Electrolux EBSL70TC.3 Service manual

SERVICE MANUAL
COOKERS
Euro Steam Cooker
© Electrolux
Muggenhofer Straße 135
D-90429 Nürnberg
Germany
Fax +49 (0)911 323 1022
Spares Operation
Edition:
08.01
Publ.-Nr.:
599 51 19 69
685
EN
Contents
1.
1.1
General features .................................................................................................... 3
Models .................................................................................................................... 3
2.
2.1
Appliance data........................................................................................................ 4
Dimensions and capacities .................................................................................... 4
3.
Control elements .................................................................................................... 5
4.
4.1
4.2
4.3
4.4
4.5
Component data .................................................................................................... 6
The electronic oven control (WOEC – control unit) ............................................... 6
Power supply / relay board ..................................................................................... 8
The steam thermostat / relay steam ...................................................................... 9
Actuators .............................................................................................................. 10
The temperature sensor PT 500 / buzzer / devaporization opening /
safety thermostat ................................................................................................. 11
Steam generator / - cover / fan cover .................................................................. 12
4.6
5.
5.1
Operation of setting and control units .................................................................. 13
Operation of the WOEC oven control .................................................................. 13
13
5.1.1 Setting the time of day ......................................................................................... 13
13
13
5.2 Setting the oven functions .................................................................................... 14
5.3 Heatable drawer ................................................................................................... 24
6.
6.1
6.2
6.3
Technical equipment / general information .......................................................... 25
Fan after-running / appliance cooling ................................................................... 25
Setting time 4 seconds ........................................................................................ 25
Safety switch-off of the oven ................................................................................ 25
7.
7.1
7.2
7.3
Fault diagnosis / What to do when ...? ................................................................. 26
Problems when baking ........................................................................................ 26
Measures in case of malfunctions ....................................................................... 26
Service test .......................................................................................................... 27
8.
8.1
8.
8.1
8.2
8.3
8.4
8.5
Technical information / wiring diagrams .............................................................. 32
Electrolux Therma, 230 V, without drawer heating ............................................... 32
Technical information / wiring diagrams .............................................................. 32
Electrolux Therma, 230 V, without drawer heating ............................................... 32
Electrolux Therma, 230 V, with drawer heating .................................................... 33
Husqvarna, 230 V, with oven lights which can be switched off separately........... 34
Electrolux Therma, 400 V, with drawer heating .................................................... 35
Description of function ......................................................................................... 36
9.
9.1
9.2
9.3
9.4
9.5
9.6
9.7
9.8
Service information .............................................................................................. 37
Removing the two-part casing cover ................................................................... 37
Disassembly of switch panel ............................................................................... 37
Disassembly of WOEC control unit ..................................................................... 39
Disassembly of power supply .............................................................................. 40
Disassembly of steam generator ......................................................................... 41
Disassembly of temperature sensor / steam thermostat .................................... 47
Further information ............................................................................................... 49
ESD – electrostatic discharge and its effect on the control ................................. 49
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1.
1.1
General features
Models
Marke
Electrolux
Electrolux
Electrolux
Electrolux
Electrolux
Electrolux
Electrolux
Electrolux
Electrolux
Electrolux
Electrolux
Electrolux
Electrolux
Electrolux
Electrolux
Electrolux
Electrolux
Modell
EOB998w
EOB998k
EOB998x
EBSL7TC.3
EBSL7TC.3
EBSL7TC.3
EBKSL7TC.3
EBKSL7TC.3
EBKSL7TC.3
EBSL70TC.3
EBSL70TC.3
EBSL70TC.3
EBKSL7GTC.3
EBKSL7GTC.3AL
EBSL7GTC.3
EBSL70GTC.3
EBSL70GTC.3AL
PNC
941 047 059
941 047 060
941 047 061
944 211 967
944 211 968
944 211 969
944 211 970
944 211 971
944 211 972
944 211 973
944 211 974
944 211 975
944 270 000
944 270 001
944 270 002
944 270 004
944 270 005
Husqvarna
Husqvarna
Husqvarna
QCE541W
QCE541K
QCE541X
941 047 056
941 047 057
941 047 058
Therma
Therma
Therma
Therma
Therma
Therma
Therma
Therma
Therma
BOKD.2ST
BOKD.2ST
BOKD.2ST
BOD/60.2ST
BOD/60.2ST
BOD/60.2ST
BOD.2ST
BOD.2ST
BOD.2ST
944 211 796
944 211 797
944 211 798
944 211 799
944 211 800
944 211 801
944 211 879
944 211 880
944 211 881
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2.
