Appliance Documentation ICBN 3356 from -20

Service Documentation

Service Manual No. 20/2013 Version 01 LHG/KDT-Un/07.10.19

Page 1/41 20201301SM_en.docx

After Sales Service International

Appliance Documentation

ICBN 3356 from -20 Premium, A+++ with LED interior light

Integrated fridge-freezer with BioFresh and NoFrost

ICBN 3356

Service Manual No. 20/2013 ICBN 3356 from -20

Page 2/41

Contents 1.0 Operating and control elements ............................................................................................... 3 2.0 Functions at a glance ................................................................................................................. 3 3.0 Description of appliance ............................................................................................................ 4

3.1 Sensor positions, schematic diagrams ......................................................................................... 5 4.0 Main components and their functions ...................................................................................... 6

4.1 Electrical components and functions ............................................................................................ 6 4.1.1 General .................................................................................................................................................. 6 4.1.2 Refrigerator BioFresh compartment ...................................................................................................... 7 4.1.3 Freezer compartment ............................................................................................................................ 9

4.2 Refrigeration components and functions .................................................................................... 11 4.2.1 General ................................................................................................................................................ 11 4.2.2 Refrigerator compartment ................................................................................................................... 11 4.2.3 Freezer compartment .......................................................................................................................... 11 4.2.4 Principle of operation of the refrigerating system ................................................................................ 12

5.0 Assembly instructions/Parts replacement ............................................................................. 13 5.1 General ....................................................................................................................................... 13

5.1.1 Electrical .............................................................................................................................................. 13 5.1.2 Strain relief/Cover appliance ceiling .................................................................................................... 15 5.1.3 Hanging door - top ............................................................................................................................... 16 5.1.4 Hanging door - middle ........................................................................................................................ 17 5.1.5 Hanging door – bottom ........................................................................................................................ 18 5.1.6 Soft stop .............................................................................................................................................. 19 5.1.7 Solenoid valve refrigeration circuit ...................................................................................................... 20

5.2 Refrigerator compartment ........................................................................................................... 21 5.2.1 Dismantling the horizontal separating plate ........................................................................................ 21 5.2.2 Removing the vertical separating plate. .............................................................................................. 22 5.2.3 BioFresh air sensor ............................................................................................................................. 23 5.2.4 Refrigerator compartment air sensor .................................................................................................. 23 5.2.5 Evaporator sensor ............................................................................................................................... 24 5.2.6 Fan ...................................................................................................................................................... 25 5.2.7 Refrigerator compartment light column ............................................................................................... 26 5.2.8 BioFresh light ...................................................................................................................................... 28 5.2.9 BioFresh pull-out rails.......................................................................................................................... 29 5.2.10 Door magnet ........................................................................................................................................ 31

5.3 Freezer compartment ................................................................................................................. 32 5.3.1 Air sensor, evaporator module and fan module .................................................................................. 32 5.3.2 Temperature fuse, evaporator sensor and defrost heater .................................................................. 32 5.3.3 Fan and Reed PCB ............................................................................................................................. 33 5.3.4 Lighting ................................................................................................................................................ 34 5.3.5 Door magnet ........................................................................................................................................ 34

6.0 Technical data........................................................................................................................... 35 6.1 General ....................................................................................................................................... 35 6.2 Refrigerator BioFresh compartment ........................................................................................... 35 6.3 Freezer compartment ................................................................................................................. 35

7.0 Service menu ............................................................................................................................ 36 7.1 Brief overview of service menu ................................................................................................... 36 7.2 Manual defrosting H .................................................................................................................... 37 7.3 Demo mode D ............................................................................................................................. 37 7.4 Panel test P ................................................................................................................................. 38 7.5 Sensor test (display of temperature) and door contact test E- ................................................... 39 7.6 Service mode L- ........................................................................................................................ 40

8.0 Error code, troubleshooting .................................................................................................... 41 8.1 Table of error codes ................................................................................................................... 41 8.2 VCC compressor diagnostic LED ............................................................................................... 41

8.2.1 Activating the diagnostic LED ............................................................................................................. 41 8.2.2 Diagnostic LED flash code .................................................................................................................. 41


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1.0 Operating and control elements

Refrigerator BioFresh compartment Freezer compartment 1 ON/OFF On/Off button for refrigerator compartment 2 Holiday Holiday function 3 SuperCool SuperCool function 4 Up Setting button temperature warmer 5 Down Setting button temperature colder

7 Up Setting button temperature warmer 8 Down Setting button temperature colder 9 SuperFrost SuperFrost function 11 On/Off On/Off button for appliance

General 6 Temperature display 10 Alarm Alarm OFF button for audible alarm

2.0 Functions at a glance

Control: Electrical

Temperature display: Refrigerator compartment: Actual temperature Freezer compartment: Actual temperature

Temperature range: Refrigerator compartment: +3°C to +9°C Freezer compartment: -15°C to -26°C

