K63 Time relay (drain)
X9 Inlet
Reverser
K62 Time relay D1
K3 Relay (distribution)
K2 Relay (wash)
K31 Relay (drain)
K52 Relay (start)
K53 Relay (out-of-balance)
X8 Door
X20/X14 Power
K54 Realy (start)
X5 Extraction
B40 Buzzer
X2 Heating
1695
X3 Motor
X31 Speed control
K61 Time relay (extraction)
K9 Relay (low extraction)
X19 External supply
S9 Out-of-balance switch
K10 Relay (high extraction)
K11 Relay (high extraction)
1693
S2 Emergency stop
1694
17 9108 2
12 Type
Edition Page
12. Function Sequences
Power supply and start
The door must be closed (closing switch S3 (6)) and locked (switch S4 (8))
before power is supplied to machine. Turning programmer knob from 0 to I
closes switch S30 (7). Point A is energised and the machine now starts if
a programmed card is inserted in the programmer.
The machine is normally switched ON and OFF using switch S1 (3) (12).
This means that relay K54 (11) is kept activated by (K54:10-6 (10) is
closed) even when the machine is off. When the emergency stop button
S2 (2) (13) is depressed, relay K54 is released. To restart the machine, you
must first reset the emergency stop button and then press S32 Restart (9).
This activates K54.
Service
Manual
Service
Manual
12. Function Sequences
17
9108
3
Type Edition Page
12
50
L2
(1) F1 Fuse
F1
51
X20:6
22
S2
(2) S2 Emergency stop
21
(3) S1 ON/OFF switch
S1
53
52
1
5
K54
(4) K54 Relay, start
218
9
318
X3:7
X24:7
(5) F2 Overheat protection
F2
319
X24:9
219
X3:9
X8:1
3
S3
(6) S3 Switch, door
4
X8:2
54
1
S30
(7) S30 Switch, programmer
55
4
203
X8:5
(8) S4 Switch, door lock
204
S4
62
X8:6
52
C
B
A
B
C : Power supply to
other function sequences
A
S32
(9) S32 Switch, restart
72
2
10
K54
(10) K54 Relay, start
6
A1
K54
(11) K54 Relay coil, start
A2
D : Power supply to other function
sequences
3
4
D
2
S1
(12) S1 ON/OFF switch
12
S2
(13) S2 Emergency stop
2
11
X20:4
N
1685
17 9108 4
12 Type
Edition Page
12. Function Sequences
Restart
Use row M, stop (3) on the program card, to stop the program sequence
either to dispense detergent or when the wash is done.
When row M (3) has been programmed, the programmer switch changes
from position 2-3 to 1-3. This supplies power to buzzer B40 (8) and lamp
H2 (7), and at the same time disconnects the washing functions and
programmer motor (although the drain remains closed).
Relay coil K52 (6) is energised by pressing switch S32 (4) and is locked via
K52:13-14 (5). K52:43-44 (2) closes, re-energising the wash functions and
the wash cycle continues.
When the program card has been fed so far that row M no longer is
programmed (switch M then switches to position 2-3), the lock releases on
K52 (6).
Service
Manual
12. Function Sequences
B
17
9108
5
Type Edition Page
12
B : Power supply: see ''Power
supply and start '' diagram
(1) S4 Switch, door lock
55
203
X8:5
204
S4
X8:6
43
(2) K52 Relay, restart
62
K52
63
44
3
(3) Programmer, row M, stop
M
1
2
power to
wash fuctions
64
S32
1
(4) S32 Switch, restart
13
32
A1
31
A2
K52
K52
65
14
K52
(5) K52 Relay, restart
(6) K52 Relay, restart
4
H2
66
Service
Manual
(7) H2 Lamp, restart
B40
(8) B40 Buzzer
D
D : Power supply: see ''Power
supply and start'' diagram
1686
17 9108 6
12 Type
Edition Page
12. Function Sequences
Door lock
When the door has been locked with the handle the microswitch S3 (6) is
activated in the locking unit. Turning programmer knob to I closes switch
S30 (7), delay unit D1 (11) is receiving power and door lock coil Y80 (12)
locks the door. Switch S4 (8) then closes, so that the machine can start.
To prevent the door being opened immediately after a extraction (roll-out
time may be 2-3 minutes), while at the same time limiting the delay time
once washing has finished to approx. 35 seconds, the delay unit is fitted
with a time relay and works as follows:
• Time relay motor K62 (11) is energised even if machine switch S1 (3)
(13) is at OFF. This means the time relay is normally in position 12-13
from the start and when the machine runs at wash or distribution speed.
In this position, one of the capacitors in the delay unit (11) is cut out, at
the same time as the 39 kΩ resistor is short circuit. The door can now
be opened approx. 35 seconds after a power failure or when the
programmer knob is turned to 0 and breaking S30 (7).
• Extraction activates relay K9 or K10 and the power to time relay motor
K62 is cut by K9:51-52 (9) or K10:51-52 (10). The time relay contact
switches to position 11-12, and the delay circuit now keeps the door
closed about 3-3.5 minutes at a power failure or the programmer knob is
turned to 0. After extraction, time relay K62 is re-energised. At the end
of the time set on the relay (2 minutes for 120 litre machines and 3
minutes for 220 litre machines), the time relay contact resets to position
12-13.
Service
Manual
Service
Manual
12. Function Sequences
17
9108
7
Type Edition Page
12
50
L2
(1) F1 Fuse
F1
51
X20:6
22
(2) S2 Emergency stop
S2
21
S1
(3) S1 ON/OFF switch
53
1
5
K54
(4) K54 Relay, start
218
9
318
X3:7
X24:7
(5) F2 Overheat protection,
wash and distribution motor
219
319
F2
X24:9
X3:9
X8:1
3
(6) S3 Switch, door
S3
4
54
X8:2
1
(7) S30 Switch, programmer
S30
203
52
55
4
X8:5
(8) S4 Switch, door lock
S4
204
X5:11
51
K9
(9) K9 Relay, low extraction
140
52
Power to wash
(10) K10 Relay, high extraction
functions
52
K10
51
141
X5:12
4
2
D1
4,4 kΩ
1,5 kΩ
680 µF 680 µF
(11) D1 Delay unit
39 kΩ
1 kΩ
K62
12
M
6
7
X8:3
13
202
11
13
1
X28:2
Y80
X8:4
S1
X28:1
(13) S1 ON/OFF switch
12
(14) S2 Emergency stop
S2
11
2
3
(12) Y80 Door lock coil
201
2
X20:4
N
1682
17 9108 8
12 Type
Edition Page
12. Function Sequences
Water filling
The following conditions must be met for water valves Y14 (12), Y24 (13) or
Y34 (14) to be energised:
• Row M, stop (1) must not be programmed
• The out-of-balance switch must not have tripped (breaks K53:51-52 (2)
power supply)
• Row K, drain (3) must not be programmed
• The water level must not exceed low or high level
Level control B1 (6) has two switching contacts, 21-22 switches at low
level and 31-32 switches at high level. Which of these contacts activate
the water valves depend on whether row N, high level (5) is
programmed or not.
If the the above conditions are met, the water valves can be controlled by
programming row O, Cold water (7), row Q, Hot water (9) and Row L, Cold
hard water (11).
The water valves Y14 (12) and Y24 (13) can also be controlled manually
with the switches S36
(8) and S35 (10) on the machine control panel.
Service
Manual
Service
Manual
17
12. Function Sequences
C
9108
9
Type Edition Page
12
A C : Power supply: see ''Power supply and
start'' diagram
A
3
M
1
(1) Programmer, row M, stop
63
2
52
K53
(2) Relay K53, out-of-balance
67
51
3
(3) Programmer, row K, drain
K
1
69
2
81
(4) Relay K31, drain
110
K31
82
3
(5) Programmer, row N, high level (shown in normal
position = low level)
N
1
B1
P<
B1
P<
31
33
32
87
86
2
21
(6) Level control B1, low/high
23
22
3
(7) Programmer, row O, cold water
O
1
91
1
2
2
(8) Switcher S36
90
S36
(cold water)
3
(9) Programmer, row Q, hot water
Q
1
92
2
1
2
(10) Switcher S35
X9:3
74
73
S35
(hot water)
3
L
(11) Programmer, row L, cold hard water
1
2
76
X9:4
Y14
X9:6
Y24
(12) Valve Y14, cold water (directly into the drum)
(13) Valve Y24, hot water (directly into the drum)
Y34
(14) Valve Y34, cold hard water (directly into the
drum)
4
X9:9
D
D : Power supply: see function sequence ''Power
supply and start''
1688
17 9108 10
12 Type
Edition Page
12. Function Sequences
Detergent
The machine has three built-in detergent compartments controlled by three
water valves. A total of five valves can also be controlled in an external
supply unit via connector X19. The following conditions must be met to
control the valves:
• The door must be closed and locked, and the programmer knob must be
in position I (see ”Power supply and start” sequence).
• Row M, stop (1) must not be programmed
• The out-of-balance switch must not have tripped (breaks K53:51-52 (2)
power supply)
• Row K, drain (3) must not be programmed
Once these conditions are met, the water valves can be controlled by
programming row A (4), detergent prewash, row C (6), detergent main
wash and row I (9), softener. Row E (7) and row G (8) can be used to
control another two valves in an external supply unit.
Row P (10) controls valve Y11b (14) which is used for cool-down (see
sequence '’Cool-down’').
Water valve Y11a/Y21 (12) can also be controlled manually with switch
S37
(5) on the machine control panel.
Service
Manual
Service
Manual
17
12. Function Sequences
12
A C : Power supply: see ”Power supply
and start” sequence
A
62
C
9108 11
Type Edition Page
3
M
1
(1) Programmer, row M, stop
54
63
2
52
(2) Relay K 53, out-of-balance
K53
67
51
3
K
(3) Programmer, row K, drain
1
2
69
3
(4) Programmer, row A,
detergent prewash V1
A
2
80
1
1
2
(5) Switch S37
S37
3
(6) Programmer, row C,
detergent main wash V2
C
1
2
3
(7) Programmer, row E, detergent V3
E
1
2
81
3
(8) Programmer, row G, detergent V4
G
1
83
82
, (detergent)
2
(9) Programmer, row I,
softener V5
3
84
I
1
2
X19
3
1
2
77
2
3
4
5
6
(10) Programmer, row P, cool-down
P
85
1
Y11a/
Y21
X9:5
X9:2
X9:7
(11) Valve Y11a, cold water compartment 1 /
Y21, hot water compartment 1
Y12/
Y22
(12) Valve Y12, cold water compartment 2 /Y22,
hot water compartment 2
Y13
(13) Valve Y13, cold water compartment 3
Y11b (14) Valve Y11b, cold water, cool-down
X9:9
4
X9:1
D
D : Power supply: see ”Power supply and
start” sequence
1687
17 9108 12
12 Type
Edition Page
12. Function Sequences
Heating
The following conditions must be met for relay K21/valve Y51 (11) to be
energised:
• The door must be closed and locked, and the programmer knob must be
in position I (see ”Power supply and start” sequence)
• Row M, stop (1) must not be programmed
• The out-of-balance switch must not have tripped (breaks K53:51-52 (2)
power supply)
• Row K, drain (3) must not be programmed
• The drum must be filled with water to the correct level.
