service manual cookers - McCulloch Spares, Parts & Accessories

SERVICE MANUAL
COOKERS
Built-in hobs
Induction
„TEIS“
© Electrolux Distriparts
Muggenhofer Straße 135
D-90429 Nürnberg
Germany
Fax +49 (0)911 323 1022
DGS-TDS-N
Edition:
02.06
Publ.-Nr.:
599 525 284
685
EN
Inhaltsverzeichnis
1.
ESD=electrostatic discharge ............................................................................ 3
2.
2.1
2.2
2.3
2.3.1
2.3.2
Software specifications, Functions ................................................................... 4
Sample illustration: Induction hob ...................................................................... 4
Control panel ..................................................................................................... 4
Symbol,display and keys explanation ................................................................ 5
Touch control sensor fields ............................................................................... 5
Displays ............................................................................................................ 5
3.
3.1
3.2
Functions of appliance ...................................................................................... 6
Basic functions/Child safety/Power-function ..................................................... 6
Safety cutoff ...................................................................................................... 7
4.
Functional parts - Component data, installation situation, ................................. 8
dismantling ........................................................................................................ 8
General view ...................................................................................................... 8
Contact switch and input electronics (UI) .......................................................... 9
Induction coil .................................................................................................... 10
The induction module ...................................................................................... 11
4.1
4.2
4.3
4.4
5.
5.1
5.2
5.3
5.4
5.5
5.6
5.7
5.8
5.9
5.10
Alarm Symptoms ............................................................................................ 12
Appliance not functioning at all, cannot be switched on .................................. 12
Individual cooking zones do not work (partially) or work incorrectly or
cannot be used ................................................................................................ 13
Alarm message „E“ ......................................................................................... 14
Other Alarmsymptoms .................................................................................... 15
Connection guideline ....................................................................................... 16
Display ............................................................................................................ 17
Inductions module test .................................................................................... 17
Pot identification information ........................................................................... 18
Touch Control Cooking Hobs Information ........................................................ 19
Demo mode / Self test (Service mode) / Alarm Menu ..................................... 20
6.
6.1
6.2
Wiring diagrams .............................................................................................. 21
Example-slotted plan ....................................................................................... 21
Example-circuit diagram ................................................................................. 22
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1.
ESD=electrostatic discharge
As the single electronic interfaces are not protected internally against statical electricity and are
partially open, you must pay attention to that, in case of a repair, there will be a potential
compensation via the housing of the appliance (touch it) in order to neutralize a possible
charging and to prevent a damaging of the affected electronic interface.
You also have to be careful with those electronics delivered as spare parts, which have to be put
out of the ESD protective package only after a potential compensation (discharge of possible
statical electricity).
If a potential compensation with an existing static electricity is not executed, it does not mean
that the electronic is demaged directly. Consequential damages may result due to the damaging
of internal structures which arise only in case of load through temperature and current.
Endangered are all assembly groups which are provided with control entries, wire paths lying
open and free-accessible processors.
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2.
Software specifications, Functions
2.1
Sample illustration: Induction hob
2.2
Control panel
The symbol of the Touch control sensor field depend on the various brands, however their
functions are the same.
Cooking Zone displays, Timer Function
Display
Cooking level selection
Timer Display
Timer
On/Off with control lamp
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Power function
Interlock
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2.3
2.3.1
Symbol,display and keys explanation
Touch control sensor fields
Sensor field
2.3.2
Function
On/Off
Appliance On and Off connection
increase settings
Increase cooking level/time
reduce settings
Reduce cooking level/time
Timer
Timer choice
Interlock
Control panel lock/unlock
Power
Power function Switch on/off
Displays
Display
Description
Cooking area is switched off
Cooking levels
Cooking levels are set
Fault
Function failure occurs
Pot detection
Cooking tablewear is unsuitable or too
small and/or it is not put on.
Residual heat
Cooking area is still warm
Child safety function
Interlock/Child safety is on
Power
Power-function is switched off
Safety cutoff
Safety cutoff is active
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3.
Functions of appliance
3.1
Basic functions/Child safety/Power-function
Control panel
Display/signal
( I ) Touch for 2 seconds
( I ) Touch for 1 second
"0"/"H", Control lamp lights up
"H"/none, Control lamp turns off
Switch on/off the appliance
Switch on
Switch off
After switching on, a cooking level or a function has to be set within 10 seconds,
otherwise the appliance switches off automatically.