2.1
Appliance data
Dimensions and capacities
Built-in ovens 55 cm
Outside dimensions
Height
Width
Depth
Depth with open door
Total weight, net
59.5 cm
54.8 cm
56.7 cm
100.2 cm
45.0 kg
Oven inside dimensions
Height
Width
Depth
Capacity
31.5 cm
40.8 cm
40.6 cm
52.0 l
Built-in ovens 60 cm
Outside dimensions
Height
Width
Depth
Depth with open door
Total weight, net
59.4 cm
59.2 cm
56.7 cm
100.9 cm
47.0 kg
Oven inside dimensions
Height
Width
Depth
Capacity
31.5 cm
40.8 cm
40.6 cm
52.0 l
Power absorption
Upper heat
Lower heat
Backplate heating element (hot air)
Pizza level
Steam generator
Small area grill
Large area grill
Turbo grill
Drawer heating
(appliances with heated drawer)
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1,000 W
1,000 W
2,400 W
3,400 W
1,800 W
1,900 W
2,900 W
1,900 W
500 W
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3.
Control elements
Built-in ovens
control panel with electronic timer
oven door handle
oven door with front pane of solid glass
drawer (only in appliances with heatable
drawer)
Control panel
Touching keys for functions
1
2
3
4
5
6
7
8
ON
OFF
child lock
meat probe heating
oven functions
+/- setting for temperature and time
cooking duration
switch-off time
9
10
11
12
13
14
15
drawer heating
timer / minute minder
time of day
pilot lamp drawer (only in appliances with
heatable drawer)
water drawer
hot plate controller, front right
water drawer
The touching keys for functions are designed as push buttons with rubber caps in all appliances of the
brand Therma. With all other appliances from the list of models (chapter 1.1), these keys are designed as
touch-sensor keys.
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4.
Component data
4.1
The electronic oven control (WOEC – control unit)
The WOEC central unit consists mainly of display, buzzer, temperature limiter /thermostat ? and
microprocessor.
This control, which
o
o
o
regulates the set temperature via the oven sensor,
possibly switches off the food thermometer,
is set by the two bit generators and the short-stroke keys,
selects the relay board.
buzzer
microprocessor
display
Temperature limiter (colour red)
temp.
temp.
temp.
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>= 105 °C oven switches off
>= 85 °C cooling fan switches on
<= 80 °C cooling fan switches off
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The electronic oven control
The display area
Symbols
service
child lock
oven functions
oven temperature
heating phase
meat probe cannot be used
meat probe
cooking duration
cooking end
timer/minute minder
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4.2
Power supply / relay board
This board consists of a number of relays, a transformer (1) and other components, which are
necessary for the power supply of the relays and the control board.
The safety relay (2) is a power relay with 20 A contacts and serves the protection of the power
circuit. This board receives the electrical control impulses transferred by the control board, and,
according to the impulses received, the concerned heating element resp. ventilator is powered. The
secondary relay circulating air is a service resp. secondary relay with a lower amperage (3 A at the
contacts), which selects the circulation fan (3).
The control relays (4) (max. 16 A at the contacts) select the different heating elements resp. the
fan; their number changes depending on the type of appliance.
1
2
3
4
transformer for low voltage power supply
main switch-off relay (safety relay)
secondary relay, circulation fan
supply relay for heating element and hot-air fan (control relay)
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4.3
The steam thermostat / relay steam
The cooking temperature with steam cooking is between 96 °C and 97 °C. The temperature
fluctuations are lower than 1 °C. It is measured by the steam thermostat and maintained
automatically by the electronic, in which the steam generator (chapter 4.6) is switched on resp. off.
steam thermostat
relay steam – switching on resp. off of actuators (see principle
diagram chapter 8.1 and actuators chapter 4.4)
position of the temperature sensor
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4.4
Actuators
Depending on the set function, the actuators open or close the devaporization valve and the water
vapor valve (see table below).
total view
They are selected by both relays steam.
devaporization valve
water vapor valve
devaporization valve
water vapor valve
steam cooking
closed
closed
Edevaporization
open
open
conventional
closed
open
The stroke is approx. 6 mm. The “zero” position of the ram ( 0V ) is the extended state.
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4.5
The temperature sensor PT 500 / buzzer / devaporization opening / safety thermostat
safety thermostat
temperature sensor PT 500
buzzer
acoustic indication “lack of water
in the steam generator”
(chapter 4.6)
devaporization opening + devaporization hose
Sound level: 75 dB( A )
Fig.: Electrical resistance of the sensor depending on the ambient temperature
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4.6
Steam generator / - cover / fan cover
The fan cover
Material:
chromed brass
The steam generator cover
Material:
chrome steel
The cover prevents the steam generator
from soiling.
The steam generator
Material:
stainless steel
Capacity:
0.7 l
Electric power: 1,800W
Seat for 2 thermo sensors (Klixons)
TR1/ F2: 120 °C signal sound lack of water
TR2/ F2: 200 °C steam generator switches
off
200 °C Klixon
The 200 °C Klixon can be recognized by the
unilaterally bent-up tag.
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5.
Operation of setting and control units
5.1
Operation of the WOEC oven control
5.1.1 Setting the time of day
After connecting the power supply, “12:00” flashes in
the display.
Wait until the display indicates 12:05.
1.
2.
Press key for a short time. The digits 12 00
light, “:” is flashing between the digits.