Level control B1 (6) has two closing contacts, 21-23 (low water level)
and 31-33 (high water level). Which of these is active depends on
whether row N (5) is programmed or not.
If the above conditions are met, the closing contact in thermostat B11 (10)
is energised.
The thermostat has three different temperature settings, using the three
dials B, D and F. Which setting the thermostat is to follow depends on
whether row B (7), D (8) or F (9) has been programmed on the program
card.
If any of the three rows are programmed, and the water temperature is
lower than the set temperature, the closing contact 11-13 in the thermostat
switches and relay K21/valve V51 (11) is energised.
Service
Manual
Service
Manual
12. Function Sequences
17
9108 13
Type Edition Page
12
A B :Power supply: see ''Power supply and
start'' sequence
A
3
(1) Programmer, row M, stop
M
1
63
2
52
K53
(2) Relay K53, out-of-balance
67
51
3
K
(3) Programmer, row K, drain
1
69
2
81
(4) Relay K31, drain
K31
110
82
3
(5) Programmer, row N, high level
N
1
B1
P<
B1
P<
31
33
32
87
86
2
22
21
3
(7) Programmer, row B, temperature 1, red
B
2
500
88
1
3
(8) Programmer, row D, temperature 2, blue
501
D
2
1
502
3
F
(9) Programmer, row F, temperature 3
503
1
2
1
+
11
B11
(10) Thermostat B11
100
3
13
X2:1
K21/Y51
(11) Relay K21, heating (electrically heated)/
valve V51 (steam heated)
X2:2
4
2
(6) Level control B1, high/low level
23
D
D : Power supply: see ''Power supply and
start'' sequence
1689
17 9108 14
12 Type
Edition Page
12. Function Sequences
Service
Manual
Wash speed
Relay K2 connects the wash speed windings on the wash motor. The
following conditions must be met for relay coil K2 (7) to be energised:
• The door must be closed and the programmer knob must be in
position I (see ”Power supply and start” sequence)
• Row M, stop (1) must not be programmed
• The drum speed must be less than 550 rpm (120 litre) or 310rpm (220
litre). If it exceeds this, speed control B31 (2) breaks to avoid
damaging the motor.
• The drain must be closed. (K31:51-52 (3) is closed when the drain is
closed). If the drain is open, the machine will run at distribution speed.
In this case, K31:51-52 (3) breaks, cutting out the wash windings on
motor M1.
If the above conditions are met, reverser motor M22 (8) starts. Reverser
contacts 1 (5) for normal action and 2 (6) for gentle action now open and
close according to a preset schedule (see diagram below). Switch S33
(4) on the front panel governs which of the two reverser contacts controls
relay K2.
Reverser diagram
30 seconds
1 Normal wash 12-3
b
2 Fine wash 3-12
b
3 Distribution/
extraction
4 Reversing
b
a
b
5 Reversing
a
b
1350
17
12. Function Sequences
A
9108 15
Type Edition Page
12
62
A : Power supply: see ''Power supply and
start'' sequence
3
M
(1) Programmer, row M, stop
2
63
1
X31:1
1
(2) Speed control B31
B31
2
56
X31:2
52
K31
(3) Relay K31, drain
51
S33
59
58
(4) Switch S33
1
2
(gentle action)
(5) Reverser row 1
57
1
61
b
2
(6) Reverser row 2
b
A1
(7) Relay coil K2, wash
K2
A2
4
Service
Manual
D
M
M22
(8) Motor M22 Reverser
D : Power supply: see ''Power supply and
start'' sequence
1680
17 9108 16
12 Type
Edition Page
12. Function Sequences
Cool-down
The following conditions must be met for the cool-down valve Y11b (5) to
be energised:
• The door must be closed and locked, and the programmer knob must be
in position I (see ”Power supply and start” sequence)
• Row M, stop (1) must not be programmed
• The out-of-balance switch must not have tripped (breaks K53:51-52 (2)
power supply)
• Row K, drain (3) must not be programmed
If the above conditions are met, the cool-down valve Y11b (5) can be
controlled by programming row P (4).
Service
Manual
12. Function Sequences
17
9108 17
Type Edition Page
12
A : Power supply: see ''Power supply and
start'' sequence
A
3
(1) Programmer, row M, stop
M
1
63
2
52
(2) Relay K53, out-of-balance
K53
67
51
3
(3) Programmer, row K, drain
K
1
69
2
3
(4) Programmer, row P, cool-down
P
1
77
2
X9:7
Y11b
(5) Valve Y11b, cool-down
X9:9
4
Service
Manual
D
D : Power supply: see ''Power supply and
start'' sequence
1691
17 9108 18
12 Type
Edition Page
12. Function Sequences
Distribution speed
Relay K3 connects the distribution speed windings on the wash motor. The
following conditions must be met for relay coil K3 (13) to be energised:
• The door must be closed and locked and the programmer knob must be
in position I (see ”Power supply and start” sequence).
• Row M, stop (1) must not be programmed.
The machine runs at distribution speed when the drain valve, controlled by
relay K31, is open. The following conditions must be met for relay K31 (5)
to be energised:
• The out-of-balance switch must not have tripped (breaks K53:51-52
(2) power supply).
• Row K, drain (3), must be programmed.
• Row 3b (4) in the reverser must be closed (see diagram below).
This contact closes when the wash motor is running and the drum is
rotating in the same direction as at distribution speed. This prevents
unnecessary stress on the motor, belts and drum bearings when
engaging distribution speed.
When K31 energized, K31:51-52 (7) cuts the power supply to relay K2,
which de-energises the motor wash windings. K31:51-52 also cuts the
power to reverser motor M22 (8). The reverser stops, which means that
reverser contact 3b (4) remains closed until the motor is running at
distribution speed.
When K31 is energized, closes K31:43-44 (9), which means that relay coil
K3 (13) is energised and connect the motor distribution speed windings.
Reverserdiagram
30 seconds
1 Normal wash 12-3
b
2 Gentle action 3-12
b
3 Distribution/
extraction
b
4 Reversing
a
b
5 Reversing
a
b
Service
Manual
Service
Manual
12. Function Sequences
17
9108 19
Type Edition Page
12
A : Power supply: see ''Power and start''
sequence
A
3
M
1
(1) Programmer, row M, stop
2
52
(2) Relay K53, out-of-balance
K53
67
51
3
(3) Programmer, row K, drain
K
1
63
68
2
(4) Reverser, row 3
3
71
b
A1
K31
(5) Relay coil K31, drain
A2
X31:1
1
(6) Speed control B31
B31
3
2
56
X31:2
52
K31
(7) Relay K31, drain
57
51
M22
43
M
K31
(8) Motor M22, reverser
(9) Relay K31, drain
44
135
till kontaktorspole K2,
tvättvarv.
X5:6
12
(10) Relay K10, high extraction
K10
136
11
4
11
K9
(11) Relay K9, low extraction
12
130
X5:8
71
K53
(12) Relay K53, out-of-balance
K3
(13) Relay coil K3, distribution speed
112
72
A1
A2
D
D : Power supply: see ''Power supply and start''
sequence
1681
17 9108 20
12 Type
Edition Page
Service
Manual
12. Function Sequences
Drain
Relay K31 (5) controls the drain valve. The following conditions must be
met for relay K31 to be energised:
• The door must be closed and locked, and programmer knob must be in
position I (see ”Power supply and start” sequence).
• Row M, stop (1) must not be programmed.
• The out-of-balance switch must not have tripped (breaks
K53:51-52 (2) power supply).
• Row K, drain (3) must be programmed.
• Reverser, row 3b (4) must be closed.
The machine will run at distribution speed if the drain is activated. Row
3b is used to ensure that the motor windings are switched in at the right
speed. For more details, see ”Distribution speed”.
When K31 is energized, K31:71-72 (7) cuts the power supply to the drain
valve Y1 (8) and the drain valve opens.
The drain valve can also be controlled manually via switch S34
.
17
12. Function Sequences
9108 21
12
Type Edition Page
A : Power supply: see ''Power supply and
start'' sequence
A
3
M
1
(1) Programmer, row M, stop
2
52
K53
(2) Relay K53, out-of-balance
67
51
3
(3) Programmer, row K, drain
K
1
68
2
(4) Reverser, row 3b
62
3
71
b
A1
K31
(5) Relay coil K31, drain
A2
2
S34
(drain)
99
(6) Switch S34
71
(7) Relay K31, drain
K31
78
72
X9:8
X10:1
Y1
M
(8) Valve Y1, drain
X10:2
4
Service
Manual
X9:9
D
D : Power supply: see ''Power supply and
start'' sequence
1696
17 9108 22
12 Type
Edition Page
12. Function Sequences
Extraction
The section below and the diagram on the next page refer to 220 litre
machines. In 120 litre machines, there is no clutch between the
motors.
Relays K9 (13), low extraction, and K10 (14), high extraction, control the
connections to the extract motor windings. The following conditions must
be met for these relays to be energised:
• The door must be closed and locked, and the programmer knob must be
in position I (see ”Power supply and start” sequence).
• Row M, stop (1) must not be programmed.
• The out-of-balance switch must not have tripped (breaks
K53:51-52 (2) power supply).
• Row K, drain (3) must be programmed.
When row K (3) switches to position 1-3 and reverser contact 3b (8) is in
the right position (see ”Distribution speed” sequence), relay coil K31 (15) is
energised. As a result:
• The drain valve opens.
• K31:43-44 (18) closes, relay coil K3 (22) is energised and connects the
wash motor distribution speed windings.
• Relay K63 (9) is energised and after about 30 seconds closes relay
contact 12-13 (9).
If row H (5), extraction, is programmed:
• Relay coil K9 (13) is energised and connects the extract motor windings
for low extraction.
• K9:11-12 (20) cuts the power to relay K3 (22).
• When the drum speed exceeds approx. 310 rpm (220 litre models), the
speed control B31 (17) switches to position 1-3. The clutch Y70 (23)
which connects the two motors is de-energised, disconnecting the wash
motor from the extract motor.
After about 60 seconds low extraction, relay K61 (10) switches to position
12-13. As a result:
• Relay coil K9 (13) cuts out, relay coil K10 (14) is energised and
connects the extract motor high extraction windings.
• When relay coil K9 (13) is de-energised, K9:11-12 (20) closes. Since
the speed control B31 (17) contact is in position 1-3, this energises relay
coil K3 (22) and restarts the wash motor at distribution speed. This is
designed to prevent the wash motor bearings being damaged by
vibration during extraction.
