Blomberg BWOS 24102 SS User manual

BARBAROS PLATFORM
BUILT IN OVENS
SERVICE MANUAL

BARBAROS PLATFORM BUILT IN OVEN
CONTENTS
Chapter 1: Components /4-5
Chapter 2: Disassembly
procedures /6-18
Replacement of the knob /6
Removal of the control panel /6
Replacement of the front door /7
Replacement of the front door
inner glass /7
Replacement of the handle /7
Replacement of the front door outer glass /8
Replacement of the hinge
housing group /8
Replacement of the hinge housing /8
Removal of the top wall /9
Replacement of the commutator/9
Replacement of the digital timer
(For suitable models) /10
Replacement of the analog timer
(For suitable models)/10
Replacement of the thermostat /11
Replacement of the steel rack /12
Replacement of the sliding rack /12
Removal of the rear wall /12
Removal of the side wall /12
Replacement of the cooling fan /13
Replacement of the grill heating element /13
Replacement of the thermal cut-out /14
Replacement of the oven heating element /14
Replacement of the Turbo heating element /15
Replacement of the turbo motor /15
Replacement of the control panel lamps /16
Replacement of the Terminal Block /16
Replacement of the oven lamp /17
Replacement of the rotisserie motor
(For suitable models) /17
Chapter 3: Possible failures and
remedies /18-23
Troubleshooting the timer /18
Troubleshooting the heating element /19
Troubleshooting the rotisserie motor/19
Troubleshooting the oven lamp /20
Troubleshooting the thermostat /20
Troubleshooting the turbo motor /21
Troubleshooting the commutator /21
Troubleshooting the terminal block /22
Troubleshooting the power warning
or thermostat lamp /23

!
WARNING
For personal safety, make sure that
all electrical connections to the oven
have been disconnected before
starting the removal procedure to
replace parts.

Page 4
Grill heating element
It is the heating element which
is activated by the control knob
and used for grilling in electirical and
multi-functional ranges. It is controlled by the thermostat
and the commutator under the control knob and
provides heat to the oven from the oven body upper
part.
Oven heating element
It is the heating element which is controlled
by the commutator under the control knob
and providing the possibility of cooking
food inside the oven body at desired
temperatures with the assistance of the electrical
thermostat in electrical and multi-functional ranges. It
is located under the oven body, between the oven
body and oven bottom support sheet.
Turbo heating element
It is the heating element located on the
oven body rear wall in turbo and multi-
functional ranges. The air is sucked
through the holes with the assistance of
the suction holes found on this surface, and blowed
out from the air holes which are located next to the
suction holes. The heated air performs the cooking
operation passing through the upper and lower tray
surfaces. The turbo heating element and the fan are
controlled with the oven control knob located on the
control panel.
Electrical thermostat
It is the electrical component that adjusts
the heating elements to the desired
operating temperature when the releated
contol knob is turned on.
Turbo motor
It operates alone itself at defrost
position in turbo and multi-functional
ranges. At the positions it operates
together with the turbo heating
element, it provides that the heat on
the turbo heating element is uniformly spreaded into
the oven body with the assistance of the turbo motor
fan.
Rotisserie motor
It operates together with the grill heating element
at grill position in electri cal and
multi-functional ranges, whereas it
is controlled by a separate knob at
gas ranges. The rotisserie function
can be performed by attaching the
turn spit bed into the rotisserie motor. The motor
operates with 4 W power and 2 rpm stroke.
Terminal block
It is the connection element where the supply cord
and the cables inside the oven are
attached to. The cables which are
connected to the components inside the oven are
distributed from the terminal block.
Oven lamp
It is controlled by the commutator connected to the
control knob and illuminates the inside of
the oven body.
Mechanical timer
Mechanicaal timer is used for setting cooking time.It
will ring after the end of the time set.
Chapter 1/Components
Chapter 1/Components
BARBAROS BUILT IN OVEN