Set the current time of day within 4 seconds
using the key or . Otherwise, please press
the key anew for a short time.
After 4 seconds the flashing signal goes out. Thus the
time of day is fixed.
In order to correct the time (e.g. summer/winter time),
press key and change the settings by key or . In
this case the signal sound is without meaning.
5.1.2 First cleaning
Remove all objects out of the oven as well as possibly
existing stickers and protective foils at the appliance.
Do not remove the nameplate! To remove possible
traces from production, clean the oven before the first
use. Wash and dry oven, control panel and oven door
with a cloth that is moistened with some washing-up
water. In doing so, the oven lighting can be switched
on.
Press key .
5.1.3 First heating
The oven must be heated once before the first use.
Please take care of a good room ventilation.
1.
Switch on the oven with key .
2.
Select the function hot air with key by tapping it
repeatedly.
3.
Set 230 °C with key .
Operate the closed oven at this temperature for
approximately 60 minutes.
4.
Switch off the oven with key .
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5.2
Setting the oven functions
By tapping the key repeatedly it is possible to
select the oven functions. The order of functions
corresponds to the representation listed below.
Lighting
Separate setting e.g. for cleaning or
preparation of cooking processes and
switched on with all functions
Steam cooking
Steam generator, fixed setting 96 °C.
.
Interval cooking
Hot air 75% and steam generator 25% in
change, pre-setting 180 °C
Hot air
Backplate heating element and oven fan
pre-setting 170 °C
Pizza level
pre-setting 230 °C
Turbo grill
Small area grill with oven fan pre-setting
180 °C
Small area grill
Grill heating element
pre-setting 230 °C
Large area grill
Upper heat and grill heating element
pre-setting 230 °C
Upper / Lower heat
pre-setting 200 °C
Drying
Lower heat with oven fan
pre-setting 40 °C
Low temperature cooking
Backplate heating element with oven fan
fixed setting 120/80 °C
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Switching on/off the oven
1.
Switch on the oven with key .
Before setting function, temperature and time,
you must always press key . Except: timer
A short 3-fold signal sound indicates an error in
setting. In this case press key and start anew with
key . Oven function and temperature are switched on
with the electronic control and switched off manually
at the desired time with key or automatically
according to the time programme.
2.
Switch off the oven with key .
Setting the oven function
The functions steam cooking, interval cooking, hot air,
pizza level, grill levels and upper/lower heat can be
used alternatively for different dishes.
-
Select the intended function by tapping key
repeatedly. The symbol for the set function is
indicated in the display.
A practice-oriented temperature is assigned to every
function. If you do not change the temperature, the
function switches on after 4 seconds.
Oven temperature
By setting a function, the display indicates the
temperature pre-setting.
-
Set a temperature between 40 and 230 °C with
the or key. The selected temperature
keeps to be indicated in the display. With the
functions hot air, pizza level and upper/lower
heat, the symbol “heating phase” lights.
When the temperature has been reached, a signal
sound can be heard and the symbol “heating phase”
goes out.
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Timer/Minute minder
The timer can be used to observe and check
cooking durations and procedures in the kitchen,
even independent of the oven. It also can be set at
the same time with automatic timings. In this case
the display shows the timer setting, whereas the
automatic settings are running.
1.
2.
Press key . The timer symbol and the time
indication :00 are flashing in the display.
You can set timings from 1 minute to 9 hours
59 minutes using keys or .
Approximately 4 seconds after setting, the timing
starts, the timer symbol lights and the current time
is indicated. A 3-fold signal sounds points to the rundown setting. The timer symbol is flashing and the
signal sound is repeated every 15 seconds. It can be
set off by pressing key . After 2 minutes the signal
sound goes out automatically.
Automatic programmes
Important!
Before setting the automatic programmes you have to select function and temperature, otherwise it is not
possible to do any time settings for the automatic run.
Switch-off automatic
The programmes cooking duration and switch-off time start immediately (current time) with the process
of setting and end with the set time. The oven is on from the time of setting until the switch-off time.
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Setting the cooking duration
1.
2.
Press key . The display shows 00, “:” and the
symbol are flashing.
Set the desired cooking duration using keys
or .
For the cooking duration you can set times between 1
minute and 9 hours 59 minutes.
The display shows the remaining cooking duration
and the symbol lights.
Example:
Current time 11.15,
preparation time 45 minutes.
Press key and set 00.45 using the keys
, the oven is operating for 45 minutes.
or
Corrections:
Press key and change the cooking duration
as intended using the keys or .
A 3-fold signal sound reports the end of the cooking
process. The display now shows again the time of
day and the symbol for the selected function is
flashing.
Until the oven switches off automatically, a signal
sound is repeated every15 seconds, approximately
for 2 minutes.
-
Switch off signal sound and oven with key .
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Setting the switch-off time
1.
2.
Press key . The display shows the current
time of day, “:” and the symbol are flashing.
Set the desired switch-off time using the keys
or -.
The switch-off time cannot be set beyond 24 hours.