Service
Manual
Service
Manual
17
12. Function Sequences
A : Power supply: se
''Power supply and start''
sequence
9108 23
12
Type Edition Page
62
A
3
(1) Programmer, row M, stop
M
1
2
X31:1
63
1
52
(2) Relay K53, out-of-balance
67
K53
B31
51
3
(3) Programmer, row K, drain
K
1
X31:3
23
43
K31
K31
24
2
96
12
(19) Relay K10
High extraction
K10
81
11
136
K53
82
(20) Relay K9
Low extraction
56
111
11
K9
11
12
B1
X5:8
13
130
12
150
(8) Reverser, row 3b
71
3
72
112
(9) Relay K63, drain
12
A1
M
K63
A2
122
K61
13
11
K3
X5:4
(22) Relay coil K3
Distribution speed
X6:8
X5:5
(23) Clutch Y70
Y70 (between wash and extract
motors)
12
M
71
151
13
(10) Relay K61,
Low/high extraction
(21) Relay K53, out-of-balance
K53
b
22
125
(11) Relay K10,
high extraction
(18) Relay coil K31 Drain
X5:6
1
p<
X5:7
135
3
H
(6) Relay K53, out-of-balance
X31:2
44
94
(5) Programmer, row H, spin
extraction
2
3
2
68
(4) Relay K31, drain
(7) Level control B1,
extraction
(17) Speed control B31
K10
21
(12) Relay K9
low extraction
(13) Relay coil K9
low extraction
21
126
123
22
K9
A1
K9
A2
K10 A1
5
(14) Relay coil K10
high extraction
A2
(15) Relay coil K31
Drain
A1
K31
A2
F4
3
(16) Overheat protection F4
extract motor
X6:9
X26:9
X26:7
X6:7
4
X5:9
D : Pupply: see ''Power
supply and start'' sequence
D
1684
17 9108 24
12 Type
Edition Page
12. Function Sequences
Out-of-balance
This acts as a safeguard against excessive stress during the extraction. If
the wash is unevenly distributed in the drum, the extraction stops, the wash
is redistributed and the extraction starts again. This takes place
automatically as follows:
• Out-of-balance switch S9 (3) trips.
Immediately afterwards:
• Relay coil K53 (10) is energised and locks since K53:33-34 (4) and
K53:43-44 (6) closes.
• K53:81-82 (28) cuts power to spin contacts K9 and K10, and the
machine stops the extraction.
• K53:71-72 (16) cuts power to relay coil K3 (17) (distribution speed).
• K53:51-52 (18) cuts power to relay coil K31 (21). This closes K31:71-72
(24), energising drain valve Y1 (25) and closing the drain.
• K53:13-14 (7) closes, energising valve Y14 (9) and letting cold water into
the drum.
If the drum speed falls below about 310 rpm (220 litre models) or 550 rpm
(120 litre models):
• Speed control B31 (11) switches to position 1-2. Since K31:51-52 (12)
is closed, this energises relay K2, and the machine starts to run at wash
speed.
Once the water reaches the high level:
• Level control B1 (5) switches to position 31-33, cutting the power to relay
coil K53 (10). K53 unlocks. Valve Y14 (9) closes.
• K53:51-52 (18) closes, relay coil K31 (21) is energised when reverser
contact 3b closes (see ”Distribution speed”). Drain valve Y1 (25) is deenergised (K31:71-72 (24) breaks) and the drain opens.
• K31:51-52 (12) cuts the power to relay K2, K31:43-44 (13) closes,
energising relay coil K3 (17). The machine switches from wash speed to
distribution speed.
• After about 30 seconds, time relay K63 contact 12-13 (30) closes. If the
water level now falls below level control B1 (29)
minimum safety level (extraction), this energises extraction relay K9 and
the extract starts again. At the same time, K9:11-12 (15) cuts the power
to relay coil K3 (17).
Service
Manual
Service
Manual
17
12. Function Sequences
A : Per supply: see
''Power supply and start''
sequence
9108 25
12
Type Edition Page
62
A
3
(1) Programmer, row M, stop
M
2
1
63
52
33
(2) Relay K31, drain
K53
K31
142
67
34
(3) Out-of-balancce
switch S9
3
4
S9
(18) Relay K53 out-ofbalance
51
K
2
1
1
3
33
K53
b
(20) Reverser, row 3b
71
(4) Relay K53, out-of-balance
93
86
34
B1
P<
(5) Levelcontrol B1
A1
31
K31
A2
33
32
(21) Relay coil K31 drain
K63
M
(6) Relay K53 out-of-balance
90
K53
S34
2
(23) Switch S34
(drain)
43
99
14
K53
91
K31
72
78
2
S36
(cold water)
(24) Relay K31 drain
71
13
1
X9:8
X10:1
73
(8) Switch S36
(22) Time relay K63 drain
68
44
(7) Relay K53 out-of-balance
(19) Programmer, row K
drain
X9:3
(9) Valve Y14 Cold water
(25) Valve Y1 drain
Y1 M
Y14
X10:2
(10) Relay coil K53 out-ofbalance
K53
X31:1
X9:9
23
1
3
24
2
94
(11) Speed control B31
X31:2
56
H
K31
1
81
4
K31 To relay K2,
K53
111
135
11
p<
(29) Level control B1
Extraction
13
150
K10
(30) Time relay K63 drain
12
11
K63
136
(15) Relay K9
Low extraction
B1
12
12
(28) Relay K53 out-of-balance
82
Wash
44
X5:6
(14) Relay K10
High extraction
2
96
51
43
(13) Relay K31 Drain
(27) Programmer, row H
extraction
3
52
(12) Relay K31 Drain
(26) Relay K31 drain
K31
B31
13
11
K9
To relays K9/K10,
Extraction
12
130
X5:8
(16) Relay K53 out-of-balance
71
K53
112
72
(17) Relay coil K3
distribution speed
D : Power supply: see
''Power supply and start''
sequence
A1
K3
A2
D
1690
17 9108 26
12 Type
Edition Page
12. Function Sequences
Programmer advance
The programmer stops at three stages in the wash cycle: during water
filling, heating and if the out-of-balance switch trips.
The following general conditions must be met for the programmer to start:
• The door must be closed and locked, and the programmer knob must be
at I (see ”Power supply and start” sequence).
• Row M, stop (1) must not be programmed.
The events at the different stages in the wash cycle are as follows:
• Water filling
The programmer motor (11) stops since both level control (6) switch
contacts are in the left-hand position. Once the correct level is reached
(depending on how row N (5) has been programmed), the level control
contacts switch, and the programmer motor is energised again.
• Heating
During heating, thermostat B11 (7) switch contact is in position 11-13.
This cuts off the power to the programmer motor. Once heating has
finished, the contact switches to position 11-12, and the programmer
motor is energised again.
• Out-of-balance
If the out-of-balance switch trips, relay K53 opens (see ”Out of balance”).
K53:51-52 (2) then cuts the power to the programmer motor. At the end
of the out-of-balance sequence, K53:51-52 closes again.
• Drain and extraction
During the drain phase, row K (3) is in position 1-3. Relay K31 is
energised during drain. In this case, K31:13-14 (9) is closed and the
programmer motor is energised, even once the water level has dropped
so that the switch contact on level control B1 (6) cuts the power.
Since draining also must be programmed during extraction, the above
conditions also apply during extraction.
Service
Manual
17
12. Function Sequences
9108 27
12
Type Edition Page
A : Power supply: see ''Power
supply and start'' sequence
A
3
(1) Programmer, row M, stop
M
2
63
1
52
K53
(2) Relay K53, out-of-balance
67
51
3
K
(3) Programmer, row K, drain
1
69
2
81
K31
(4) Relay K31, drain
110
82
3
N
1
33
87
B1
P<
31
21
23
22
(6) Level control B1
88
32
(5) Programmer, row N, high level
2
86
B1
P<
68
11
B11
(7) Thermostat B11
13
12
61
(8) Relay K31 drain
K31
62
(9) Relay K31, drain
13
K31
14
1
5
S26
M
M21
(10) Switch S26, step programme
motor
(11) Motor M21, programmer
4
Service
Manual
D
D : Power supply: see ''Power supply
and start'' sequence
Service
Manual
Machine with card programmer
Fig.
Y1
Switch ON. Switch acts as main switch for
operating circuit.
Y2
Switch RESTART. Switch restarts
programme after ''programme stop'' and stops
the advance of the buzzer.
Y3
Swtich GENTLE ACTION, provides gentle
action during wash.
Y4
Switch DRAIN opens the drain valves.
Y5
Switch HOT WATER flushes hot water in the
machine.
Y6
Switch COLD WATER flushes cold water in
the machine.
Y7
Switch DETERGENT. Causes detergent in
compartment 1 to be flushed in to the
machine.
K2
Relay for wash motor – distribution speed.
K3
Relay for wash motor – wash speed.
K4
Relay for drain.
K5
Relay for restart.
K6
Relay for unbalance cut out.
K9
Extraction relay, low speed
1
21
21. Automatic unit
1
K10 Extraction relay, high speed
K11 Extraction relay, high speed (not used for
380/220 V motor)
X1
Delay unit – relay circuit which delays the
switching off of the doorlock's electromagnet
from 20 to 30 seconds. This makes it possible
to open the door after the corresponding time
after the programme stop.
X3
Reverser – provides start impulses to
reversing and extraction giving programme
controlled drain and distribution respectively.
X4
Buzzer – to indicate programme stop.
X8
Timer relay – drain.
X9
Timer relay – extraction.
X10 Unbalance cut out.
N
Level switch – pressostat to guard the water
levels. This is connected to the drain valve's
riser to the drum. The level switch also
prevents heaters coming on without water.
S, G, M, V, E, I, L and T are contact components
for quick connections of the different units to the
automatic unit.
2440
9406
1
Service
Manual
21
21. Automatic unit
Machine with frequency control
3
K18
K19
B31
MU1
B40
D1
Circuit breakers,
motor control
LC1
T10
S9
LC2
F12, F13
K71
Conventional fuses
B51
2213
Fig.
B31
Rotation guard for sensing that the drum has stopped before the
door can be opened. This guard also indicates that the drum is
actually rotating when the motor is operating.
B40
Buzzer to indicate program stop
B51
Speed selector for extraction speed
D1
Delay unit - a capacitor circuit which delays switching off of the
door lock solenoid, and thereby makes it impossible to open the
door before the delay time has expired.
F12, F13
Motor fuses
K18
Relay - drain tank
K19
Relay - pump
K71
Relay MU1
LC1
Interference suppression unit.
LC2
Interference suppression unit.
MU1
Motor control unit for main motor’s direction of rotation, speed and
times at various program steps.
S9
Unbalance switch
T10
Transformer
3
9406
3
Service
Manual
23
23. Timer
Description
The automatic card device controls machine functions
such as filling of water, drain, spin etc. The automatic
card device has a row of microswitches (16) which
sense the absence of pegs in the tracks on a
programmed card. The automatic card device has a
motor which advances the programmed card one
step (one peg) each 30 seconds. During the filling of
water and heating the advance of the card is stopped
till the relevant function is completed and the correct
water level and the temperature selected on the
thermostat have been reached. The advance of the
card continues when the functions are completed.