Set cooking level
Boost
Minimise
Switch off
( + ) Touch
( - ) Touch
Touch ( + ) and ( - ) simultaneously
"1" to "9"/"P"
"9" to "0"
"0"
Locked/unlocked control panel
Switch on
Switch off
Touch (lock)
Touch (lock)
"L" (for 3 seconds)
Pre-set cooking level
When switching off the appliance, the lock will switch off automatically.
Switch on the childproof lock
Step 1
Step 2
Step 3
( I ) Switch on the appliance
Touch (lock) until the signal sounds
( + ) Touch
"0"
Acoustic signal
"L"
Appliance swiches off. The childproof lock is switched on.
Override the childproof lock
Step 1
Step 2
( I ) Switch on the appliance
Touch ( + ) and ( - ) simultaneously
"L"
"0"/Acoustic signal
Appliance can be used regularly till the next deactivation of the appliance.
The childproof lock can therewith be switched off for an isolated cooking act;
afterwards it remains active.
Switch off the childproof lock
Step 1
Step 2
Step 3
( I ) Switch on the apparat
Touch (lock) until the signal sounds
( - ) Touch
"L"
Acoustic signal
Appliance switches off. The childproof lock is switched off.
Switch on/off power function
The power function ( P ) provides additional capacity for the leading induction cooking zone, e.g. to bring water to boil quickly.
The power function will be activated at the cooking zone, u front and to the left, in 8 minutes, and at thecooking zone, up front and to the right, in 5 minutes.
After this the induction, the cooking zone switches automatically back to cooking level 9. If the power function stops,
the cooking zones change back automatically to the pre-set cooking level.
Switch on
Switch off
( P ) Touch
( P ) Touch
( - ) Touch
"P"
"P"
"9"
Power Management
The cooking zones have a maximal capacity. If this service type exceeds by switching on the power function, the power management
reduces the cooking levels to another cooking zone. The display of this cooking zone changes betwee the pre-set and maximum
possible cooking level for one minute. Afterwards the actual cooking level will be indicated.
Example:
Cooking zone most recently switched on
Set cooking level
"P"
Other cooking zones
Set cooking level
9
Display/actual cooking level
6 alternately with 9/6
If the power function stops, the cooking zones change bac automatically to the pre-set cooking levels.
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3.2
Safety cutoff
Cooking field:
Control panel:
-
If you do not set a cooking level in a cook zone within approx. 10 seconds
after switching on of the cook field, the cook field switches off
automatically.
-
If one or more sensor fields are covered longer than 10 seconds, e.g. by
a pot placed on it, a signal sounds and the cook field switches off
automatically.
-
If all cook zones are switched off, the cook field switches off
automatically approximately 10 seconds later.
Humidity (e.g. a wet cloth) or over-cooking liquid on the control panel switches all
cook zones off immediately.
Induction cooking zones: -
During overheating (e.g. an empty-cooked pot) the cook zone switches
off automatically. „- “is displayed. Before renewed use the cook zone
must be set to „0 “and be cooled down.
-
If suitable table-ware is used, „F“ flashes in the display and after 10
minutes the display of the cook zone switches off.
-
If one of the cook zones is not switched off after a certain time or if the
cook stage is not changed, the appropriate cook zone switches off
automatically.
cooking level
The cooking zones are disconnected with:
1-2
3-4
5
6-9
6 Hours
5 Hours
4 Hours
1,5 Hours
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4.
Functional parts - Component data, installation situation,
dismantling
4.1
General view
Contact switch and
holding frame UI
Insulation
Sensor plate aluminium
Input electronic (UI)
Sensor
Insulation
Induction coil
Support spring
Module of induction
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4.2
Contact switch and input electronics (UI)
The contact switch is glued directly on the glass ceramic and over a foil conductor connected
with input electronics. The UI is fixed in a plastic framework, which is also glued directly onto on
the glass ceramic.