The display shows the switch-off time and the
symbol lights.
Example:
Current time 11:15,
the dish should be ready by 12.00.
Press key and set 12.00 using the keys
, the oven is in operation until 12.00.
or
Corrections:
Press key and change the switch-off time as
intended using the keys or .
A 3-fold signal sound reports the end of the cooking
process. The display now shows again the time of
day and the symbol for the selected function is
flashing. Until the oven switches off automatically, a
signal sound is repeated every 15 seconds,
approximately for 2 minutes.
-
Switch off signal sound and oven with key .
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Switch-on and –off automatic
Programming, which switches on the oven
automatically at a later time and switches the oven
off again automatically after the cooking duration has
run down.
1.
2.
3.
4.
Press key . The display shows 00, “:” and the
symbol are flashing.
Set the desired cooking duration using the keys
or
Now press key .
Set the desired switch-off time using the keys
or .
Example:
Current time 7.30.
Preparation time 45 minutes,
the dish should be ready by 12.00.
-
Set 00.45 using key
and 12.00 using key
and keys
and or
or
.
,
The oven switches on automatically at 11.15 (12.00
minus 00.45) and off again automatically at 12.00.
-
The display shows the switch-off time, “:” and
the symbol are flashing.
After 4 seconds oven function and lighting are
switched off, the display shows the symbol of the
selected function without frame, the current time of
day and the symbols and .
When the oven switches on automatically with the
desired function, the symbol in the display goes out
and the remaining cooking duration is indicated.
Check:
By pressing key you can check the set
cooking duration and with key the switch-off
time in the display.
Correction:
Press key or key and change the cooking
duration or switch-off time as intended using
the keys or .
A 3-fold signal sound reports the end of the cooking
process. The display now shows again the time of
day and the symbol for the selected function is
flashing.
Until the oven switches off automatically, a signal
sound is repeated every 15 seconds, approximately
for 2 minutes.
Switch off signal sound and oven with key .
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Steam-cooking programmes
Important!
The steam-cooking programmes must be set by the
automatic programme cooking duration or switch-off
time.
Due to the automatic approx. 5-minute devaporization
at the end of the cooking duration and due to the
heating time of approx. 2 minutes, settings below 10
minutes have little effect.
During the devaporization the door can steam up
easily.
During steam operation use only the grates.
When opening the door, steam is still escaping from
the hot dishes. The slight steam on the control panel
will disappear after a short time.
To prevent the accumulation of lime, you can use
decalcified water, e.g. from a commercial water filter
appliance.
Important!
Use only water.
When the water has been used up, a buzzer will
sound. Shortly after refilling water, the buzzer goes
out again.
Steam cooking
1.
Fill in water (approx.0.7 litres) into the water
drawer in the control panel, not directly into the
steam generator. The water is sufficient for
approx. 30 minutes.
2.
Switch on the oven with key .
3.
Select the function steam cooking with key .
4.
Press key or key and set the desired
cooking duration resp. switch-off time using the
keys or .
After approximately 2 minutes the first steam can be
seen. A simple signal sound indicates when the
cooking temperature of approx. 96 °C have been
reached. A 3-fold signal sound reports the end of the
cooking duration.
5.
Switch off signal sound and oven with key .
-
After the oven has cooled down, absorb the
remaining water with a sponge and afterwards
possibly re-wipe it with some drops of vinegar.
That the oven can dry completely, leave the oven
door open approx. 2 cm (jam a wooden scoop in).
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Interval cooking
The permanent change from 75% hot air to 25%
steam goes automatically.
1.
2.
3.
4.
Fill approx.0.7 litres water into the water drawer
in the control panel. The water storage is
sufficient for approx. 1 hour.
Switch on the oven with key .
Select the function interval cooking with key
and set the intended temperature using the
keys or .
Press key or key and set the desired
cooking duration resp. switch-off time using
keys or .
Proceed as with steam cooking.
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Meat probe
Cooking with the core temperature automatic
The meat probe is to measure the temperature in the
core of the dish during cooking. When the set
temperature has been reached, the oven will switch
off automatically.
1.
2.
Put the tip of the meat probe in the centre of the
thickest part of the cooking food and put baking
sheet, frying dishes or grill grate into the oven,
Put the connector of the meat probe up to the
handle into the plug-in jack in the right sidewall
of the oven and close the oven.
The display shows the symbol
3.
4.
.
After you have set function and oven
temperature, press key . The time display in
the display changes to centrigrade and the
temperature to 70° C.
Set the desired core temperature to between 30
and 99° C using the keys or .
Recommended core temperatures for:
Roast beef
Roast beef or fillet of beef
Rare
Medium
Roast Pork
Roast lamb
Roast veal
very rare
80° C
45° C
50° C
60° C
80 – 85° C
70 – 75° C
75° C
The display shows the symbol of function, the set
oven temperature (red), the symbol meat probe
and the core temperature of the cooking food.
The increase of the core temperature is indicated in
the display.