Automatic card device
Repair instructions
• Check that the synchronised motor of the
automatic card device is live. Note that the
microswitch (side H, Y11) which reads the dial
must be actuated. The microswitch for the
synchronised motor (V-side) must also be
switched on.
• Check that the backing rollers are clean and that
the track followers between the card and the
microswitches are clean and run smoothly. (The
card can often leave detergent on the backing
rollers and track followers).
Micro-switches
Sensor
Backing roller
9406
1
23
Service
Manual
23. Timer
If the syncronised motor receives power but the motor
is not running:
– Remove the clamp which holds the motor and
check that the output shaft of the motor
revolves. (A fully synchronous motor can only
rotate in one direction.
– If the motor functions, change the driving gear.
Motor
Clamp
Gear
To check the microswitches:
(A special test card is available to adjust and chek the
microswitches. The card is inserted in the automatic
card device with the coloured area facing up and on
the right. Use the edge of the opening as an
indication line).
1. Turn the automatic card device dial to position O.
2. Insert the card.
3. Turn the automatic card device dial to position 1.
Test card for microswitch
control
Microswitch
Protecting plate
4. Slowly push the card out and in and check that all
the microswitches switch off (within the two areas
on the card). It is advisable to use a buzzer for this
check.
5. If any of the microswitches need to be changed/
adjusted, remove the two screws which hold the
black protecting plate and remove the protecting
plate. If necessary, replace faulty microswitches.
6. When carrying out adjustments the test card shall
be inserted so that the white area on the card is
situated at the edge of the opening of the device.
Using the screw, adjust the microswitch so that the
screw switches to the ON position.
7. Repeat point 4 in order to check that the switch is
in the correct position.
2
Adjusting screw
9406
Service
Manual
23
23. Programmer
Description
The programmer is electronic and is made up of two circuit
boards, the control board with microprocessors and
program memory, and the relay board with relays and
interference suppression circuits. The programmer has the
following outputs and inputs:
• Outputs which, via relays, control the various functions
of the machine such as water fill, drain, spin etc.
• Outputs which control the information that is to appear
on the display.
• Inputs that detect keystrokes from the keyboard.
• Inputs that give information about the status of the
washing machine from, for example, thermostat
sensors, level detectors, out-of-balance detectors, door
lock and speed switch.
The programmer is controlled by the instructions stored in
the program memory. The memory is in the form of two
memory chips (see diagram below):
• The lower chip, which contains memory information that
cannot be changed, contains instructions about
operation, service program, relay control, sensing of
inputs etc. It also contains the standard programs
supplied with the machine on delivery.
• The upper memory chip stores programs created by the
customer. The content of this memory can easily be
changed by erasing unwanted programs and creating
new ones.
P4 Not to be used P3 level check adjustment,
Service switch
factory setting only mid-position P2 level check adjustment, zero position
Display
X1 Connector for control panel
X3
Level check
Program chip
for user
programs
X4
Program chip
for standard
programs
X8
Connection for
key switch
P1 Display
contrast adjustment (normal
adjustment:
fully clockwise
minus 1-2 mm)
Control
Transformator Fuses
9406
X7
S1 S2 S3
5V 12V
X5
X6
1103
3
23
Service
Manual
23. Programmer
Repair Instructions
A faulty electronic unit must be replaced, not
repaired.
Removing the circuit board
• Unplug the board connectors and the tube to the
level detector (see diagram below).
• Unscrew the 6 screws that secure the board.
• Unplug the connector from the keyswitch and the
ribbon from the control panel.
Changing the memory chip for user programs
NOTE: Marking
on chip facing
right way
Programmed chip
with user programs
If the control board has to be replaced, the program
chip containing programs created by the user may be
moved to the new board, provided the chip is not
faulty.
Carefully remove the chip from its socket and transfer
it to the new board.
IMPORTANT
The memory chip must be installed the right
way round in accordance with the markings on
the chip and the socket.
Check that the programs in the transferred memory
chip can now be selected with the new circuit board.
1103
Check that the programs statistics are correct (by
selecting program number 00 and pressing PROG
INFO). The statistics display must not show the
characters ?\>, only numbers.
If any of the above does not work, the original
memory supplied with the new board must be
installed and the wash programs will have to be
reprogrammed.
Hose for level control
Example FLE 360
4
1379
9406
Service
Manual
23
23. Programmer
Installing the circuit board
Installing the ribbon cable
• Plug in the connectors from the keyswitch and the
ribbon cable. Note that the ribbon cable must be
folded as shown in order to be plugged in the right
way round.
• Check that the guard strip between the board and
the control panel (see sketch) is in position.
• Secure the board with the 6 screws and put back
the board connectors and the tube to the level
detector.
Removing the control panel and
circuit board
• Unplug the board connectors and the tube to the
level detector.
• Remove the two metal clips by pulling them
straight upwards.
Ribbon cable
Guard strip
• Pull the unit forward and outward so that the two
metal tongues unlatch from the fixing eyelets.
1380
Removing the control panel and circuit board
Metal clips
Fixing
eyelet
Example FLE 360
9406
Tube to level detector
1378
5
23
Service
Manual
23. Programmer
Control transrormer
On the primary side of the control transformer there
are four terminals for 208, 220, 240 and 480 volt, and
a neutral terminal. There are two secondary windings,
one of which has a centre tap. The secondary
voltages are 11-14 volt and 2 x 12-16 volt. The
diagram of the transformer is given below. On the
secondary side there are references to the second
board terminal numbers for the control voltages.
480 V
11-14 V
240 V
12-16 V
220 V
12-16 V
208 V
0V
480 V
X5/4
11-14 V
240 V
X5/5
220 V
208 V
X5/3
X5/1
0V
X5/2
12-16 V
0
12-16 V
1105
6
9406
Service
Manual
24. Reverser
24
Description
The revering and gentle action of the machine are
controlled by the reverser. This contains a reversing
cylinder with permanent cams which actuate the
making and breaking contacts. The reversing cylinder
is driven by a synchronised motor which rotates once
in 3 minutes.
Repair instructions
Checking the reverser motor
• A complete motor can only rotate in one direction.
If the reverser motor is live but the motor is not
running, replace the motor.
• Remove the clamp which holds the motor.
• Mark up the push ons of the motor connections
and remove them.
• Replace the motor with a new one. Check that the
cogs enter the reverser correctly.
• Connect the cables and put back the clamp.
If the motor runs but the reverser cylinder does not
advance, change the entire reverser as this has an
internal fault.
No other measures are recommended for the
reverser.
Clamp
9406
Syncronised motor
1
Service
Manual
25
25. Contactor
Data
The contactor can handle a nominal voltage of +10%15%.
Description
The contactor consists of:
• Housing in two halves with fixed, make and break,
contacts. The halves are secured by spring
brackets.
• Movable contact bridge with movable contacts.
• Solenoid with coil and core.
The upper half of the core is suspended by springs
and attached to the moving contact bridge.
The fixed, lower half of the core is fitted with screened
windings which divide the flow through the core. The
flow must never falls to zero and mains hum is
prevented.
Movable contact
Movable contact bridge
Fixed
contact
Spring bracket
Coil
Securing
plate
Securing plate
Screen winding
Magnet core
9406
1
25
25. Contactor
Service
Manual
Repair instructions
The contactor fails to make or break
• Check that the operating coil is energised. If this is
the case, take measurements at the coil to check
for a break. If a break has occurred, replace the
coil as follows.
• Undo the contactor and lift it out.
NOTE! The connection cables to the contacts do
not need to be removed.
• Price apart the spring brackets and carefully take
the contactor halves apart; be carefully so that the
movable contacts do not jump out.
• Loosen the connections to the coil.
• Replace the coil.
• Prior to reassembly, check that the contact
surfaces to the magnet core are clean and
undamaged.
• Reassamble and replace the contactor.
The contactor hums considerably
• Loosen and take the contactor apart as described
above.
• Check whether or not the screen windings are
intact. A damaged screen winding causes a loud
hum. If this is the case, replace the contactor.
• Check for foreign particles on the contact surfaces
of the magnet core. Clean carefully with a fine
emery cloth if necessary.
The contactor sticks
• Undo and take the contactor apart as described
above.
• Check that there are no burrs on the coil bobbin
which brake the motion of the movable contactor
halt. Where necessary, deburr.
• Check that the movable contact bridge can move
freely in the contactor housing and that the
movable contacts are correctly seated in their
holders.
Other contactor faults
• Replace the contactor.
2
9406
Service
Manual
25
25. Relay
Description
Each relay consists of:
• A casing in two halves, containing six normallyopen and/or normally-closed contacts. The two
halves are held together by spring clips.
• A moving contact carrier containing moving
contacts.
• A soleniod, with coil and core.
• (Optionally) an auxiliary contact block, for
increasing the number of contacts.
The magnetic core is split, with the upper part, which
carries the moving contact block, being springsecured.
The fixed, lower portion of the core carries shading
windings which modify the phase of the flux trough
the core, so that it never reduces to zero, eliminating
50/60 Hz hum.
Auxiliary contact block
Moving contact block
Fixed contact
Moving contact
Spring clip
Spring clip
Coil
Magnetic core
Shading winding
G016
9406
1
25
25. Relay
Service
Manual
Relay repairs
The relay does not open or close
•
•
•
•
•
•
Check that the coil is energised. If so, check its
continuity. If the coil is open-circuited, replace it as
follows:
Remove the auxiliary top contact block as described
below under Replacement of Auxiliary Contact Block.
Undo the connector and remove it.
NB: The wires to the contacts do not need to be
removed.
Prise off the spring clips and carefully separate the two
halves of the main relay block. Be careful not to allow
the moving contacts to spring out.
Remove the connections to the coil and replace the coil.
Before re-assembly, check that the surfaces of the
magnetic core are clean and undamaged. Re-assemble
and reposition the connector.
Loud hum from the relay
•
•
•
Unscrew and disassemble the relay as described above.
Check that the shading windings are undamaged –
damaged shalding windings will result in considerable
hum. If the windings are damaged, replace the entire
relay.
Check that there are no foreign particles adhering to the
contact surfaces of the core. If necessary, carefully clean
the surfaces with fine emery cloth.
Relay is sticking
•
•
•
Remove and dissamble the relay as described above.
Check that the coil does not have any sharp edges or
flash that are/is preventing free movement of the moving
part of the core. Rub off any sharp edges or flash if
necessary.
Check that the moving contact carrier can move freely in
the relay casing, and that the moving contacts are
correctly located in their housings.
0940
Relay is sticking
•
Replace the relay.