Temperature alarm: Refrigerator compartment: Not featured Freezer compartment: Visual and audible

Door alarm: Refrigerator compartment: Featured Freezer compartment: Featured

Fan: Refrigerator compartment: Featured Freezer compartment: Featured

Defrosting: Fridge compartment: Automatic Freezer compartment: Automatic

Interior light: Refrigerator compartment: Featured Freezer compartment: Featured

Service menu: Featured

Compressor: VCC, AC protocol

1 2 3 4 5 6 7 8 9 10 11


Page 4/41

3.0 Description of appliance The ICBN is an integrated BioFresh refrigerator with NoFrost freezer compartment. The appliance features a compressor. The refrigeration control of the refrigerator BioFresh evaporator and freezer evaporator is effected via a bi-stable solenoid valve. Both evaporators are connected in series (see diagram 4.2.4/ 1). Therefore the refrigerator compartment can be operated only in conjunction with the freezer compartment. However, it is possible to operate the freezer compartment on its own. Refrigerator and BioFresh compartment: Refrigerator compartment and BioFresh compartment are cooled by a common evaporator. The evaporator is held in place by foam and situated behind the rear wall of the liner and is thermally partitioned by an insulated, vertical separating plate. A DC fan is used for temperature adjustment between refrigerator compartment and BioFresh compartment. The fan is integrated in the vertical separating plate. If the refrigerator compartment requires cooling (detection by refrigerator compartment air sensor), the fan is switched ON. The fan takes in warm air from the front and blows it past the evaporator in a downward direction. The air, now cold, is conducted past the BioFresh safes upwards into the refrigerator compartment. When it is sufficiently cold in the refrigerator compartment, the fan is switched OFF. The compressor continues running and the BioFresh safes are statically cooled by the falling temperatures. The compressor continues to run and the solenoid valve is on setting A (cooling + freezing) until such time as the air in the BioFresh compartment is sufficiently cold (detection by BioFresh air sensor). Freezer compartment: The freezer compartment features a NoFrost rear wall evaporator module, fan module, air sensor and evaporator sensor. The temperature display and the cooling activation/deactivation are effected by the air sensor. The evaporator sensor is responsible for controlling the freezer compartment fan and the defrost function of the evaporator module.


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3.1 Sensor positions, schematic diagrams

Fig. 3.1/ 1 Fig. 3.1/ 2

Fan

Air sensor

Electrical

Air sensor

Evaporator sensor

Evaporator sensor

BioFresh light

Fan

Freezer compartment

lighting

Lamellar evaporator

BioFresh air sensor

Rear wall evaporator

LED interior light


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4.0 Main components and their functions

4.1 Electrical components and functions

4.1.1 General

Electrical

Type: Series 6 electronic control system

Components: Control panel and power PCB

Compressor

Type: VCC, AC protocol

Function: On: Refrigerator compartment evaporator sensor on or Freezer compartment air sensor on Note: Time delay between on cycles (8 min.) must have elapsed.

Off: Refrigerator compartment BioFresh air sensor switch-off value and Freezer compartment air sensor off.

Compressor with various speed settings.

The compressor is triggered via an inverter, the inverter electronics are mounted directly on the compressor. The inverter is controlled by the appliance's electronics.

Appropriate command signals in the AC protocol control the compressor speed settings and switch-off. These commands are sent cyclically depending on the type of command. Note: If command signals fail or are not recognised the compressor will continue running on a preset speed setting! Function test see chapter 7.6: Service mode

Troubleshooting see chapter 8.2: VCC compressor diagnostic LED

Solenoid valve refrigeration circuit

Type: bi-stable

Function: Switch between A (refrigerator BioFresh compartment + freezer compartment) and B (freezer compartment)


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4.1.2 Refrigerator BioFresh compartment

Electrical

Setting range: +3°C to +9°C

BioFresh compartment: b1 to b9 (b1: coldest setting; 1.2K per step)

Display range: 3°C to 49°C (actual value display) temperatures equal to and lower than +3°C are displayed as 3°C.

Functions

SuperCool: On: Refrigerator compartment set to +3°C for 12 hours. Inverter switches to highest setting until 3°C is reached.

Off: The refrigerator compartment adjusts itself to the set value.

Holiday: On: Press button for 3 sec. Refrigerator and BioFresh compartments adjust themselves to +15°C.

Off: The refrigerator compartment adjusts itself to the set value.

Info: Remove all food from the refrigerator compartment. This function prevents odours arising when the refrigerator door is closed. Press button for 3 sec. Refrigerator and BioFresh compartments adjust themselves to +15°C.

Defrosting: - Automatic if solenoid valve in position B "freezer compartment only". - Automatic during compressor standstill phase.

Door alarm When: If door is open for more than 60 sec.

Audible: 3 beeps.