Check or correction
By pressing key it is possible to inquire the set core
temperature and, if necessary, to correct it using the
keys or . A 3-fold signal sound reports that the
pre-set core temperature has been reached. Until all
functions switch off automatically, a signal sound is
repeated every 15 seconds, for approximately 2
minutes.
-
Switch off signal sound and oven with key .
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Child lock
The oven control can be protected against unintended
switching on or adjusting by a safety lock. When the
child lock activated, playing children cannot do any
settings with the appliance, which may lead to
endangering. Use this feature even with longer
absence. The child lock can only be activated when
the oven is switched off.
Activation of child lock
When the child lock is activated you have to press the
key child lock simultaneously with the setting
processes. This is also valid for corrections.
1.
Press and keep pressed key , then press key
and keep both keys pressed for approximately 4
seconds, until the display shows the symbol .
The display shows the symbol
child lock is activated.
2.
to show that the
Switch off the appliance with key .
Deactivation of child lock
-
Press keys and simultaneously until the
symbol in the display goes out.
Service symbol
In case of malfunctions with the electronic control, the
display indicates the service symbol and an error
code instead of the temperature indication.
-
-
Switch off the fuse. Switch the fuse on again
after some minutes and try to switch on the
oven. When the service symbol lights again, an
error code is indicated.
The cooling of the appliance is running
continuously for safety reasons. If necessary,
switch off the appliance again by the fuse.
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5.3
Heatable drawer
You can preheat dishes in it.
1.
2.
Switch on the appliance with key and
the drawer heating with key . Pilot lamp 12
is on.
The temperature is regulating automatically.
At the same time you can use an automatic
programme; oven function and drawer heating are
switched together.
3.
Switch off the drawer heating with key , or
the drawer heating and appliance with key .
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6.
Technical equipment / general information
6.1
Fan after-running / appliance cooling
When the appliance has switched off, the housing fan continues operating, until the temperature has
sunk below 200° C. In case of less than 200° C, the housing fan is running approx. 10 minutes. The
remaining heat is indicated until the temperature has fallen to 40° C.
6.2
Setting time 4 seconds
After switching on and after all settings, the next setting step has to start within 4 seconds. The signal
sound confirms the expiry of 4 seconds. By pressing the corresponding key you can produce the
readiness for setting right away.
6.3
Safety switch-off of the oven
When setting function and temperature without a time limit, the safety switch-off switches off the oven
automatically, depending on the set temperature.
-
with temperature setting to 120° C after 12 hours
with temperature setting to 230° C after 6 hours.
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7.
Fault diagnosis / What to do when ...?
7.1
Problems when baking
3UREOHP
Baking or frying good is not
swelling up properly
3RVVLEOHFDXVH
wrong temperature setting
0HDVXUH
Check the set temperature in
accordance with the
information from the table
baking or frying good does
temperature too low
Increase temperature setting.
not get brown
Check the cooking condition,
possibly reduce time.
wrong material of baking tins Use only dark baking tins with
upper/lower heat.
baking or frying good gets too temperature too high
Check the set temperature in
dark
accordance with the
information from the table; if
necessary, reduce
temperature and increase
time.
baking good gets too dry
baking duration too long
Check the set temperature in
because of a too low
accordance with the
temperature
information from the table; if
necessary increase
temperature and reduce time.
baking good is too damp
due to a too high temperature Set the lower temperature
enough moisture could not be value of the table.
baked thoroughly
Too much liquid in the dough. Prepare dough with less
liquid.
7.2
Measures in case of malfunctions
3UREOHP
The oven does not function.
The oven does not get warm
despite switched-on function
and temperature.
Oven lighting does not
function.
Meat probe does not function.
Service symbol lights.
The time of day is flashing in
the electronic timer.
Spares Operation 08.01 A. B.
3RVVLEOHFDXVH
malfunction in power supply
automatic programme was
set with a later cooking start
bulb is defective
not plugged in correctly or
defective
depending on error code
power failure
- 26 -
0HDVXUH
check fuses
cancel automatic settings of
the electronic timer or set
them anew
exchange bulb
check the plug-in contact
inform the after-sales service
set time of day
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7.3
Service test
Test routines and their use
The control is equipped with several test routines which can be run partly manually or are running
automatically in the background.
Safety switch-off
The appliance is equipped with a safety switch-off which leads to an independent switch-off of the
appliance, when with different temperature settings the assigned time intervals are exceeded without any
changes of functions or temperature.
Examples: up to 250 °C 3 h
up to 230 °C 6 h
up to 120 °C 12 h
Service test
The manual test system of the control is composed of 6 test routines. To have access to these 6 test
routines, the control must be in an error mode and indicate the current error, or the time has to flash. This
will be achieved, when voltage is applied to directly. When it is necessary to have access to the test
routines during operation, the appliance must be disconnected from the mains for at least 1 0 seconds.
Basic setting
1
2
3
4
5
Time is flashing or current error is indicated.
Keep key minute minder and key 1 pressed simultaneously for 5 sec.