Fig. 1
Fig. 2
The trough framework is screwed onto the trough bath with star Torx TX20 screws. Before the
glass ceramic can be removed after the complete loosening of the star screws, it must be lightly
raised at the front, so that both 3-pole connection cable input electronics/ induction module can
be taken off (fig. 1).
Fig. 3
Input electronics are configured and provided with a standard software. After extracting from the
holding frame and taking the foil conductor off input electronics can be removed.
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4.3
Induction coil
The spare part induction coil consists of the coil body, the white insulation and a coil holder.
Fig. 1
Fig. 2
Fig. 3
The induction coils are held with springs, which must be locked into the induction module carrier
(fig. 1). The nominal reduction rates in the trough (fig. 3) serve as position indicators.
Performance table
Chosen
% of the maximum Cooking zone Cooking zone Cooking zone
cooking level performance
140mm
180mm
210mm
1
2
3
4
5
6
7
8
9
P
3.0%
5.5%
10.5%
15.5%
21.0%
31.0%
45.0%
64.0%
100.0%
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42
77
147
217
294
434
630
896
1400
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54
99
189
279
378
558
810
1152
1800
2800
66
121
231
341
462
682
990
1408
2200
2800
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4.4
The induction module
Fig. 1
With this series the induction modules are implemented as double modules, i.e. an induction
trough with four induction cook places has 2 induction modules (fig. 1). The induction module is
provided with a standard software and does not have not to be programmed.
Fig. 2
Fig. 3
The induction module of the trough is held with four sheet metal noses (fig. 2), in each case two
above and below, which are led through the induction module carrier and interlocked afterwards.
Technical data
Main voltage:
Rated frequency:
Max. output:
Output per cooking area max.:
Total output:
Ambient temperature max.:
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230V
50/60Hz
3.6kW
2.8kW
3.6kW
T85
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5.
Alarm Symptoms
5.1
Appliance not functioning at all, cannot be switched on
Alarm
Symptom
House fuse
triggered
Cooking
field cannot
be switched
on.
Cooking
Hob
Display
None
Possible Alarm
Cause
Alarm Remedying
Incorrect connection at
the power connection
terminal.
Final induction phase
defect.
No mains voltage or
incorrect connection (1
phase missing ->no
control voltage; N not
connected to terminal 4
and 5 not connected)
Connector of the cable to
the Touch Control
/Display not inserted.
Fuse strip conductor burnt
out and/or final induction
phase defect
Touch control defect.
Test the pin assignment and
230VAC between N , Lines and
earth on the supply line.
See chapter Testing Power
Component
Test the pin assignment and
230VAC , Neutral, Line(s) and
earth. Both of the "N“s should be
connected to wall terminals.
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Test connector at the filter and
Touch Control. Reapply the mains
voltage.
See Chapter Testing Power
Component
If 5VDC exist and power
component already replaced:
replace the UI. Ensure that the
Touch pcb is well glued to the
glass, and that the connection wire
is well inserted.
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5.2
Individual cooking zones do not work (partially) or work incorrectly or cannot be used
Alarm Symptom
Pan does not
heat up.
Cooking
Hob
Display
Normal cooking
phase
Flashing
"F“
Possible Alarm
Cause
Alarm Remedying
Pan in the border area of the pan
detection and only works with low
power
Use different pot or this pot
on a smaller hob. See
Chapter Pot Detection
Information
Check whether the pots or
pans are suitable for
induction. See Pot Detection
Information
Check whether the coil lines
are connected and the torque
has been adhered to.
Check whether the coil is
applied to the glass ceramic
and whether the glass was
pushed was pushed down
when screwing in position.
See Chapter demo mode
Pan not detected.
Coil not correctly connected.
Distance between coil and glass
ceramic too large.
No power on all
hobs
Individual buttons
cannot be used
or cannot always
be used.
Normal cooking
phase
Cooking hob
power too low or
not provided for a
longer duration.
Normal cooking
phase
Demo mode activated.
Touch Control defect.
Incorrectly installed, exhaust not
possible to the front.
Unsuitable pots (bottom bent)
Induction coil is not applied to the glass
ceramic
Fan does not start.
"H" in display
when cooking
hob and oven
cold and
switched off.
"H“
Temperature sensor defect.
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1) See Chapter 5. Touch
Control Cooking Hobs
Information.
2) Should this not help,
replace Touch Control.