Digital timer
Timer shows the time of the day and is
used for time depending cooking. Electrical
current from the main to the oven components is
controlled by digital timer. The timer should be adjusted
in order to operate the oven.Diffrent types of cooking
can be applied depending on the digital timer type.
Timer can be also se as an alarm clock.For Details of
alarm clock; user manual of the oven should be
checked.
Page 5
Control panel lamps
Control panel lamps are used as
thermostat and power warning lamps in
electrical, turbo and multi-functional ranges. The
thermostat lamp remains lit as long as the temperature
inside the oven is below the adjusted setting. The oven
operates until the adjusted temperature setting has
been reached. Once the temperature inside the oven
reaches the adjusted level the thermostat cuts out the
circuit and the thermostat lamp turns itself off. The
thermostat lamp is again on when the thermostat starts
to operate once the temperature inside the oven drops
below the setting. Thus, the temperature is kept at the
adjusted level during cooking. The color of the
thermostat lamp is yellow. The power warning lamp
is red and indicates that the oven or the hot plate(s)
are on.
Commutator
It provides the operation of the components
inside the oven, like hotplates, heating
elements, oven lamp, fan motor, and
rotisserie motor, at the desired positions
in electrical, turbo and multi-functional
ranges. It is connected to the control knobs and
operates with the action of them. Different types of
commutators exist at various settigs. On electrical and
turbo ranges, an electrical thermostat is connected to
the rear of the commutator, whereas in multifunctional
ranges the commutator operates alone.
analog timer itself may be set between 0-180 minutes.
BARBAROS BUILT IN OVEN

1. Unscrew two screws mounted on both right and
left side of the panel.
Pull knob to yourself to remove.Push the new knob
against the control panel.Rounded surfaces on the
inner surface of knobs shaft and outer surfaces of
commutators shaft must overlap.
2. Lift the control panel until pins become free form
the housing.Pull the control panel by taking care of
cables.Pull the cable sockets away form the panel.
Replacement of the knob
BARBAROS BUILT IN OVEN
Chapter 2/Disassembly procedures
Chapter 2/Disassembly procedures
Removal/Replacement of the
control panel
Page 6

Replacement of door hinges
1.Open the oven door.
2.As shown in the picture,pull down the hinge clips
on both sides of the oven door.
4.Remove the oven door by pulling it away from the
oven as it is in the half open position.
Sleps carried out during removing process should
be performed in reverse order to reassemble the
oven door.
1.After removing the door; unscrew two shown
screws placed on two sides of oven.
2.After unscrewing the screws the hinges will become
free.Remove the hinges pulling away from the oven.
Replace the existing ones with new ones.
Important: Don't forget to close the hinge clips when
reassembling the door.Other wise,the door can’t be
closed.
3.Position the door half open as shown.
BARBAROS BUILT IN OVEN
Replacement / Removal of the front door
Page 7

Replacement of oven door
Before replacement of the oven door disasemble
oven door according to instructions in user manuel.
Before remove the bottom sheet metal unscrew the
screws both sides of the bottom sheet metal.
Remove door inner glass by apparatus for removing
the inner glass.Insert apparatus to signed gap on the
glass and move the glass up.
Match fixing pins and theır holes and press glas when
fixing the inner glass.
Detachable 2 glass oven door replacement
Replacement of oven door
BARBAROS BUILT IN OVEN
Page 8
Detachable 2 glass oven door replacement

Replacement of oven door hinge
Unscrews placed bottom of the oven door.
Remove plastic parts (profiles) figure as shown.
Ventilation decors can be changed by apparatus for
removing the inner glass.
Glass fixing locks can be replaced.
BARBAROS BUILT IN OVEN
Page 9
Replacement of oven door
Detachable 2 glass oven door replacement Detachable 2 glass oven door replacement

Replacement of detachable 4 glass oven door
Please seal on door upper sheet metals shown.
Remove of the plastic part mounted upper side of
the oven door by pulling yourself.
Lift in mast glass up then remove the glass by pulling
in direction as shown in the figure.Repeat this
operation to remove the second and third inner glass.
Replacement of detachable 4 glass oven
door
BARBAROS BUILT IN OVEN
Page 10
Replacement of oven door Replacement of oven door
Before replacement of the oven door disasemble
oven door according to instructions in user manuel.