Sensor

Refrigerator compartment air sensor:

Position: Behind vertical separating plate.

Function: - Switches the fan ON/OFF. - Generates the display value.

Evaporator sensor: Position: In foam in the evaporator rear wall.

Function: - Refrigerator compartment evaporator sensor or freezer compartment air sensor, switch the compressor ON. - Switches the solenoid valve to position A (cooling + freezing) - On start-up enables fan to be switched ON, above +10°C. - Ends the defrosting phase.

BioFresh air sensor: Position: Under horizontal separating plate, clipped into vertical separating plate.

Function: - BioFresh air sensor and freezer compartment air sensor switch the compressor OFF. - Switches the solenoid valve to position B (freezing only)

Ambient air sensor: Position: On the power PCB

Function: Affects the switch-off value of the BioFresh air sensor. This minimises temperature fluctuations in the BioFresh compartment.

Info: An ambient air sensor error is displayed only in the service menu. In case of fault, the switch-off value of the BioFresh air sensor is not affected. In case of a defect the power PCB must be replaced.


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Switch

Door switch: Position: In door panel at top.

Type: Magnetic field sensor

Function: Activated by: Magnet is set in foam in door, magnet is not interchangeable.

Switching signal when:

Door closed: Interior light OFF

Door open: Interior light ON Fan OFF Door alarm ON after 60 sec.

Consumers / loads

Fan: Position: Centre of liner ceiling, behind vertical separating plate.

Function:

* Refrigerator compartment cooling ON: Compressor ON and solenoid valve position A. Fridge compartment cooling OFF: - Compressor OFF or - Compressor ON and solenoid valve position B.

During start-up the fan switches ON only from +10°C at the evaporator sensor.

Refrigerator compartment interior light:

Position: Inside right and left.

Function: - Lights up as soon as the door is opened. - Is switched OFF after door has been open for 15 minutes.

BioFresh compartment interior light:

Position: Centre front of the horizontal separating plate.


Refrigerator compartment air

sensor

Refrigeration compartment

cooling capacity* Door Fan

Switch-on value (refrigerator

compartment warm) OFF CLOSED ON


compartment warm) ON CLOSED ON


compartment warm) ON/OFF OPEN OFF

Switch-off value (refrigerator

compartment cold) ON/OFF

CLOSED/OPEN

OFF

E.g. if the refrigerator compartment air sensor is warm, i.e. fan switch-on value is reached, and cooling of the refrigerator compartment is ON and the door is closed, then the fan is ON.


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4.1.3 Freezer compartment

Electrical

Setting range: -15°C to -26°C

Display range: 0°C to -32°C (actual value display) Values outside the range are indicated by a crossbar.

Functions

Temperature alarm: Alarm value: 6K higher than target value.

SuperFrost alarm value: -10°C.

Delay: 60 Min.

Visual: Flashing temperature display and alarm LED.

Audible: 4 beeps.

On start-up: The temperature display flashes until the switch-off value is reached, the audible alarm is switched off.

For example, with a set value of -18°C, there must be a temperature of -12°C for at least 60 mins., this sets of the temperature alarm.

After the defrosting phase begins, the temperature alarm is suppressed for approx. 1.5 hrs.

Defrosting: ON: - During start-up after 10 hours cumulative compressor running time. - After a cumulative compressor running time of 10 to 66 hours maximum, depending on the number/duration of door openings.

When the defrosting phase begins, the compressor and the fan are switched OFF and the defrost heater is switched ON.

Duration: The defrost heater remains switched ON until - the freezer compartment evaporator sensor has reached +8°C or - a max. defrosting time of 40 minutes has been reached.

Info: After the end of the heating phase, there is a three-minute delay before the compressor is switched ON. If the SuperFrost function is activated during the defrosting phase, this will not interrupt defrosting.

Door alarm: When: If door is open for more than 60 sec.

Audible: 3 beeps.

SuperFrost: ON: Freezer compartment sets itself to -32°C (quantity-controlled, 50 hours minimum, 65 hours maximum)

The appliance sets itself to -32°C for at least 50 hours. In the following 15 hours cooling by 11K to the set temperature must be achieved or a total period of 65 hours have elapsed for SuperFrost to be terminated automatically.

OFF: The freezer compartment sets itself to the set value.

Attention: If SuperFrost is activated during a defrosting phase, the SuperFrost function is not performed before the defrosting phase has completed.


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Sensor

Air sensor: Position: Clipped into the sensor holder in the air duct panel.

Function: - Freezer compartment air sensor or refrigerator compartment evaporator sensor, switch the compressor ON. - Freezer compartment air sensor and BioFresh air sensor, switch the compressor OFF. - Switches the fan OFF. - Generates the display value.

Evaporator sensor: Position: Slipped into lamellar evaporator.

Function: - Switches the freezer compartment fan ON. - On start-up or after defrosting enables fan to be switched ON, above -25°C. - Ends the defrosting phase.