See chapter installation
situation.
See Chapter Pot Detection
Information
Check whether the glass
ceramic was pushed down
when being screwed in
position and the coil has
been correctly positioned.
1) When setting a cooking
phase >0, the fan runs at a
slow speed. If not, check the
fan for foreign bodies,
remove these where
appropriate.
2) If necessary, replace fan.
3) Should this not succeed,
replace power component.
Replace corresponding coil
with temperature sensor.
Also see Instructions "E4“.
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5.3
Alarm message „E“
When the appliance is switched on, „E“ / „xx“ Alarm Number is displayed in the timer display.
The affected zones are subsequently displayed with an „E“ in the cooking phase display and are
thereby disabed. The other zones can still be used.
Example:
1) Error code 8 for the left board
Alarm
Symptom
Display in
the Cooking
Hob Timer
Possible Alarm
Cause
Alarm Remedying
Alarm display
in the Touch
Control.
"E2“
User interface temperature
too high
Temperature too high due to
installation, or UI defect.
"E3“
400 VAC detected, instead
of 230VAC, on left or right
module or both
"E4“
Coil temperature sensor
defect, not correctly
connected, or broken,
display in the corresponding
zone.
"E5“
Coil temperature sensor
defect, short, display in the
corresponding zone.
1) verify power lines connection,
on the wall
2) Should alarm still be
displayed, verify internal
connection in the hob,
3) Should alarm still be
displayed, See Chapter Testing
Power Component
1) Inspecting the contacts on
the power board. Is the
connector inserted?
2) The resistance at room
temperature (25°C) amounts to
100 kOhm. If not in this range,
replace affected temperature
sensor.
3) Should above not succeed,
replace power component
concerned.
1) Inspecting the contacts on
the power board.
2) The resistance at room
temperature (25°C) amounts to
100 kOhm.If not in this range,
replace affected temperature
sensor.
3) Should above not succeed,
replace power component
concerned.
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Alarm
Symptom
Display in
the
Cooking
Hob Timer
Possible Alarm
Cause
Alarm Remedying
"E6“
Communication defect
inside power board
Alarm Temperature
sensor heat sink power
component E7 open
E7. short
Communication
interference between
power and User
interface.
Replace identified power board.
"E7“ “7.”
"E8“
"E9“
5.4
Communication defect
inside user interface
E7, verify connector, if not OK,
Replace affected power component.
E7. Replace affected power component.
1) if left, Verify the power wiring in the
wall. If OK, Reinsert connector of UI,
Or replace cable. If not OK go to 3)
2) if Right, Verify middle connection of
cable of UI, replace cable, if not OK go to
3),
3) take cable of left power board and
connect to right power board, with a test
cable longer connect UI right to power
board left. A) same as before change
User interface, “E6” crossed change the
power board identified.
Replace User interface.
Other Alarmsymptoms
Alarm Symptom
Buzzer defect
Individual display
elements do not
illuminate or do not
do so continuously.
Pots cause noises
Display Possible
Alarm
Cause
Touch
control
defect.
Defective
display
elements
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Unsuitable
pots.
Normal
sound level
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Alarm Remedying
Replace User interface.
Replace User interface.
See Chapter Pot Detection Information.
Interference noises result from the high
working frequency of the induction. This can
vary from pan to pan. When measured in
operation pursuant to EN60335 §11-3
pursuant to EN60704 with 4 pots <47dBA. A
pot with boiling water has approx. 60-62dBA.
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5.5
Connection guideline
Power cords inside the hob
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5.6
Display
For details, refer to Instruction Manual - Cool top platform
Symbol
„.“
„-“
„A“
„E“
„F“
„H“
„L“
„P“
5.7
Comment
Intermediate cooking levels
Induction – zone switched off because of over temperature at the coil sensor
(empty pot)
Fast heating up function („Ankochstoss“)
On alarm display see error!
Pot detection – no pot detected
Residual heat indication
Lock – Function or key lock
Power (booster) function for induction
Inductions module test
1.
When alarm messages and disabled zones exist (“E“ in cooking phase display), please
make a note of the power component which is affected.
2.
Check power lines and connection to user interface is connected,
3.
If IGBT has become shorted, this normally means that the IGBT housing is damaged.