Replacement of the auxiliary contact block
•
•
•
2
Remove the auxiliary contact block as follows:
– Using one finger, press the rear edge of the
auxiliary contact block forwards and upwards
until the block disengages. (The rear edge is that
which is marked HN01/HN10: see diagram).
Fit the auxiliary contact block as follows:
– Position the auxiliary contact block on the body
of the relay so that the black tab of the auxiliary
contact block locates in the pole clips and the
red tab locates in the recess in the moving
contact block (see diagram).
– Press the auxiliary contact block backwards until
its rear edge drops down and clips into position.
Check that the auxiliary contact block is operating
properly, as follows:
– Press and release the red/green pin in the middle of
the auxiliary relay block, and check that the moving
contact carrier moves freely without binding.
9406
Service
Manual
26
26. Level control
Description
The level control is a pressure guard which controls
31
different pressures, i.e. water levels, independent of
each other. The level control has two filling levels and
High
a third level which blocks the spin cycle so that it
level
cannot start while there is water in the drum. The
terminal configuration is illustrated in the adjacent
figures.
32
33
22
23
Low
level
21
Control instructions
All level controls for the different machines are set by
the factory. These settings should not normally be
changed. For this reason, the level controls are sealed
with locking varnish.
Caution! The machine's guarantee ceases to be
valid if any adjustment is made to the level
control.
12
13
11
In special cases it is possible to change the break and/ Spin program block
or make level – but only within a limited range. This is
because each break level requires a special set of
pressure springs.
120 l drum
Control of water levels
• Start the machine and select a standard program.
Check the low level during pre-wash or main wash,
and high level during rinse. Fast forward with the
start button. Check that the levels agree with the
illustrations.
High level
160
Break level
Make level
235
Low level
Action in the event of overfilling
• Check the hole in the nipple on the underside of the
level control. Clean as required. Note that the hole
has a restrictor which must not be enlarged.
• Check that the hose to the drain is not blocked.
Clean as required. Clear the hose with compressed
air and without water in the machine.
• Check that there are no holes in the hose caused
by abrasion. This may happen occasionally if the
hose lies against the drive wheel.
• Overfilling can also result from burnt contacts.
Replace the level control if this is the case.
195
Break level
Make level
265
220 l drum
High level
125
195
Break level
Make level
Low level
Break level
Make level
215
265
Water levels in relation to the centre of the drum.
9406
1
26
26. Level control
Service
Manual
The machine does not fill with water
• Check that the nipple on the underside of the level
control is not blocked. A blockage can be caused
by residual pressure below the level control's
membrane indicating incorrectly that a level has
been reached.
• Check the level control's function as follows:
– Connect a measuring instrument across the
terminal pin.
– Remove the hose from the drain valve.
– Blow carefully into the hose and check the
terminal's function with the measurement
instrument.
• The machine not filling with water can also be
caused by burnt contacts. Replace the level control
if this is the case.
Replacing the levelcontrol
Identify the connections, i.e. by marking, so that they
can be connected to the correct pins.
• Clear the hose with compressed air before the new
level control is fitted.
• There must be no water in the machine when the
control is replaced.
2
9406
Service
Manual
26. Level Detection
26
Calibrating the level detector
The level detector is at the left-hand end of the circuit
board. Both zero level and mid position must be
calibrated. Potentiometers P2 and P3 are used for
these adjustments.
IMPORTANT
Do not adjust potentiometer P4. It is used for
factory adjustments only.
Adjust the zero level before the mid level.
Zero level adjustment
• Make sure there is no water in the drum.
• Set the service switch to position 4, Service
program
• Disconnect the tube from the level detector.
• Read off the level on the display (bottom row, left).
The reading must be between 0 and 4.
• If necessary, adjust with potentiometer P2.
Mid-level adjustment
• Connect a pressure of 300 mm water gauge to the
level detector. See example below.
• Read off the level on the display (bottom row). The
reading must be between 126-128.
• If necessary, adjust with potentiometer P3.
Level detector
300 mm
water
gauge
Service switch
P4
P3
P2
1107
9406
1
26
26. Level Detection
Service
Manual
Setting the water level
This is the procedure for determing how many "units"
are needed to reach a given water level in the drum
(so that this value can be entered in the wash
program):
• The key on the control panel of the machine must
be in the WASH position. Set the service switch to
posotion 4, Service program.
• Press O, 1 and START. This activates the cold
water valve and the level detector. (To activate the
hot water valve, press 0, 2, and START). The
following text appears on the display:
SERVICE PROGRAM CHOOSE FUNCTION 001
COLD WATER
**ON** LEVEL: 1>XXX 2>XXX 3>XXX
LEVEL XXX TEMP. XXX°C
LEVEL 1, 2 and 3 show the manufacturer's
recommended figures for level 1 (Empty), level 2
(Low) and level 3 (High) for this model. LEVEL 1
(Empty) is used by the microprocessor as a limit value
for opening the door, switching on heating elements (if
any) and starting the spin. LEVEL 1 cannot be
reprogrammed and is shown as a reference only.
The reading at LEVEL on the bottom line of the
display increases as the water level rises in the drum.
When the desired level is reached, press START
again to shut the water walve. The water level can
now be read off on the bottom line.
The TEMP. indicator shows the inlet temperature of
the water. On the basis of this figure the programmer
can determine exactly the inlet temperature of the
water when choosing COLD WATER or HOT
WATER. If the model in question does not have builtin heating elements or steam heating, the highest
possible water temperature is determined by the inlet
temperature of the hot water (which may be very much
lower than the outlet temperature from a water heater
unit because of losses in pipes).
2
9406
Service
Manual
27
27. Thermostat
Data
Area from – to
Max temperature for bulb
approx 3°C
150°C
Description
The thermostat checks the temperature during the
course of the programme. The relays of the heating
element are actuated by making and breaking
contacts.
The thermostat sender (NTC resistor) is situated at the
bottom of the outer drum to the right of the heating
element. Cables go from the sender to the thermostat,
which is situated in the operating panel. The
resistance signal from the sender to the thermostat is
determined by the water temperature. When the input
signal has reached the value selected on the different
contacts, the relevant contacts, B, C and D are
activated. The selection of the appropriate contact is
controlled by the programmed card in the automatic
card device.
Repair instructions
Thermostats should be replaced, as repair is not
recommended. Replacement of sender: To prevent
heating of the sender, a digital instrument shall be
used to measure the sender (NTC resistor). The
resistance between the sender cables shall be 1 kohm
at room temperature).
• Remove the protection plate at the bottom of the
front of the machine.
• Bend up the rubber strip on the rail and unscrew
the rod. Remove the drip pan, see illustration.
• Release the sender cables from the thermostat.
Remove the sender and replace it with a new one.
• Connect the sender cables to the thermostat
terminals 6 and 7.
Sensor thermostat
Drip pan
element
Impact plate
Rubber strip
Dismantling sender
thermostat
9406
1
Service
Manual
28
28. Unbalance cutout
Description
The unbalance cutout is a safety device. This prevents
the machine from being damaged during spinning as a
result of uneven distribution of the washing.
This unbalance cutout consists of microswitches and
an operating arm installaed in the automatic unit,
together with a circular sensor which is installed in the
counterweight of the machine.
If the counterweight, and subsequently the sensor,
move outside a certain area, the sensor will activate
the microswitch via the operating arm. The operating
power to the spin relay is consequently cut and the
timer switches over to washing speed while at the
same time the machine takes in cold water to the high
level. The timer then switches over to distribution
speed and a new attempt to spin is made.
For further detailes see "12. Operational Sequences".
Microswitch
Attachment plate
Operating arm
Sensor
5 mm
9406
1
28
Service
Manual
28. Unbalance cutout
Repair instructions
Fas
Checking the adjustment of the unbalance cutout
• When the machine is empty, check that the
operating arm of the unbalance cutout is situated 5
mm under the centre of the sensor. If necessary,
adjust by
– moving the sensor
– carefully bending the attachment plate of the
microswitch.
Unbalance cutout switches off several times
• Unsuitable batch of washing.
• Unbalance cutout incorrectly adjusted, see above
mentioned check.
Imbalance
cutout
Breaking
contact
imbalance relay
• Inferior shocks absorbers, see "43. Frame".
Coil
imbalance
relay
Imbalance cutout
2
9406
Service
Manual
Description
up to machine No.
29
29. Door and safety locking device
1
-91/5500 (120 l machine)
-91/5874 (220 l machine)
Fig.
1
The machine safety locking device is a safety system
which prevents personal injury through the following
precautions.
• The machine cannot be started until the door is
shut.
• The door is automatically locked when the
machine starts.
• It is not possible to open the door until 20-30
seconds have elapsed after the washing
programme has ended. This ensures that the drum
is motionless when the door is opened.
Warning!
Before opening the door of machines with an
automatic card device it is essential to check
that the water has been emptied for the drum,
either manually or via the programme card.
A1 solenoid
Microswitch
Lock rocker
Link
Locking pin
Pivot
Handle
Microswitch
Y8
Brief descripton of the function of the safety
docking device
1. Door locked
2. Timer at position 1.
Microswitches on the side
of the door lock ON.
Door lock's solenoid A1
locks the handle making it
possible to open the door.
The door lock's microswitch is actuated by the
solenoidand arrives at
position ON.
3. Programme is run.
4. Programme end. Pro- Capacitor in the delay
gramme dial in pos. 0. circuit X3 is discharged
over the solenoid. The
solenoid releases after
20-30 seconds, the handle
is desengaged and the
door may be opened.
Repair instructions
If the solenoid does not lock the door.
• Check that the coil is receiving 100-110V direct
voltage. Measure the coil to determine if there is
an interruption.
• Check that the armature of the solenoid is not
stuck.
• Replace the entire solenoid.
Other possible faults:
•
Faulty microswitch.
•
Faulty delay unit.
•
Mobile parts jammed.
9406 •
Handle not in lock position.
Phase
Programme
dial
Other
functions
Manual
functions
2221
1
29
29. Door and safety locking device
Service
Manual
Description
From machine No. 91/5501– (120 l machine)
91/5875– (220 l machine)
The door safety locking device consists of the following main parts:
Fig.
• Locking unit. The door locking unit is placed behind the front plate and
under the detergent box. The unit consist of a coil, which blocks the
door, and two micro switches. Switch S3 indicates that the door is locked
and switch S4 that the coil is activated.
2
• Delay unit. The delay unit is mounted in the control unit. It consists of a
printed board with two capacitors and a time relay. The dealy unit
controls the time for the door locking after the program is finished or in
case of electrical cut out.
• Locking arm. The arm is placed between the door handle and the locking
unit and transfer the movement from the door handle to the locking unit.
2
Locking unit
Switch S4
Coil
Locking arm
Switch S3
Delay unit
Door handle
2438
2
9406
Service
Manual
29. Door and safety locking device
29
Function
Fig.
When the door has been locked by the door handle, the locking arm is
turned and activating the microswitch S3 in the locking unit. When the
programmer knob is turned to position I, switch S30 is closed, the delay unit
receives voltage and the coil is locking the door. And then switch S4 is
closed and the program can start.