Switch

Door switch: Position: In fan housing.

Type: Reed PCB

Contact type: Make contact

Function: Activated by: Magnet is set in foam in door, magnet is not interchangeable.

Switching signal when:

Door closed: Interior light OFF

Door open: Interior light ON Fan OFF Door alarm ON after 60 sec.

Consumers / loads

Fan: Position: Top centre of freezer compartment.

Function: ON: - Compressor ON and - freezer compartment door closed and - evaporator sensor switch-on value reached.

Evaporator sensor switch-on value: a) On start-up / After defrosting phase: -25°C. b) During normal operation 2K colder than freezer compartment air sensor.

OFF: - compressor off or - Exception: The refrigerator compartment air sensor is too warm and the freezer compartment air sensor is at least 2K colder than the switch-off value. There is therefore more power available for the refrigerator compartment!

Defrost heater: Position: Clipped into lamellar evaporator.

Function: Keeps the lamellar evaporator ice-free. For activation, see: Defrosting

Interior light: Position: On crosspiece.



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4.2 Refrigeration components and functions

4.2.1 General

Compressor

Compressor: VCC, AC protocol

Solenoid valve

Solenoid valve: bi-stable

Function: Switch over between A (refrigerator BioFresh compartment + freezer compartment) and B (freezer compartment)

Freezer compartment priority on start-up for 2 hours.

4.2.2 Refrigerator compartment

Evaporator

Type of appliance: Rear wall evaporator

Type of installation: Foamed-in

Injection point: Top centre

Flow sequence: See 4.2.4 Principle of operation of the refrigerating system

4.2.3 Freezer compartment

Evaporator

Type of appliance: Lamellar evaporator

Type of installation: Freestanding between air duct panel and compartment liner

Injection point: Top left on lamellar evaporator

Flow sequence: See 4.2.4 Principle of operation of the refrigerating system

Frame heater

Frame heater: Foamed-in in the housing, in the area of the freezer compartment magnetic door seal. (see Fig. 4.2.4/ 1)

Type: Fluid heater


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4.2.4 Principle of operation of the refrigerating system

Fig. 4.2.4 / 1

Compressor

Condenser Refrigerator compartment evaporator

Freezer compartment evaporator

Solenoid valve

Freezer compartment frame heater

AB


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5.0 Assembly instructions/Parts replacement

5.1 General

5.1.1 Electrical

Covers: Disengage the covers at the marked locations.

Fig. 5.1.1/ 1 (Fig. similar) Fig. 5.1.1/ 2 Front panel: - Disengage the front housing locating lug. - Pull the front panel forwards and out.

Fig. 5.1.1/ 3 (Fig. similar) Operating element: - Disengage and pull off connector (see Fig. 5.1.1/ 4). Info The operating element is an assembly unit consisting of:

- Front panel - Electronic control panel - PCB carrier

This assembly unit cannot be further disassembled.

Fig. 5.1.1/ 4 (Fig. similar)

Disengage the connector

Disengage the PCB carrier


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Power PCB: - Disengage the PCB carrier and pull out in a forward direction (see Fig. 5.1.1/ 5). - Disengage and pull off connector (see Fig. 5.1.1/ 6). - Disengage the PCB carrier cover (see Fig. 5.1.1/ 7) - Disengage the power PCB (see Fig. 5.1.1/ 8)

Fig. 5.1.1/ 5 (Fig. similar) Fig. 5.1.1/ 6 (Fig. similar)


Cover

PCB carrier


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5.1.2 Strain relief/Cover appliance ceiling

- The cables run through a cable duct in the appliance ceiling.

Note: Mains power cables run through a separate duct! - First disengage the cover at the front, Fig. 5.1.2/ 2.

Fig. 5.1.2/ 1 Fig. 5.1.2/ 2 - Lift the cover upwards

Fig. 5.1.2/ 3 (Fig. similar) Fig. 5.1.2/ 4 (Fig. similar) When replacing the cover in sure that it is first engaged at the back and then pressed downwards.

Strain relief/Cover

Cable clamps

Strain relief

Mains power cables


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5.1.3 Hanging door - top

Top door hinge: - Remove cover.

- Loosen fastening screws (approx. 1cm), do not unscrew completely (Fig. 5.1.3/ 1). Door hinge can be removed when screws are loosened but still in place - After removing the (door) hinge unscrew the fastening screws completely and slide the metal bracket upwards to remove (Fig. 5.1.3/ 2). - In order to change on which side the door hangs, fit the metal bracket on the opposite side and do up the screws leaving the last 1cm (Fig. 5.1.3/ 3+4). - Fit (door) hinge and tighten screws.

Fig. 5.1.3/ 1 Fig. 5.1.3/ 2

Fig. 5.1.3/ 3 Fig. 5.1.3/ 4

Fastening screws


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5.1.4 Hanging door - middle

Middle hinges: - Remove cover.