Replacement of inner door hinge
Replacement of inner door
Important: It is important in mounting all inner
glasses to position the bottom corners of glasses in
to the bottom plastic housings properly.
Screw glass carrying plastic to locking springs.
Fix,group to door left / right profiles.
Bands are sticked to inmast door mtal sheet on both
sides of the door profiles.
BARBAROS BUILT IN OVEN
Page 11
Replacement of detachable 4 glass oven
door
Replacement of detachable 4 glass oven
door

Replacement of oven handle
Remove the handle by pulling away from the oven
door.
Disassambling the upper cover sheet
First disassemble the oven door.Use an allen key sited
2 to remove the handle screws placed two sides of
the handle.
Unscrew 10 screws placed on the upper cover sheet.
Pull the free sheet to wards the rear of the oven and
lift to remove.
BARBAROS BUILT IN OVEN
Page 12

Replacement of comutators
1.Firstly,remove the knobs and disassemble the control
panel.
Unplug the electrical connection plugs of the comutator
to be replaced.
3. Unbend the pins of control panel.Demount the pin
of comutator plasic placed in to hole on the control
panel.Turn the comutator plastic in clockwise direction
to the plastic from demount.
BARBAROS BUILT IN OVEN
Page 13

Replacement of Oven Thermostat
BARBAROS BUILT IN OVEN
Replacement of Thermostat Bulb
First remove the thermostat knob and disassamble the
conrol panel.Unbend the panel pin and demount the
thermostat plastic pin from the control panel.Turn
commutator plastic clockwise direction to remove the
group from the panel.
Thermostat bulb is placed on the right top of the rear
wall of the cavity.To reach thermostat bulb,upper and
rear cover sheets should be demounted unscrew the
screw of bulb support sheet.
Pull the sheet away from the cavity.
Pull the bulb away from the support sheet.Replace
the bulb with new one and do operations of
demounting in reverse order to assemble the new
bulb.
View of the bulbin oven cavity can be seen in the
picture.
Replacement of Oven Thermostat
Page 14

Replacement of the oven thermostat
First remove the thermostat knob and disassamble the
control panel.Unbend the panel pin and demount the
thermostat plastic pin from the control panel.Turn
comutator plastic clockwise direction to remove the
group from the panel.
Replacement of cooling motor
Replacement of cooling sheet group
BARBAROS BUILT IN OVEN
To reach the cooling motor upper cover sheet should
be demounted.Cooling up for is placed on the upper
wall of oven cavity.Turn the cooling motor and support
sheet group clock wise direction to demount.
Unscrew 2 screws which hold the ventilation sheet
metal,are placed the cavity inner ceiling.
Ventilation sheet metal could be removed by pulling
it as shown in the figure.
First replace the upper cover sheet.
Page 15

Disassembling Rear Cover Sheet
Oven back wall will be side opening position.
Replacement of ventilation thermostat
Firstly remove oven cover upper sheet metal.
Ventilation thermostat is fixed to ventilation hole by
two screws.
Change / remove ventilation thermostat by unscrew
the screws.
BARBAROS BUILT IN OVEN
Unscrew 8 screws lased for mounting the rear cover
sheet and remove the sheet.
Page 16

Disassembling Rear Cover Sheet
Disassembling side walls
Unscrew 7 screws and remove the free side wall.
This rear back wall can be dismount from notched.
Replacement of the profiles
Dismount the side wall in order to remove the front
side profiles.
Afterwords,unscrews the three screws replace by the
new one.
Replacement bottom plate
Unscrew ten screws on the oven floor sheet.
BARBAROS BUILT IN OVEN
Page 17

Replacement the switch
Switch
Top wall should be removed in order to diassemble
the switch.
Afterwords,displaced the switch from oven side wall.
Pull the switch and the change by the new one.
Unscrew the screw which hold switch to side wall.
Remove the oven floor sheet as shown in the figure.
BARBAROS BUILT IN OVEN
Page 18
Replacement bottom plate Replacement the switch

Replacement of top heating element
2. Unscrew 2 screws on rear side of the oven.
Dismount rear and top cover sheets.
1.Dismount electrical connections.
3. Open front door and unscrew 2 screws in side the
oven cavity.
BARBAROS BUILT IN OVEN
The replacement of cataliytic side walls
Firstly remove the side rachs,by unscrew the side
racks bolt.
Replace by the new one and place the side rocks.
Page 19