3
In order to prevent the door from being opened directly after the final
extraction (roll out time can be about 2-3 minutes) but at the same time limit
the delay time after the program to about 35 seconds, the delay unit has a
time relay and works as follow:
• The time relay motor K62 receives voltage even if the ON/OFF switch
S1 is in position OFF. This means that the contact of the time relay
normally is in position 12-13 directly form start and when the drum is
rotating with wash or distribution speed. During this circumstance one of
the capacitors is disconnected and at the same time the 39 kΩ
resistance is short circuited. The door can now be opened 35 seconds
after a power cut out or when the programmer knob is turned to 0.
• At extraction relay K9 or K10 is activated and the voltage to time relay
motor K62 is interrupted. The contact of the tie relay switch over to
position 11-12 and the delay unit now keeps the door locked about 3-3,5
min. when the programmer knob is turned to 0 or a power cut off. After
the extraction it takes two minutes (120 l machine) resp. three minutes
(220 l machine) before the contact of the time relay go back to position
12-13.
3
Ex: Card programmed machine
9406
1703
3
29
29. Door and safety locking device
Service
Manual
Fault finding
The coil does not lock the door when programmer knob is turned to I.
• Check that lamp in the red push button is lightning. If not, check that the
emergency opening is not activated.
• Check that the coil is receiving voltage and that the plunger can move
freely. Check with a ohm-meter for interruption in the coil.
• Check that the delay unit receives voltage.
• Check that switch S3 in the locking unit is activated when the door is
closed and door handle is closed position.
The machine does not start in spite that the door is locked by the
coil.
• Check that switch S4 is closed when the coil is activated.
Repairing
The door lock is an important safety device. Therefore a faulty
locking unit or delay unit may not be repaired. It shall be changed
for a new unit.
4
9406
Service
Manual
29
29. Door and safety locking device
Description FLE MP FC (Machines with frequency control)
The machine door lock is made up of the following main components:
Fig.
• Lock unit, located behind the front panel under the detergent
compartment. The unit contains a coil which locks the door, and two
microswitches. Switch S3 indicates that the door is locked and switch S4
that the coil is activated.
4
• Delay unit, located inside the automatic control unit. This unit consists of
a circuit board which controls the time that the door remains locked in a
power cut.
• Locking arm which connects the door handle with the lock unit. The arm
relays the mechanical action of the door handle to the lock unit.
4
Låsenhet
Locking unit
Switch S4
Brytare
S4
Locking
arm
Låsarm
Coil
Dragmagnet
Brytare
S3
Switch S3
Fördröjningsenhet
Delay unit
Låsvred
Door handle
2430
9406
5
29
Service
Manual
29. Door and safety locking device
Function
If the machine has not been energised within the last three minutes, the door will
remain unlocked. When the machine is energised the door will be locked if a program
is activated or if the drum is rotating. Upon completion of a program the door will be
unlocked automatically as soon as the drum has stopped rotating.
If the power supply is cut to a machine which was energised the door will remain
locked for three minutes, after which time it will be unlocked automatically.
The diagram below shows how the delay unit works.
Fig.
5
When the machine is energised the delay unit is fed phase and neutral on X194:5
and X194:4 respectively. The door lock coil Y80 is then fed phase (via a normallyclosed relay contact) and neutral from X194:3. The relay coil acts on two conditions that the drum is at a standstill and an ”open” signal from the programmer circuit
board:
• One side of the relay coil receives a neutral when the rotation guard short-circuits
X193:1 and 2.
• The other side of the relay coil is supplied with phase from the programmer circuit
board (”open” signal).
Both of these conditions must be fulfilled for the door to be unlocked.
In the event of a power cut the capacitor will discharge via the relay and the door lock
solenoid. In this way the door lock solenoid continues to operate for three minutes,
after which the door is unlocked automatically.
5
Fördröjningsenhet
Delay unit D1
D1
X194:5
X194:4
X194:3
X194:2
X194:1
X193:2
X193:1
Voltage
Spännings
feed
matning
Rotation
Door
lock Signal
”Open”
signal
"öppna"
LucklåsRotationsfrånprogrammer
programspole
vakt
guard
coilY80 from
verkskort
Y80
circuit
board
6
2439
9406
Service
Manual
29. Door and safety locking device
29
Fault location
Door does not unlock
Conditions: wash program ended and drum at a standstill
Measure the voltage between the following points:
1. X93:2 - X93:3 Should be 0 V DC. If the voltage is 220 V AC, check the rotation
guard.
2. X193:1 - X193:2 Should be 0 V DC. If the voltage is 220 V AC, check the rotation
guard and the cables between rotation guard and delay unit.
3. X194:1 - X194:4 Should be 220 V AC. If not, the ”open” signal from the
programmer circuit board is absent. Check pcb and cables between pcb and delay
unit.
If the door is still locked, replace the delay unit.
Door does not lock
Conditions: door closed and wash program activated.
Measure the voltage between the following points:
1. X194:1 - X194:4 Should be 0 V AC. If the voltage is 220 V AC, the programmer
circuit board will constantly send the ”open” signal. Check pcb and cables
between pcb and delay unit.
2. X194:2 - X194:3 Should be 200 V DC.
- If there is no voltage, replace the delay unit.
- If this voltage is present, check the door lock coil and its cables.
9406
7
Service
Manual
30
30. Motor
Description
FLE and FLE MP
Both motors, one for wash and distribution and one for extraction, are installed on the same
motor bridge. The motors drive the drum and are mechanically connected to each other by
V-belts. On the 220 litre machine there is also an electromechanical connection. The
motors rotate at each other's speed during wash speed, distribution speed and low
extraction speed.
Fig.
1
During high extraction speed the speed guard on the 220 litre machine gives a signal to the
electromechanical connection. This disconnects the motors from each other mechanically.
The wash motor now runs at distribution speed and the extract motor at high speed.
On the 120 litre machine the power supply to the wash motor is disconnected by the speed
guard.
On the motor bridge there are belt tension devices. The extract motor is screwed to a
mobile plate which moves via oblong holes in the motor bridge. This is used to tension the
belt drive between the motors. It is possible to tilt the entire motor bridge with the use of the
oblong holes on the wash motor side. This is used to tension the V-belt up to the wash
drum.
The motors are equipped with thermal guards which are placed in the motor coiling. In the
case of overheating in the motors e.i. if the temperature exceeds 130°C, the guard contacts
cut the power to the motor relays.
The following illustration shows the engagement of both motors. The connection is made
with snap connections, which facilitate the change of motor.
1
Wash
Distribution
Movable plate
Thermal contacts
Elongated holes
Wash motor
Motor bridge
Thermal contacts
Violet
B1 Yellow
M1 Black
B2 Green
M2 White
B3 Red
M3 Blue
Wash motor
Low speed
Violet
High speed
Speed guard
Extraction motor
Rectifier
Connection
only model 220 l
both 120 & 220 l
Extraction motor
9406
2431
1
30
Service
Manual
30. Motor
FLE MP FC (machines with frequency control)
In machines with frequency control the same motor is used for wash speed,
distribution speed and extraction. The motor is located on a motor mounting
plate, and drives the drum via a belt.
The tension of this drive belt can be altered by moving the entire motor
mounting plate thanks to the mounting slots on one side. The motor has a
thermal cut-out located in its windings. This thermal cut-out signals to the
motor control unit in the event of the motor overheating, i.e. if the
temperature exceeds 130°C.
The various motor speeds for normal action, distribution and extraction are
controlled by a microprocessor-based motor control unit (MU1). The control
signal for the motor control unit goes via a speed selector, which the
operator can also use to select specific extraction speeds for low and high
extraction.
Fig.
The illustration below shows how the motor is positioned. It is connected
using a quick connector, which makes motor replacement easier.
2
2
120 l - machine
Counterweight
Motor mounting
plate
220 l - machine
Counterweight
Motor mounting
plate
2432
2
9406
Service
Manual
30
30. Motor
Program start
The following conditions must be fullfilled before the
motor can start:
• Motor not overloaded.
• Door shut.
• Go-ahead signal from programmer.
When the door is locked relay K71 is activated
feeding power to the electronic control unit and the
motor is allowed to start.
Extraction
Fig.
3
3
For extraction the programmer sends signals for
either low or high extraction. The operator selects
the extraction speed required by means of the
speed selector thumb wheel, on the machine front.
The speeds are selected as follows:
High extraction
FLE 120 MP FC
Low extraction
speed
High extraction
G-factor
speed G-factor
1
340
40
4
590
120
2
420
60
5
680
160
3
510
90
6
760
200
7
850
250
8
950
310
Low extraction
2409
FLE 220 MP FC
Low extraction
speed
9406
High extraction
G-factor
speed G-factor
1
300
40
4
540
120
2
380
60
5
620
160
3
460
90
6
700
200
7
780
250
8
850
300
3
30
Service
Manual
30. Motor
Repair instructions
Overheated motor, motor not running
• Wait till motor has cooled down. Motor guards
are automatically reset after 30 minutes. Restart.
• Possible cause of motor gurads releasing
repeatedly: short circuiting. In both cases the
motor should be replaced.
4
FLE/FLE MP
Very noisy motor
• Breakdown of bearings – replace motor.
Motor running slowly
The motor is probably running on two phases –
measure coils on terminal.
Wash motor only runs at one of the speeds
• Check that the quick connection is correctly
connected.
• Measure coils on plinth, as the fault can be
caused by interruption in one of the coils.
Motor locks
Breakdown of bearings – replace motor
Motor does not turn
Fig.
4
Fig.
5
• Check belt tension.
2434
When checking the belt tension or when changing
belt, follow the instructions shown.
NOTE!
Checking the belt tension should always be a
part of the regular maintenance.
5
FLE MP FC
FLE/FLE MP
• Belt between the wash motor and extraction
motor. Release and adjust backing plate to
correct belt tension according to illustration.
Fasten plate.
A
• Belt between extraction motor and wash drum.
Remove screws for the attachment of motor
bridge at extraction motor side, lower motor
bridge to correct belt tension according to
illustration and fasten bridge.
4
F
2311
120
220
F
30 N
30 N
Amax
12 mm
12 mm
Amin
10 mm
10 mm
9406
Service
Manual
30
30. Motor
FLE/FLE MP FC (Machines with frequency control)
Fig.
5
Loosen the screws holding the motor mounting plate on the motor side.
Lower the motor mounting plate until the correct belt tension is obtained, as
shown in Fig. 5. Secure the motor mounting plate in place.
To adjust the clutch (FLE/FLE MP only)
- 0,0
For a new clutch the airgap between stator and rotor should be 0.3 (-0.0 /
+0.2). This gap should be measured with a feeler gauge when the motor is
cold. The maximum airgap allowed is 0.7 mm.
• Remove the pulley from the shaft.
• Remove the required number of shims (Each one is 0.1 mm).