- Loosen fastening screws (approx. 1cm), do not unscrew completely. Door hinge can be removed when screws are loosened but still in place - After removing the (door) hinge unscrew the fastening screws completely. - When changing on which side the door hangs, do up the screws on the opposite side leaving the last 1cm. - Fit (door) hinge and tighten screws.

Fig. 5.1.4/ 1 (Fig. similar)


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5.1.5 Hanging door – bottom

Bottom door hinge: - Remove cover.

- Loosen fastening screws (approx. 1cm), do not unscrew completely. Door hinge can be removed when screws are loosened but still in place - After removing the (door) hinge unscrew the fastening screws completely. - When changing on which side the door hangs, do up the screws on the opposite side leaving the last 1cm (Fig. 5.1.5/ 3). - Fit (door) hinge and tighten screws.


Fig. 5.1.5 / 3

Cover Fastening screws


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5.1.6 Soft stop

Soft stop mechanism: - Lift up the soft stop mechanism with a screwdriver. - Unscrew the ball head with an open-ended spanner or Torx screwdriver. - Loosen the screw on the hinge

Fig. 5.1.6/ 1 Fig. 5.1.6/ 2

Fig. 5.1.6/ 3 Fig. 5.1.6/ 4

Fig. 5.1.6 / 5

Soft stop

Ball stud

Holder

Clip


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5.1.7 Solenoid valve refrigeration circuit

Solenoid valve When detaching the capillaries, ensure that these are later properly re-connected.

Marking on solenoid valve cover:

KS: Refrigerator compartment capillary tube GS: Freezer compartment capillary tube

Fig. 5.1.7 / 1

Refrigerator compartment capillary tube

Freezer compartment capillary tube


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5.2 Refrigerator compartment

5.2.1 Dismantling the horizontal separating plate

Horizontal separating plate: - Remove the BioFresh drawers.

(First raise it at the back, there will be some resistance to overcome, and then remove it in a forward direction).

- Pull out humidity control plate. - Remove BioFresh light (see 5.2.8 BioFresh Light), and loosen cable from groove (Fig. 5.2.1/ 4). - First push the horizontal separating plate approx. 3cm forwards to let the cable hang free, then pull out in a forward direction. (Separating plate is clicked in at the back. When pulling out some resistance must be overcome)

Fig. 5.2.1/ 1 Fig. 5.2.1/ 2

Fig. 5.2.1/ 3 Fig. 5.2.1/ 4

Fig. 5.2.1 / 5

Humidity control plate

BioFresh light


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5.2.2 Removing the vertical separating plate.

Vertical separating plate: - Removing the vertical separating plate

(see 5.2.1 Removing the horizontal separating plate). - Remove glass shelves. - Unclip the BioFresh air sensor. - Undo separating plate fastening screws (Fig. 5.2.2/ 2). - Using a screwdriver, unclip the holding clips on right and left where marked (Fig. 5.2.2/ 3) and press in the direction of the separating plate (Fig. 5.2.2/ 4). - Swing separating plate to right. - Pull out the refrigerator compartment air sensor and disconnect the fan cable.

Fig. 5.2.2/ 1 Fig. 5.2.2/ 2

Fig. 5.2.2/ 3 Fig. 5.2.2/ 4

Fig. 5.2.2/ 5 Fig. 5.2.2/ 6 (Fig. similar)

Fastening screws

Retaining

BioFresh air sensor


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5.2.3 BioFresh air sensor

BioFresh air sensor: - Removing the BioFresh air sensor (see 5.2.1 Removing the horizontal

separating plate). - Removing the vertical separating plate

(see 5.2.2 removing the vertical separating plate). - Unclip the BioFresh air sensor from the holder.

Fig. 5.2.3 / 1 5.2.4 Refrigerator compartment air sensor

Refrigerator compartment air sensor: - Removing the horizontal separating plate (see 5.2.1 Removing the horizontal

separating plate). - Removing the vertical separating plate

(see 5.2.2 removing the vertical separating plate). - Remove the refrigerator compartment air sensor from the holder

Fig. 5.2.4/ 1 Fig. 5.2.4/ 2

Refrigerator compartment air sensor

BioFresh air sensor


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5.2.5 Evaporator sensor

Evaporator sensor: The evaporator sensor is foamed in in all models and in case of repair must be replaced

using the appropriate repair kit. The repair instructions accompany the repair kit.

Fig. 5.2.5/ 1 Fig. 5.2.5/ 2

Position of evaporator sensor when foamed in

Position of evaporator sensor after repair


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5.2.6 Fan

Fan: - Removing the horizontal separating plate

(see 5.2.1 Removing the horizontal separating plate). - Removing the vertical separating plate

(see 5.2.2 removing the vertical separating plate). - Unclip the absorber from the locating lugs. - Disconnect the connector. Remove the fan.