Replace power component.
4.
Measure resistance at the IGBTs
Pin1-Pin2 or Pin2-Pin3
>50kOhm f Okay
<50Ohm f power component defect & replace
Only replace the affected power component.
„IGBT“
Pin
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5.8
Pot identification information
Suitable pot materials:
Steel enamel
Stainless steel (with magnet. bottom)
Aluminium (with magnet. bottom)
Cast iron
Unsuitable materials:
Aluminium (à too much power)
Copper
Stainless steel (not magnetic)
Glass
Ceramic
The pot detection is designed for the following diameters:
Nominal burner ∅ [mm]
Minimum pot bottom ∅
instruction manual [mm]
145
180
210
125
145
180
Minimum pot bottom ∅
adjusted with steel plate
[mm]
100
120
140
With regard to Ind. G4, the same diameter is stipulated in the
instruction manuals as for the previous model. However, the
real diameter which still functions is much smaller.
The performance for different pots can very by as much as +/
- 10-15%.
-
As reference pots, we recommend enamelled steel pots
(e.g. Silit).
-
2-3 mm thick round steel plates in various diameters are
very suitable for testing the pot detection function.
-
Sandwich bottoms can cause very unpleasant noises if
they are not correctly pressed. The same is the case
with regard to handles which are a little loose.
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5.9
Touch Control Cooking Hobs Information
-
The Touch Control works on the basis of the capacitive principle, an amortizing mass is
detected, the signal modified is treated with some rules and validated as an action.
-
If the user interface is not applied to the glass ceramic, the signal for the button evaluation
is much smaller and the buttons can no longer be used, i.e. always ensure that the plastic
supports are always intact.
-
Should the appliance switch itself off without the glass ceramic having been touched, this
is due to a button being activated. Either external water or material on the glass.
Instructions on the operation / possible operation errors if the buttons do not function:
-
Please do not approach slowly, especially not from the side, it is better to approach the
button faster. A signal change is above all evaluated.
-
Applying excessive pressure to the cooking hob will not make a difference. It is better to
release it for 5 sec. and then press the button again.
-
If the adjustment of the cooking stage/timer does not continue after the button has been
released, this is due to the fact that the Touch Control receives a „Button Pressed“ signal
even from a distance of some mm.
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5.10
Demo mode / Self test (Service mode) / Alarm Menu
To enter the Demo mode / service mode / factory test menu , the following sequence of buttons
must be pressed:
1.
Hob is off. Press main switch continuously until display is going off (without beep).
2.
Press the „+“ and „ -“ buttons (2a) of both front zones together (all 4 keys togehter ) for
about 3 seconds (-> short beep).
3.
Press the timer selection key (-> again short beep).
4.
The display (C) shows a “d” for demo mode. If you press the timer select key again you
switch to “S” for service mode, another presee gets you to “E” the alarm menu!
5.
By pressing the button “+” of a cooking zone you activate the menu.
6.
By pressing the button “-“ of a cooking zone you deactivate the menu.
Demo Mode:
If demo mode is activated the display with the „d“ shows additionally a dot. After selecting the
demo mode, the electronic goes to off. Now it can be used like usual but only without heater
activation. The deactivation of the demo mode is done in the same procedure as activating. After
deactivating the demo mode the electronic must go off. Now the hob can be used in normal
mode.
Service Mode “S”
Routine:
1.
Show user interface SW version
2.
Show control SW version
3.
Show power SW version
4.
400V detection test: “400U” blink on displays until 400V is not applied. When 400V is
detected, the buzzer ring and “OU” is shown on display until 230V is not applied.
5.
Test all LEDs / Displays for 7 sec; during this time, booster is set on rear zones to test
sensors. When the time is elapsed, if the sensor are OK the test jump to the following step
otherwise “S” is shown alternatively on zones where the error occurred.
6.
Zone power test: a different power level is set on each zone for 2 seconds
Alarm Mode “E”
The last 5 stored alarm codes (if >o) are displayed like an actual alarm, each for 5 sec., starting
with the oldest (read request ‘5’ Alarm code message) to the newest (read request ‘1’).
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6.
Wiring diagrams
6.1
Example-slotted plan
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6.2
Example-circuit diagram
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