• Fit the pulley to the shaft.
• Check the airgap.
Motor control FLE MP FC (Machines with frequency control)
Fig.
On the motor control circuit board there is a yellow LED which indicates
various types of fault:
6
6
4
FUSE
1
3
XM4
XM1
6
1
2
XM6
XM3
8
XM2
1
LED for error
indication
XM5
Indication
Cause
The LED flickers.
Motor current is at its limit.
2433
The LED comes on and stays on. Undervoltage in feed to motor control.
9406
The LED flashes for 15 sec and
then the machine tries to start
again.
Motor control has halted because
of wrong signals in control circuit.
The LED shows double flashes.
The machine has been stopped on
account of a fresh fault directly after the
last sequence described.
5
30
Service
Manual
30. Motor
In two cases the machine will be halted without indication:
• Overvoltage in feed.
• Motor and/or motor control overheated.
Motor does not operate when it should
• Check the voltage feed to the motor control unit by:
- Disconnecting XM4 (quick connector)
- Using a voltmeter (AC) to measure between pins XM4:1-2.
Correct value = 220 V (208 - 240 V)
- Using a voltmeter (DC) to measure between XM6:1-4.
Coorrect value = 250-375 V. If not, check fuse
Motor does not operate or operates at wrong speed
• Check against the table below whether the motor is receiving the correct
control code from the speed selector circuit board. Measure at connection
X99:1 - 4 with XM2:1 as reference point.
Speed
6
pin 1
pin 2
pin 3
pin 4
0 Stop
0V
0V
0V
0V
1 Wash speed, right
0V
0V
0V
24 V
2 Wash speed, left
0V
0V
24 V
0V
3 Distribution
0V
0V
24 V
24 V
4 Stop
0V
24 V
0V
0V
5 Reduced wash speed, right
0V
24 V
0V
24 V
6 Reduced wash speed, left
0V
24 V
24 V
0V
7 Stop
0V
24 V
24 V
24 V
8 Extraction 8 (HC)
24 V
0V
0V
0V
9 Extraction 1 (LC)
24 V
0V
0V
24 V
10 Extraction 2 (LC)
24 V
0V
24 V
0V
11 Extraction 3 (LC)
24 V
0V
24 V
24 V
12 Extraction 4 (HC)
24 V
24 V
0V
0V
13 Extraction 5 (HC)
24 V
24 V
0V
24 V
14 Extraction 6 (HC)
24 V
24 V
24 V
0V
15 Extraction 7 (HC)
24 V
24 V
24 V
24 V
9406
Service
Manual
31
31. Speed Guard
FLE/FLE MP
1
Description
Fig.
1
The purpose of the speed guard is to protect the
wash motor during extraction.
On the motor output shaft there is a polarised
magnet element (wash motor on 120 litres; spin
motor on 220 litres) which is sensed by the speed
guard. When the extraction motor has reached a
certain speed the speed guard sends a signal to the
automatic unit and the power is cut. The wash motor
is reconnected when the extraction motor speed has
dropped and the wash motor cannot be damaged
through connection.
LED
Adjustment pot
On the 220 litres machine the two motors are
disconnected. The speed guard cuts the power to
the electromechanical connection on the output shaft
and the extraction motor can speed up without being
followed by the wash motor. When the speed guard
has disconnected the two motors a signal is sent to
the wash motor to run at distribution speed. This is to
protect the ball bearings of the wash motor against
vibrations from the extraction.
The speed guard has a potentiometer for the
adjustment of the cutout point and an LED which
indicates when the cut out point has been reached.
Repair instructions
Speed guards should be replaced, as repair is not
recommended.
1. Remove speed guard.
Place of magnet
2435
2. Install new speed guard and adjust position
according to illustration.
3. Run machine at distribution speed. NOTE: the
machine must be run at the correct frequency.
4. If the distribution relay does not chatter the guard
may be too high. The speed guard should
therefore be adjusted too low as a starting point to
adjustment. Screw the potentiometer
anticlockwise until the relay chatters. The speed
guard can then be adjusted by turning the
potentiometer clockwise until the distribution relay
ceases to chatter.
9406
1
31
Service
Manual
31. Speed Guard
FLE MP FC (Machines with frequency controlled motor)
Description
The rotation guard checks that the machine is completely at a standstill before the
door can be opened. When the drum has been at a standstill for approx. two seconds
the solenoid in the door lock is deactivated and the lock can be opened (provided that
the machine has been emptied of water and the programmer has reset). The rotation
guard also checks that the drum is revolving when the wash or extraction relays are
operating.
Fig.
2
The rotation guard consists of a circuit board in the automatic control unit and a
sensor in a holder on the machine rear. There is a magnet on two of the spokes of the
pulley. Each time a magnet passes the sensor, a contact closes inside the sensor and
it relays a pulse to the rotation guard.
When the machine is at a standstill the rotation guard relays K1 and K2 are closed,
which means that the delay unit and the FL-MP receive confirmation that the drum is
not moving, i.e. the rotation guard and the FL-MP allow door opening.
2
X90 LED
X95
X96
X99
X193:2
X193:1
Fuse F1
X91
X92
X93
X94
2019
X93:2
X95:1
X95:2
Logic section
Pulses from B41: K1 and K2 change
immediately.
No pulses from B41: K1 and K2 operate after
approx. 2 sec
This circuit is not used in FLE MP
X90:1
X93:3
X90:2
L1
2
X91:1
N
X91:2
To control
circuits
X92:2 X92:3
X72:7
X72:4
2436
9406
Service
Manual
34
34. Inlet valve, water
Data
Max capacity, unrestrict., outlet
inlet
12 l/min
20 l/min
Working range, water pressure
0,3-10 bar
Number of sections
1, 2, 3 or 4
Coil
Metal
plate
Description
Pressure
spring
The valve is operated electromagnetically and has a
rubber diaphragm as a closing and opening element.
The valve utilises the water pressure in its opening
and closing action.
Armature
Valve head
The valve is shut when the electromagnet is not
energised. A pilot pressure opening in the diaphragm
causes the water pressure to press the valve
diaphragm against the valve seat and keeps the
valve closed. The hole in the centre of the valve
diaphragm is then sealed by a rubber disc which is
pressed against the valve diaphragm by the pressure
spring of the electromagnet.
When the magnet is energised the armature lifts,
opening the hole in the centre of the diaphragm so
that the accumulated pressure can be relieved
through the outlet. The water pressure in the supply
line can lift the diaphragm off the valve seat, and the
valve opens.
A fine mesh strainer is fitted inside the inlet line in
order to trap particles of dirt etc. The strainer can be
easily removed for cleaning
Ring
Valve
diaphragm
Drain
Filter
Throttle
Washer
A restriction is mounted in the outlet which matches
the water flow to the needs of the machine in
question.
Pressure spring
Armature/
Valve head
Pilot
pressure
opening Closed
Closes
9406
Valve diaphragm
Valve housing
Opens
Open
Closes
Closed
1
34
34. Inlet valve, water
Service
Manual
Repair instructions
Scale deposits can clog the hole in the diaphragm
and disturb the operation of the valve.
It is thus advisable that the valve be taken apart and
cleaned at regular intervals, depending on operating
conditions and the degree of contamination of the
water.
The valve refuses to open
• Check that the coil is being energised.
• Take measurements at the coil to look for a break
or short circuit.
• Take the valve apart and check the openings in
the valve diaphragm.
• Check the inlet strainer and clean if necessary.
• Loosen the coil and clean the surfaces of the
magnet core.
The valve refuses to close
• Check that the coil is de-energised.
The valve is normally closed when the magnetic is
unactivated.
• Check the return spring.
• Check the diphragm.
2
9406
Service
Manual
34
34. Water inlet valve
Data
Maximum capacity, fully open
outlet 160 l/min
inlet
20 l/min
Working range, water pressure
0,5-10 bar
Number of outlets
1, 2, 3 or 4
Coil
Description
Plunger
The valve is solenoid-operated, having a rubber
membrane as the sealing element. Opening and
closing actions are assisted by the water pressure.
With the solenoid de-energised, the valve is closed.
A pilot pressure opening in the membrane allows
water pressure to act on the top of the membrane
and press it down on the valve seat, closing the
valve. In this state, the hole in the centre of the
membrane is sealed by a rubber disc pressed down
on to the membrane by the compression spring
above the solenoid armature.
Energising the solenoid raises the armature against
the spring, opening the hole in the middle of the
membrane and releasing the water pressure above
the membrane. The water pressure then raises the
membrane from the valve seat and the valve opens.
Pressure
spring
Armature
retainer
Valve head and
diaphragm
Valve casing
Filter
Outlet
The inlet pipe contains a fine-mesh strainer to trap
solid particles. The strainer can be easily removed
for cleaning
The outlet from the valve contains a choke which
adjusts the water flow rate to suit the requirements of
the machine.
Pressure spring
Plunger
Armature retainer
Pilot pressure
opening
Valve disc
Diaphragm
9406
1
34
34. Water inlet valve
Service
Manual
Repair instructions
Lime deposits can block the holes in the valve
membrane and interfere with correct operation.
It is therefore recommended that the valve be
dismantled and cleaned at regular intervals,
depending on operating conditions and the amount
of dirt in the water.
The valve does not open
• Check that the coil is energised.
• Measure the coil resistance to check for a short
circuit or open circuit.
• Dismantle the valve and check the holes in the
membrane.
0309
• Check the inlet strainer and clean if necessary.
• Remove the coil and clean the armature.
The valve does not close
• Check that the coil is de-energised. The valve is
normally closed when the coil is de-energised.
Special tool
• Check the return spring.
• Check the membrane (pilot pressure opening).
Dismantle the valve
1. Carefully prise off the coil using a screwdriver and
pull the coil off the stem of the valve.
2. Place the special tool over the stem, so that its
teeth engage with the corresponding teeth in the
upper part of the valve casing. (The tool is
supplied with the machine, secured to one of the
water hoses).
0906
3. Use an adjustable spanner to turn the tool anticlockwise to unscrew the top of the valve.
Reassemble the valve in the reverse order.
0310
2
9406
Service
Manual
34
34. Inlet valve, water
Data
Capacity at 300 kPa
300 l/min
Operating limits
40-1000 kPa
Armature
Coil
Description
The valve is electromagnetically operated and has
a rubber diaphragm as its opening and closing
element. The valve utilises the water pressure
when opening and closing.
When the electromagnetic is de-energised, the
valve is closed.
The water pressure acts through the pilot pressure
opening on the top of the rubber diaphragm.
Because the water pressure is acting on a relatively
larger area on the top of the diaphragm than on the
bottom (part of the underside of the diaphragm is in
contact with the outlet of the valve, where there is
no pressure) the water pressure from below is
insufficient to lift the diaphragm, so that the
diaphragm forms a seal against the valve seat.