Fig. 5.2.6/ 1 Fig. 5.2.6/ 2

Fig. 5.2.6/ 3: View without fan Fig. 5.2.6/ 4 Note: The direction of installation (direction of air current) is indicated by an arrow. The arrow (see Fig. 5.2.6/ 2) must point in the direction of the compartment liner (rear wall of appliance).

Fan Absorber


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5.2.7 Refrigerator compartment light column

Light cover: - Depress the light cover lock with a screwdriver.

- Slide the light cover upwards. - Remove the light cover. - Pull out the connector from the LED PCB. When fitting, ensure that the light cover is fitted in the lower position.

Fig. 5.2.7/ 1 Fig. 5.2.7/ 2

Fig. 5.2.7/ 3 Fig. 5.2.7/ 4 LED PCB: - Disengage the LED PCB on the light cover on one side. - Remove the LED PCB.

Fig. 5.2.7/ 5: Light cover with LED PCB

Locating lugs

1

2


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Retaining strip: - Lift out the front of the retaining strip starting at a corner. - Remove the retaining strip.

Fig. 5.2.7/ 6: Retaining strip Fig. 5.2.7/ 7

Fig. 5.2.7 / 8

Retaining strip

Light cover

LED PCB


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5.2.8 BioFresh light

LED light unit: - Loosen the LED lighting unit clips as marked.

- Remove the light cover. - Pull off connector from LED lighting unit.

Info: LED PCB is not available separately, only with light cover!

Fig. 5.2.8/ 1 Fig. 5.2.8/ 2

Fig. 5.2.8/ 3 Fig. 5.2.8/ 4

Light cover

LED PCB


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5.2.9 BioFresh pull-out rails

Drawers: - Remove BioFresh drawers. First raise them at the back and then remove them in a forward direction (Fig. 5.2.9/ 1). Pull‐out rails: - Pull out the top rail. - Press down the retaining lug. - Push the lower rail to the rear to disengage it (Fig. 5.2.9/ 2). Cushion stop: - Endpiece of the cushion stop must be extended. - Disengage the cushion stop and remove it starting from the right-hand side (Fig. 5.2.9/ 3).

Fig. 5.2.9/ 1 Fig. 5.2.9/ 2 Retaining strips: - Using a screwdriver, lever the retaining strip off the compartment liner, using a wooden

underlay to protect the compartment liner.

Fig. 5.2.9/ 3 Fig. 5.2.9/ 4

Retaining strip

Wooden underlay

Retaining lug

Disengage


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Fitting retaining strips: - Insert the retaining strip into the seat in the compartment liner as illustrated in Fig. 5.2.9/ 5, and push it back fully. - Press the retaining strip into place. - The new retaining strip comes with a screw. This screw is screwed into place, as illustrated, for additional fastening (Fig. 5.2.9/ 6).

Fig. 5.2.9/ 5 Fig. 5.2.9/ 6 Fitting the cushion stop Insert the cushion stop on the left in the retaining strip and press it in until it locks in the retaining strip (Fig. 5.2.9/ 7) Fitting the pull-out rails: - Attach the rail as illustrated and press the lower rail forwards for engagement.

- Push the upper rail to the rear.

Fig. 5.2.9/ 7 Fig. 5.2.9/ 8

Fig. 5.2.9 / 9

Pull-out rails

Cushion stops

Retaining strip


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5.2.10 Door magnet

Door magnet: - Door magnet is foamed in above the door seal in the top of the door.

Door magnet cannot be replaced!

Fig. 5.2.10 / 1

Door magnet


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5.3 Freezer compartment

5.3.1 Air sensor, evaporator module and fan module

Air Sensor: Engaged in sensor holder on air duct panel. Evaporator module: - Clear out the drawers and glass shelves in the freezer compartment.

- Disengage the air sensor. - Undo the screws marked in Fig. 5.3.1/ 1 and remove the rear wall. - Raise and swing out the evaporator module in a forward direction.

Fan module: Undo the marked screws and expose the cable (see Fig. 5.3.1/ 2).

Fig. 5.3.1/ 1 Freezer compartment with air duct panel Fig. 5.3.1/ 2 Fan module 5.3.2 Temperature fuse, evaporator sensor and defrost heater

Temperature fuse: The temperature fuse must be replaced separately using a conversion kit. The conversion kit consists of : - 1 temperature fuse - 2 press connectors - 2 shrink tubes Warning: Always fit the press connectors on the blue wires of the temperature fuse. The defrost heater is destroyed as soon as the white lead of the defrost heater is cut.

Evaporator sensor: - Remove the metal cover by cutting the adhesive strips on right and left and bending

the retaining straps. - Pull out the evaporator sensor to the right, out of the lamellar evaporator.

Defrost heater: Clipped into the lamellar evaporator. Only replaceable with the complete evaporator

module.

