Electrolux

SERVICE MANUAL

COOKERS

© 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

Built-in hobs

Induction

„TEIS“

4.1

4.2

4.3

4.4

5.

5.1

5.2

3.

3.1

3.2

4.

5.3

5.4

5.5

5.6

5.7

5.8

5.9

5.10

6.

6.1

6.2

Inhaltsverzeichnis

1.

ESD=electrostatic discharge ............................................................................ 3

2.

2.1

Software specifications, Functions ................................................................... 4

Sample illustration: Induction hob ...................................................................... 4

2.2

Control panel ..................................................................................................... 4

2.3

Symbol,display and keys explanation ................................................................ 5

2.3.1

Touch control sensor fields ............................................................................... 5

2.3.2

Displays ............................................................................................................ 5

Functions of appliance ...................................................................................... 6

Basic functions/Child safety/Power-function ..................................................... 6

Safety cutoff ...................................................................................................... 7

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

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

Wiring diagrams .............................................................................................. 21

Example-slotted plan ....................................................................................... 21

Example-circuit diagram ................................................................................. 22

DGS-TDS-N 02.06 U. H. / A. B. © Electrolux - 2 599 525 284 EN

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.


2.

2.1

Software specifications, Functions

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.

Display

Cooking level selection

Cooking Zone displays, Timer Function

Timer Display

Timer

On/Off with control lamp

Power function

Interlock


2.3

Symbol,display and keys explanation

2.3.1

Touch control sensor fields

Sensor field

On/Off increase settings reduce settings

Timer

Interlock

Power

Function

Appliance On and Off connection

Increase cooking level/time

Reduce cooking level/time

Timer choice

Control panel lock/unlock

Power function Switch on/off

2.3.2

Displays

Display

Cooking levels

Fault

Pot detection

Residual heat

Child safety function

Power

Safety cutoff

DGS-TDS-N 02.06 U. H. / A. B. © Electrolux - 5 -

Description

Cooking area is switched off

Cooking levels are set

Function failure occurs

Cooking tablewear is unsuitable or too small and/or it is not put on.

Cooking area is still warm

Interlock/Child safety is on

Power-function is switched off

Safety cutoff is active

599 525 284 EN

3.

3.1

Functions of appliance

Basic functions/Child safety/Power-function

Control panel

Switch on/off the appliance

Switch on

Switch off

Display/signal

( I ) Touch for 2 seconds

( I ) Touch for 1 second

"0"/"H", Control lamp lights up

"H"/none, Control lamp turns 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

Locked/unlocked control panel

Switch on

Switch off

( + ) Touch

( - ) Touch

Touch ( + ) and ( - ) simultaneously

"1" to "9"/"P"

"9" to "0"

"0"

Touch (lock)

Touch (lock)

When switching off the appliance, the lock will switch off automatically.

"L" (for 3 seconds)

Pre-set cooking level

Switch on the childproof lock

Step 1

Step 2

Step 3

( I ) Switch on the appliance

Touch (lock) until the signal sounds

( + ) Touch

Appliance swiches off. The childproof lock is switched on.

"0"

Acoustic signal

"L"

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

Appliance switches off. The childproof lock is switched off.

"L"

Acoustic signal

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

If the power function stops, the cooking zones change bac automatically to the pre-set cooking levels.

Display/actual cooking level

6 alternately with 9/6


3.2

Safety cutoff

Cooking field: -

-

-

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.

Control panel: 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

1-2

3-4

5

6-9

The cooking zones are disconnected with:

6 Hours

5 Hours

4 Hours

1,5 Hours


4.

4.1

Functional parts - Component data, installation situation, dismantling

General view

Contact switch and holding frame UI

Input electronic (UI)

Insulation

Induction coil

Module of induction

Insulation

Sensor plate aluminium

Sensor

Support spring


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.


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

8

9

6

7

P

3

4

1

2

5

3.0%

5.5%

10.5%

15.5%

21.0%

31.0%

45.0%

64.0%

100.0%

42

77

147

217

294

434

630

896

1400

54

99

189

279

378

558

810

1152

1800

2800

66

121

231

341

462

682

990

1408

2200

2800


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:

230V

50/60Hz

3.6kW

Output per cooking area max.: 2.8kW

Total output: 3.6kW

Ambient temperature max.: T85


5.

5.1

Alarm Symptoms

Appliance not functioning at all, cannot be switched on

Alarm

Symptom

House fuse triggered

Cooking

Hob

Display

None

Cooking field cannot be switched on.

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.

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.


5.2

Individual cooking zones do not work (partially) or work incorrectly or cannot be used

Alarm Symptom Cooking

Hob

Display

Pan does not heat up.

Normal cooking phase

Flashing

"F“

Cooking hob power too low or not provided for a longer duration.



Cause

Pan in the border area of the pan detection and only works with low power

Pan not detected.

Coil not correctly connected.

Distance between coil and glass ceramic too large.


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 No power on all hobs

Individual buttons cannot be used or cannot always be used.


"H" in display when cooking hob and oven cold and switched off.

"H“

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.

Temperature sensor defect.

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“.


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

"E2“ Alarm display in the Touch

Control.

"E3“


Cause

User interface temperature too high

400 VAC detected, instead of 230VAC, on left or right module or both

"E4“

"E5“


Temperature too high due to installation, or UI defect.

Coil temperature sensor defect, not correctly connected, or broken, display in the corresponding zone.

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.


Alarm

Symptom

Display in the

Cooking

Hob Timer


Cause

"E7“ “7.”

Alarm Remedying inside power board

Alarm Temperature sensor heat sink power component E7 open

E7. short

E7, verify connector, if not OK,

Replace affected power component.

E7. Replace affected power component. interference between power and User interface. 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. inside user interface

5.4

Other Alarmsymptoms

Alarm Symptom

Individual display elements do not illuminate or do not do so continuously.

Pots cause noises

Display Possible

Alarm

Cause control defect. display elements

Unsuitable pots.


See Chapter Pot Detection Information. sound level 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.


5.5

Connection guideline

Power cords inside the hob


5.6

5.7

Display

For details, refer to Instruction Manual - Cool top platform

Symbol Comment

„.“ Intermediate cooking levels

„-“ Induction – zone switched off because of over temperature at the coil sensor

(empty pot)

„A“

„E“

„F“

„H“

„L“

„P“

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“

DGS-TDS-N 02.06 U. H. / A. B. © Electrolux

Pin 1 2 3

- 17 599 525 284 EN

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]

Minimum pot bottom

∅ adjusted with steel plate

[mm]

145 125 100

180 145 120

210 180 140

-

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.


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.


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’).


6.

6.1

Wiring diagrams

Example-slotted plan


6.2

Example-circuit diagram


Electrolux | EHF8748FOK | User manual | service manual cookers

SERVICE MANUAL

COOKERS

1.

ESD=electrostatic discharge

2.

Software specifications, Functions

3.

Functions of appliance

4.

Functional parts - Component data, installation situation, dismantling

5.

Alarm Symptoms

6.

Wiring diagrams

Related manuals

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