The display shows the routine number at the right, which can be set from 1-6 using the key minute
minder. If the routine number has been pre-selected and no entry is made within 5 sec., the control
switches to the pre-selected test routine.
If a test routine has been carried out, this routine can be left by actuating the OFF key.
Switching on a test routine, see 1.
Routine 1
in red
048
1
white
routine number
1 block 048
2 block 900
3 block 210
The code of 9 digits, which appears in 3 blocks of 3 digits one after the other, is the version number of the
appliance. This code informs about the product number of the appliance.
Example: Version
015 270 800 replace the zero as first digit by 9
315 270 800 this number must be identical with the nameplate
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Routine 2 see basic setting 1 – 5
1
in red
relay number
2
white
routine number
By pressing the minute minder key you can switch on resp. off the particular relays of the relay unit in this
programme. By pressing the key COOKING DURATION and COOKING END simultaneously you can
select the corresponding relay, max. 10, less depending on covering.
ATTENTION! The switching-on time should be short, as neither cooling fan nor hot air ventilator are
running and too long switching-on times could lead to damages.
1
2
3
4
5
6
7
8
9
10
M2
R 19
R3
M1
R4
R2
R1
fan
partial function steam
drawer heating
grill heating element
hot air
ring heating element
no function
partial function steam
lower heat
upper heat
K62
K67
K68
K61
approx. 100 mA
K63
K64
K65
K66
approx. 1.5 A
approx. 4.5 A
approx.100 mA
approx. 6 A
K69
K70
approx. 2.8 A
approx. 3 A
There is no reliable declaration for the partial function steam (K62 + K68), of what is measured. These
both relays had to react together. The oven ligthing is controlled via the main contactor. E4 and S1
Routine 3 see basic setting 1 – 5
oven sensor
red
33
30
1
white
2
white
routine number
food thermometer
white
Routine 3 shows the temperature of oven sensor and food thermometer (if it is plugged in).
Note: Both temperatures normally differ, because there are different measuring points.
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Routine 4 see basic setting 1 – 5
error code
red
000
4
white
routine number
When the power supply is interrupted after the detection of the malfunction, the information is cancelled
and with the execution of the test routine no. 4, the error code 000 appears. If a malfunction has been
detected, but the reason for that malfunction does not exist any longer (passing malfunction), as the
temperature dropped resp. the cooking thermometer was plugged off, the error code is noticed in the
memory and, until the power supply is not interrupted, the respective error code can be read via the test
routine no. 4.
Error messages (routine 4)
Description of function:
If it is asked, this module handles all arisen faults and executes an EEPROM check. When a defect
arises, an error register has access to the main loop of the processor control. This results in the control
switching from the current state to the error mode (except when it is in the test mode). If a new fault
arises, which has a higher priority than the previous one, only the new one (higher error code) is
indicated. The last occurred fault with the highest priority is saved and can be indicated at any time by the
service test mode 4. The defect with the highest priority is the EEPROM check error “F”.
Error code
Type of malfunction
000
001
002
003
no malfunction
food thermometer open infinite ohm
food thermometer short circuit 0 ohm
Arises when trying to switch on again the appliance
despite the error code indication 002 resp. 003.
Malfunction with the protective circuit.
Arises when the child lock is to be switched on, but
the circuit is defective.
not covered
The temperature measured by the oven sensor exceeds
that temperature which is set by the programming device.
Further checks of cooking cabinet probe and the
display board probe, except disconnection and short
circuit (checking error)
Temperature limiter with the board has triggered off.
Temperature limiter with the board is short-circuited.
Temperature limiter with the board is open.
not covered
not covered
oven sensor short-circuited
oven sensor disconnected
EEPROM error (microprocessor)
004
005
006
007
008
009
00 A
00 B
00 C
00 D
00 E
00 F
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Routine 5 see basic setting 1 – 5
This routine starts a run-through in the display, where all symbols and particular bars of the 7-segment
display are test.
Routine 6 see basic setting 1 – 5
temperature
code
012
red
6
white
routine number
This routine shows the temperature, which is measured by the limiter on the central unit, in a
hexadecimal code (see tables).
HEX
OO1
OO2
OO3
OO4
OO6
OO7
OO9
OOB
OOE
O12
O16
O1A
O2O
O26
O2C
Temperature limiter
control unit
-30
-25
-15
-10
-5
0
5
10
15
20
25
30
35
38
45
Spares Operation 08.01 A. B.
HEX
O34
O3C
O45
O4E
O58
O62
O6C
O76
O80
O8A
O93
O9C
OA4
OAC
OB3
- 30 -
Temperature limiter
control unit
52
55
60
65
70
75
80
85
90
95
100
105
110
115
120
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Trouble shooting
The trouble shooting is eased by error code test routines.
Troubles, which do not represent a direct danger for the user, are not detected by the control, e.g.
disconnected heating elements. Despite this test routines are a help for the trouble shooting, even in the
case they do not detect the malfunction.