Fig. 5.3.2/ 1 Evaporator module Fig. 5.3.2/ 2 Cut through the adhesive strip

Air sensor

Temperature fuse


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Fig. 5.3.2/ 3 Evaporator sensor 5.3.3 Fan and Reed PCB

Reed PCB: - Loosen the fan module (see Fig. 5.3.1/ 2) - Disengage the Reed PCB cover (see Fig. 5.3.3/ 2). - Disconnect the Reed PCB . Note the position of the Reed PCB. Reed contact is pointing forwards.

Fan: - Disconnect Reed PCB.

- Extract cable from fan module. - Open clip for cable. - Disconnect fan cable. - Remove fan module. - Detach fan blades. - Remove fan from holder.

Fig. 5.3.3/ 1 Fan module with reed PCB Fig. 5.3.3/ 2 Reed PCB

Fig. 5.3.3/ 3 Fan

Evaporator sensor

Fan module

Reed PCB


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5.3.4 Lighting

Light housing: - Disengage light cover on both sides (Fig. 5.3.4/ 1).

- Push light housing to the right to detach it from the cross bar. - Disengage the connector.

Fig. 5.3.4/ 1 Fig. 5.3.4/ 2

Fig. 5.3.4/ 3 Fig. 5.3.4/ 4 5.3.5 Door magnet

Door magnet: - Door magnet is foamed in at the top behind the door interior

Door magnet cannot be replaced!

Fig. 5.3.5 / 1

Door magnet

Disengaging


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6.0 Technical data

6.1 General

Sensor values: Refrigerator compartment: Air, evaporator and BioFresh sensor Freezer compartment: Air and evaporator sensors

Temperature [°C] Resistance value [kOhm]

+35 3.1

+30 3.8

+25 4.7

+20 5.9

+15 7.3

+10 9.3

+5 11.9

0 15.3

-5 19.8

-10 25.9

-15 34.1

-20 45.3

-25 60.8

-30 82.3

-35 112.8

Solenoid valve refrigeration circuit:

Voltage: 230 Volt/AC (50Hz) Resistance : 4.95 kOhm

6.2 Refrigerator BioFresh compartment

Refrigerator compartment light column:

Output: 3.2 - 4.2 Watt (2x 1.6 - 2.1 Watt) Voltage: 12.6 - 13.6 Volt/DC

BioFresh light: Output: 1.2 - 1.5 Watt Voltage: 12.6 - 13.6 Volt/DC

Fan: Output: 1.1 Watt Voltage: 12 Volt/DC

6.3 Freezer compartment

Freezer compartment lighting:

Output: 1.0 - 1.54 Watt Voltage: 3.2 - 4.0 Volt/DC

Fan: Output: 1.5 Watt Voltage: 12 Volt/DC


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7.0 Service menu The service menu may be used by service technicians only.

Service menu activation: Press "Up" + "ON/OFF" simultaneously for about 5 seconds (freezer compartment buttons) Once the service menu is activated, "MENU" flashes in the display. 7.1 Brief overview of service menu

Activation Press "Up" + "ON/OFF" simultaneously for about 5 seconds (freezer compartment buttons)

Service menu Menu Operation

Sub menu

Operation

Selection of functional part

Manual defrosting

Up

/Do

wn

H 1x SF* H1 1x SF A : Manual defrosting active

Demo mode D 1x SF D1/D0 1x SF Demo Mode ON / OFF

Panel test (control panel test)

P 1x SF P1 1x SF Press sensor buttons, door sensor

Sensor test

E- 1x SF Ed 1x SF

Up

/Do

wn

d1 : Refrigerator compartment air sensor

d2 : Refrigerator compartment evaporator sensor

d3 : Freezer compartment air sensor

d4 : Freezer compartment evaporator sensor

d0 : BioFresh air sensor

d7 : Ambient air sensor

Service mode

L- 1x SF Ld 1x SF

Up

/Do

wn

d0 : All OFF

d1 : Compressor ON, low speed; solenoid valve position B

d2 : Compressor ON, high speed; solenoid valve position A

d3 : Freezer compartment fan

d4 : Freezer compartment heater

d5 : Refrigerator compartment light ON

d7 : Freezer compartment fan, low speed

d8 : Refrigerator compartment fan, high speed

dE : Freezer compartment light ON * SF=SuperFrost


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7.2 Manual defrosting H

Step Display Operation Display following operation

Testing option / Info

Service menu start

1 Actual values Hold down "Up" + "On/Off" together for 5 seconds

H flashes Service menu active.

2 H flashes Press "SuperFrost"

Refrigerator compartment: Actual temperature Freezer compartment:

H1 flashes

Manual defrosting selected

3 H1 static Press "SuperFrost"

Refrigerator compartment: Actual temperature Freezer compartment:

A flashes

Manual defrosting active

Manual defrosting ends automatically. Manual defrosting can be ended early by switching the freezer compartment off and then on again.