When the magnet is energised, the opening from
the top of the diaphragm to the outlet of the valve is
opened. Since the diameter of this opening is
greater that that of the pilot opening, the diameter
of which is limited by the balancing nozzle, the
pressure on the top of the diaphragm falls. The
water pressure on the bottom of the diaphragm can
then lift the diaphragm and open the valve.
Compression
spring
Diaphragm
Balancing
nozzle
Outlet
Inlet
Valve body
Coil
Rubber diaphragm
Balancing nozzle
Compression
Spring
Armature
Pilot pressure
duct
Duct to valve outlet
9406
1
34
34. Inlet valve, water
Repair instruction
Valve operation gradually gets worse
Service
Manual
Needle
Hot water with high lime content may cause scale
deposits in the balancing nozzle of the valve. Clean
the nozzle as follows:
• Shut off the water.
• Unscrew the nozzle and clean it with a needle or
similar. A nozzle marked with one ring around
the head of the screw has a bore diameter of 0.5
mm and a nozzle with two rings has a bore
diameter of 0.8 mm. The diameter of the needle
used to clean the nozzle must not be greater
than the bore diameter.
• Re-fit the nozzle.
• Turn on the water, check operation and check
for leaks.
• If this does not help, check that the inlet filter of
the pilot channel is not blocked.
Where the water is very hard, i.e. contains a high
lime content, it is recommended that the 0.5 mm
nozzle should be replaced with a 0.8 mm nozzle.
Valve does not open
• Check for voltage at coil.
1365
Balancing nozzle
• Measure the resistance of the coil to check for
short circuit or open circuit.
• Dismantle the valve and check that the armature
is not binding. If necessary, clean to remove
scale, particularly in the ducts of the valve
between the top and bottom of the diaphragm.
• Remove the coil and clean the metal surfaces of
the magnet core.
Valve does not close
• Check that there is no voltage across the coil.
Normally the valve is closed when the coil is deenergised.
• Dismantle the valve and check the armature
return spring and check that the armature is not
binding. If necessary, remove limescale deposit,
particularly in the ducts of the valve between the
top and bottom of the diaphragm.
• Check the balancing nozzle in accordance with
the instructions under the heading "Valve
function gradually gets worse".
2
9406
Service
Manual
35
35. Inlet valve, steam
Description
The steam valve is operated electromagnetically
and has a plunger with a valve head as opening
and closing element.
The valve utilises the steam pressure for opening
and closing. In a closed position the electromagnet
is unactivated and the releif hole in the centre of the
plunger is closed by the armature through its
pressure spring. The plunger pressure spring
moves the plunger and valve head against the
valve seat.
By means of a pilot-pressure hole in the plunger the
steam pressure forces the plunger and valve head
against the valve seat with a force proportional to
the steam pressure. The valve closes.
When the valve is to open the magnet is energised,
the armature lifts and exposes the relief hole in the
centre of the plunger. When the overpressure on
the upper side of the plunger is gone, the steam
pressure in the supply line can lift the plunger and
valve head, and the valve opens.
Coil
Armature
Pressure
spring
Valve
head
Flow
Pressure
spring
Plunger
Center of
plunger
Pilot
pressure hole
Repair instructions
It is vital to the operation of the steam valve that the
pilot pressure and relief holes are clean and
unobstructed.
Relief hole
For this reason, the valve should be taken apart
and cleaned at specific intervals which depend on
operating conditions and the purity of the steam.
The valve refuses to open
• Check that the coils is energised.
• Take measurements at the coil in order to look
for break of short circuit.
• Take the valve apart and check the openings in
the valve head and plunger centre.
The valve refuses to close
• Check that the coil is de-energised.
The valve is normally closed when the magnet is
unactivated.
• Check the return spring.
• Check the diaphragm.
9406
1
Service
Manual
38
38. Drain valve
Description
The drain valve is a motor-operated diaphragm
valve which ensures rapid machine emptying by its
opening on a large cross-sectional surface area. Its
design is self-clearing, which eliminates the need
for fluff filters.
The main components are:
• motor with gear
• acme-threaded plunger rod with plunger and
return spring
• rubber diaphragm
• connections for water filling, overfilling and
drainage.
In the open position the valve is de-energised. The
plunger rod is thus screwed down to its lowest
position by the returning spring. The diaphragm is
compressed, forcing the piston downwards and
opening the valve.
When the motor is activated and begins to rotate,
the plunger rod is screwed upwards via the gear,
the diaphragm is compressed, forcing the plunger
upwards, and the valve closes.
The overfilling connection is connected to the upper
half of the washing drum, and the water and suds
are led directlyto the waste outlet, should the inlet
valves or level control cease to function.
The connection for water filling as well as a nipple
for connection of the sensing line for the level
control are located on the riser to the washing
drum.
Drain
Overfilling
connection
Water filling
Washing drum
Nipple for sender
hose connection riser
hose level control
Diaphragm
closed position
Open position
Plunger rod
Guide pin
Motor
9406
Gear wheel
Return spring
1
38
38. Drain valve
Service
Manual
Repair instructions
Deposits of scale in the diaphragm may prevent the
valve from closing or opening correctly. The valve
should be cleaned at specific intervals which
depend on the operating conditions and the quality
of the water.
The valve fails to open or close correctly
• Check that the motor has the correct voltage
supply.
• Check that the plunger rod can move freely.
• Check that the diaphragm is not clogged by
deposits of scale.
Comment
When replacing the motor:
Brown cable: 60 Hz
Blue cable: common
Black cable: 50 Hz
Tensioning the Return Springs
With the valve housing removed:
– Turn the return spring so that the spring's
"tounge" lies against the stop screw.
– Place the valve housing over the return spring
so that the pin on the spring fits into the inlet of
the piston rod (CAUTION! The piston rod shall
be fitted so that its input is longitudal with the
housing).
– Then turn the housing one turn in a clockwise
direction. (In this way the spring's pin will be
threaded into the piston rod. The spring is then
tensioned approximately 1/4 turn, as a result of
the rise in the piston rod).
Stopscrew
2
Spring tounge
Return spring's pin
9406
Service
Manual
39
39. Detergent compartment
Description
The detergent container has three compartments
• compartment 1 for detergent (prewash)
• compartment 2 for detergent (main wash)
• compartment 3 for conditioner
The container is fitted with nozzles coupled to the
inlet valves. These ensures that the detergent
dissolves properly in the water, as well as flushing
the container clean.
A water-filling line runs from the bottom of the
container down to the drain valve riser. This
ensures a favourable flow to the washing, while
also stopping any fumes from the detergent
solution from rising up into the detergent container.
The lid of the container is made of rubber, has a
simple and robust design, and is bolted to the top
panel of the machine.
A siphon device in the fabric conditioner
compartment makes sure that it is completely
emptied, and that no conditioner remains behind.
Repair instructions
When replacing the container, holes should be
drilled for the connections on the nozzles according
to the connection alternative chosen.
Compartment 1
Prewash
Compartment 2
Main wash
Compartment 3
Fabric conditioner
Nozzles
Siphon device
Hose to drain valve
riser
Nozzles
9406
1
Service
Manual
40
40. Heating
Data
Y – connection for 380V
Rated output
See section 2. Data
Connections
Y – connection at 380V
D – connection at 220V
Description
The three elements are situated at the bottom of
the space between the inner and outer drums. They
are actuated by a heat relay which in turn is
controlled by the programme unit and thermostat.
Repair instructions
Heating time unusually long
• Using universal instrument check if one of the
elements are burned out.
D – connection for 220V
• Lime deposits can cause reduced element
performance. refer to manufacturer's instructions
for correct use of descaler. Select permanent
press 90° program.
• To access element:
– Remove lower protective plate at the front of
the machine.
– Fold up the rubber strip at the outer ends of
the stay which is fitted above the lower
protective plate and unscrew the stay.
– Unscrew the drip guard over the elements.
Element
Sensor bulb
Earth
Drip-guard
Bar
Rubber strip
9406
1
40
40. Heating
Service
Manual
Element replacement
• Remove the cover from the inner drum.
• Removed nuts, washers and clamps through the
cover opening in the inner drum.
• Undo the nut on the middle screw of the element
and turn the screw 1/4 of a turn. The
counterweight on the inside is now in a position
to permit the element to be withdrawn.
• Insert a new element, turn the centre screw a
1/4 turn and tighten the nut.
• Fit clamps, washer and nut through the opening
in the inner drum.
• Fit the cover to the inner drum.
• Check that there are no burns on the screw
head or the cover.
• Connect element. NOTE: Earthing!
• Check there is no leak by the element and reset
machine.
2
9406
Service
Manual
43
43. Frame
Description
The frame is constructed on the free-swinging principle, i.e.
the washing drum is freely and resiliently suspended in the
fixed frame.
The entire frame is constructed of bent sheet metal and
aluminium sections forming a stable and torsionally rigid
structure.
The suspension device for the drum unit and motors consists
of four posts, one in each corner, each with a robust spring in
which the washing drum supports are attached. In order to
prevent excessibely great vibrations which can be caused by
imbalance in the drum, a shock absorber is fitted between
the drum and frame by each spring. (The 120 litre model has
twin shock absorbers at the front).
Repair instructions
The spin cutout is repeatedly triggered
• Check the shock absorbers, replace them if required. Note
that the shock absorbers should be fitted with the pluger
rod upwards.
• Check the attachment of the springs:
– on the 60 litre model the mounting bolt should protrude
above the mounting nut by the height of the nut.
– on the 120 litre model the spring is attached by a bolt
from above.
Check that it has been properly tightened down. The entire
spring unit should be replaced in spring replacement.
Wash drum support
Mounting screw
Shock absorber
Mounting nut
Spring unit
Complete spring
unit assembly
Suspension device
9406
1
Service
Manual
49
49. Time Relay
Data
Motor
220V 50/60Hz
Contacts, making capacity 6 (10) A 250V
(breaking capacity)
Dial for setting time
Scale
Description
The automatic unit has a time relay for drain which
prevents the spin from starting too early – the water
must have drained. When the time relay for drain is
live, the timer relay clock is set on a preselected time
and the power to the spin is cut. (The timer relay
engages peg 11 which is unconnected). The power
chain for the spin is made live when the time on the
clock has passed (peg 13 is engaged).
Lock
There is a further timer relay in the power chain of
the spin. This timer relay ensures that the high spin
speed is not connected until the low spin speed has
lasted for a certain time. When the timer relay is live
the circuit for low spin speed is connected and the
timer relay clock is set on a pre-selected time. The
circuit for high speed spin is made live when the
slelected time has passed.
Repair instructions
Gear wheel
The timer relay should be replaced, as repair is not
recommended.
Replacing the timer relay:
1. Remove and mark the time relay connections.
Timing relay
2. Remove the timer relay.
3. Have the new timer relay ready and open the door
above connection terminal.
Insert plastic gear wheel to the appropriate time
interval (see table by door).
4. Turn the indicating hands to the time the relay
should be set on.
5. Install relay and connect cables.
9406
1