Trouble shooting using the error code
Error code
Type of malfunction
000
no malfunction detected
001
exchange food thermometer
002
check cable connection of food thermometer
003
exchange food thermometer
004
check cable connection of food thermometer
disconnect power supply and execute test
routine 4 for trouble shooting
exchange power board
005
code not covered
006
Start test routine 2 for checking the relays, as the
over-temperature may be caused by a jamming of the
relay contacts of a heating element supply relay.
possibly exchange power board.
007
-
exchange oven sensor
exchange display board
008
-
Start test routine 2 for checking the relay of the
circulation fan, as the over-temperature
may be caused by a defect of the circulating air
ventilator.
Check the perfect operation of the
relay concerned; if it is defective, exchange the
power board.
check the wiring of the circulating air
ventilator
exchange circulation fan.
009
00A
exchange control unit board including display
00B
00C
-
code not covered
00D
00E
-
check wiring of the oven sensor
exchange oven sensor
00F
-
exchange control unit board including display
NOTE ! The error code 003 can also arise with a wrong switching sequence. To reset to normal
operation, first press key O and then key I.
Spares Operation 08.01 A. B.
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Spares Operation 08.01 A. B.
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Electrolux Therma, 230 V, without drawer heating
K68
K69
K70
8.1
K65
K66
main contactor
relay for cooling fan
steam relay
relay for grill heating
element
relay for circulation motor
relay for ring heating
element
steam relay
relay for upper heat
relay for lower heat
actuator, devaporization
actuator, water vapor
vent
steam thermostat
oven light, back
oven light, side
protective temperature
limiter
120 °C limiter
200 °C limiter
buzzer
relay
relay
circulation motor
cooling fan
upper heat
lower heat
grill heating element
ring heating element
steam generator
Technical information / wiring diagrams
K60
K61
K62
K64
WOEC
F2
F2
H9
K1
K2
M1
M2
R1
R2
R3
R4
R5
B2
E1
E2
F1
A1
A2
Legend
8.
599 51 19 69
EN
Spares Operation 08.01 A. B.
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K60
K61
K62
K63
K64
K65
K66
K68
K69
K70
WOEC
A1
A2
B2
E1
E2
F1
F2
F2
H9
K1
K2
M1
M2
R1
R2
R3
R4
R5
main contactor
relay for cooling fan
steam relay
relay for drawer heating
relay for grill heating element
relay for circulation motor
relay for ring heating element
steam relay
relay for upper heat
relay for lower heat
actuator, devaporization
actuator, water vapor vent
steam thermostat
oven light, back
oven light, side
protective temperature limiter
120 °C limiter
200 °C limiter
buzzer
relay
relay
circulation motor
cooling fan
upper heat
lower heat
grill heating element
ring heating element
steam generator
Legend
8.2
Electrolux Therma, 230 V, with drawer heating
599 51 19 69
EN
Spares Operation 08.01 A. B.
- 34 -
K60
K61
K62
K64
K65
K66
K68
K69
K70
WOEC
A1
A2
B2
E1
E2
F1
F2
F2
H9
K1
K2
M1
M2
R1
R2
R3
R4
R5
main contactor
relay for cooling fan
steam relay
relay for grill heating element
relay for circulationmotor
relay for ring heating element
steam relay
relay for upper heat
relay for lower heat
actuator, devaporization
actuator, water vapor vent
steam thermostat
oven light, back
oven light, side
protective temperature limiter
120 °C limiter
200 °C limiter
buzzer
relay
relay
circulationmotor
cooling fan
upper heat
lower heat
grill heating element
ring heating element
steam generator
Legend
8.3
Husqvarna, 230 V, with oven lights which can be switched off separately
599 51 19 69
EN
Spares Operation 08.01 A. B.
- 35 -
K60
K61
K62
K64
K65
K66
K68
K69
K70
WOEC
A1
A2
B2
E1
E2
F1
F2
F2
H9
K1
K2
M1
M2
R1
R2
R3
R4
R5
R17.2
main contactor
relay for cooling fan
steam relay
relay for grill heating element
relay for circulationmotor
relay for ring heating element
steam relay
relay for upper heat
relay for lower heat
actuator, devaporization
actuator, water vapor vent
steam thermostat
oven light, back
oven light, side
protective temperature limiter
120 °C limiter
200 °C limiter
buzzer
relay
relay
circulation motor
cooling fan
upper heat
lower heat
grill heating element
ring heating element
steam generator
dropping resistor oven light
Legend
8.4
Electrolux Therma, 400 V, with drawer heating
599 51 19 69
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8.5
Description of function
After switching on, the relay K60 closes and the display shows the oven symbol. At the same time the
oven lighting goes on.
The cooling fan (relay K61) is switched on with a delay of three minutes.
After selecting the functions, following relays are active:
steam cooking
interval cooking
hot air
pizza level
turbo grill
infrared grill
large area grill
UH/LH
drying
lower temperature cooking
K 68, K 62
K 68, K 62, K 65, K 66
K 66, K 65
K 66, K 65, K 69
K 64, K 65
K 64
K 64, K 70
K 69, K 70
K 70, K 65
K 66, K 65
K 69 below 80°C (K1,K2)
K 68 and K 65 alternating (K1,K2)
K 69 during heating phase
K 70 clocks
K 69 during heating phase
K1 and K2: These two relays are used to select the actuators. When switching on a steam function, the
actuator A2 is applied to 230 volt and the steam vent closes (K1 and K2 under voltage). 5 minutes before
the end of the steam cooking, both relays K1 and K2 are switching. The actuator A2 is without voltage
and the steam vent opens. The actuator A1 is now connected with 230 volt and opens the devaporization
valve. After the time programme has run down, all steam components are without voltage again.
Spares Operation 08.01 A. B.
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9.
Service information
9.1
Removing the two-part casing cover
Unscrew both fixing screws right and left.
Take off the front half of the cover.
9.2
Disassembly of switch panel
Draw off the clipped handle of the water drawer.
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The switch panel is fixed by four springs, two each
at the right and left side of the panel support.
Grasp the switch panel right and left and draw it off
horizontally.
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9.3
Disassembly of WOEC control unit
The WOEC control unit is hinged at the bottom at
the panel support and fixed by two locking hooks at
the upper side right and left each.
Press both locking hooks down carefully and lift
them out from the panel support towards the inside
of the appliance.
Spares Operation 08.01 A. B.
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599 51 19 69
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9.4
Disassembly of power supply
Unscrew the four fixing screws.
After you have drawn off the lines it is possible to
remove the power supply from the inside of the
appliance.
Spares Operation 08.01 A. B.
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9.5
Disassembly of steam generator
At the bottom side of the oven there is a service
opening for the disassembly of the steam
generator, which can be opened by removing the
four fixing screws.
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Loosen the ground wire connection and draw off
the lines of both Klixons and the heating element.
Spares Operation 08.01 A. B.
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Remove the water inlet at the steam generator.
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599 51 19 69
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Disassemble both Klixons by removing the upper
and lower fixing screw.
In the oven muffle there are six boreholes, through
which the stud bolts being at the steam generator
are stuck. The steam generator is fixed firmly by
means of a bolster and six hex nuts.
Unscrew the six fixing screws.
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Loosen the fixed position by hitting firmly on the
bottom of the steam generator with a rubber
hammer.
Now the steam generator can be removed towards
the oven cave.
Spares Operation 08.01 A. B.
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Spares Operation 08.01 A. B.
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599 51 19 69
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9.6
Disassembly of temperature sensor / steam thermostat
Remove the back casing cover by unscrewing the
fixing screws.
Spares Operation 08.01 A. B.
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Disassemble the cooling fan by removing the right
and left fixing screws.
The seat of the temperature sensor is below the air
duct next to the steam valve.
It is held by a rubber collar, from which it can be
removed without disassembling further
components.
Spares Operation 08.01 A. B.
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9.7
Further information
-
As with the necessary mechanical processes there is the danger of injury by sharp sheet metal
parts, it is recommended to put on safety gloves.
-
When you get a spare part with new seals when exchanging defective components, it is absolutely
necessary to exchange these seals too.
-
The installation of the appliance (assembly and electric connection) is only to be made through
specialised stuff.
-
The utmost caution is advised when opening the oven door to check the cooking food during steam
cooking, as hot and damp steam will leave the cave when opening the door.
Attention! With interventions in the appliance observe the safety rules!
9.8
ESD – electrostatic discharge and its effect on the control
As the interface of the control unit is open, the service technician, in case of a repair, has to pay attention
that there will be a balance of potential via the casing of the appliance (touch it) to neutralise possible
charges and not to damage the control unit. The same attention has to be paid to the service control
which should only be taken from its ESD protective foil, after there was also a balance of potential at the
appliance, before assembling the unit.
Note:
This is not to inform on the theoretic backgrounds of charging and discharging processes – they are
simply not interesting in this case. The practical effects are more important. We can experience (feel)
them every day, when there is a charge balance if touching a door handle.
What happens during a charge balance with the semiconductor components (part of an electronic
assembly)?
The charge balance occurs via the inner structures of the component. A component must not necessarily
be damaged immediately; much worse are possible later failures due to damaged inner connections
which arise only when loaded by temperature or power.
On the one hand, however, almost all sensitive semiconductor components (e.g. MOS circuits) have
been improved by integrated protective measures, on the other hand the inner structures of such parts
are today essentially smaller than, for example, 10 years ago, which in turn increases their sensitivity.
Attention:
Which components are endangered in case of services?
All components which have checking / control inputs (door switch, food thermometer ...), open conductor
paths and free accessible processors.
Concrete examples:
timers with inputs for food thermometer and door switch
timers, the control processors of which can be touched (for reasons of cost casing only formed as
half shell)
WOEC control unit
Spares Operation 08.01 A. B.
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599 51 19 69
EN