7.3 Demo mode D



Start service menu -- Demo mode ON --

1 Actual value Hold down "Up" + "On/Off" together for 5 seconds

H flashes Service menu active

2 H flashes Press "Up" once D flashes Demo mode selected

3 D flashes Press "SuperFrost" once D1static Demo mode ON selected

4 D1static Press "SuperFrost" once Set value and "Demo"

Demo mode ON

Start service menu --Demo mode OFF--

1 Set value and "Demo" Hold down "Up" + "On/Off" together for 5 seconds

D flashes and "Demo" Service menu active Demo mode selected

2 D flashes and "Demo" Press "SuperFrost" once D0static and "Demo" Demo mode OFF selected

3 D0static and "Demo" Press "SuperFrost" once Actual value Demo mode OFF

In the display, the text "Demo" gives the information about the activated demo mode. Demo mode can be deactivated only via service menu, not by OFF/ON or disconnection from the supply. Operation switches to the mode wanted, demo mode or normal mode, as soon as "SuperFrost" has been actuated.


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7.4 Panel test P



Service menu start



Panel test -- test of sensor buttons, display elements, door sensor and beep --

2 H flashes Press "Up" twice P flashes Panel test selected

3 P flashes Press "SuperFrost" once P1static Panel test activated

4 P1static Press "SuperFrost" once zzAll symbols/ segments

Display elements/ More symbols are displayed than are used by respective electronic control system!

5 zzAll symbols/ segments

Open/shut door and press all buttons in sequence (each action is confirmed by a beep)

- Beep for 2 sec. - Appliance switches OFF

After pressing the last button, beeps for 2 sec. Beeps only when test was successful.

End

Panel test cannot be terminated, e.g. in step 2, it must be performed in full. Should a button/sensor be defective, there is no 2 second-beep and the appliance does not switch OFF. The appliance then must be unplugged and plugged back in again. The appliance will carry out a reset. All settings are returned to factory setting


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7.5 Sensor test (display of temperature) and door contact test E-



Service menu start



Sensor test and door contact test (sensor values without offset, appliance in control mode)

2 H flashes Press "Up" three times E-flashes Sensor test mode selected

3 E-flashes Press "SuperFrost" once Edstatic Sensor test mode activated

4 Edstatic Press "SuperFrost" once d1flashes alternately with sensor temperature

Refrigerator compartment air sensor

5 d1flashes alternately with sensor temperature

Press "Up" once d2flashes alternately with sensor temperature

Refrigerator compartment evaporator sensor



Freezer compartment air sensor



Freezer compartment evaporator sensor



BioFresh compartment air sensor



Ambient air sensor


Press "Up" once dAflashes alternately

with OP or gL

Refrigerator compartment door contact(OP=door open, gL=door closed)

11 dAflashes alternately with

OP or gL Press "Up" once

dBflashes alternately

with OP or gL

Freezer compartment door contact (OP=door open, gL=door closed)

End Press "ON/OFF" once: Return to level 2 Ed. No further options can be selected for this appliance. Press "ON/OFF" twice: Return to level 1 E-. Points: H.D.P.E-.L selectable Press "ON/OFF" three times: Return to normal/control mode.


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7.6 Service mode L-



Service menu start



Service mode -- Testing electrical loads --

Output

2 H flashes Press "Up" four times L flashes Service mode selected

3 L flashes Press "SuperFrost" once Ldstatic Service mode activated

4 Ldstatic Press "SuperFrost" once d0static All OFF Electronics active

1.2 W*

5 d0static Press "Up" once d1static Compressor ON**, Low speed; Solenoid valve position B

--

6 d1static Press "Up" once d2static Compressor ON**, High speed: Solenoid valve position A

--

7 d2static Press "Up" once d3static Freezer compartment fan ON

3.1 W*

8 d3static Press "Up" once d4static Freezer compartment heater ON

142 W*

9 d4static Press "Up" once d5static Refrigerator compartment light ON

6.7 W*

10 d5static Press "Up" once d7static Refrigerator compartment fan speed 1***

1.4 W*

11 d7static Press "Up" once d8static Refrigerator compartment fan speed 2***

1.4 W*

12 d8static Press "Up" once dEstatic Freezer compartment light ON

3.2 W*

End Press "ON/OFF" once: Return to level 2 Ed. No further options can be selected for this appliance. Press "ON/OFF" twice: Return to level 1 E-. Points: H.D.P.E-.L selectable. 3x Press "On/Off": Return to normal/control mode.

* Values were determined using CLM1000 measuring device. ** May react with delay. *** The speed settings may vary.


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8.0 Error code, troubleshooting 8.1 Table of error codes

Error code Defective component Emergency mode

Appliance Cooling ON Cooling OFF

F0 BioFresh air sensor

ICBN 3356 21 minutes 42 minutes

F1 Refrigerator compartment air sensor

F2 Refrigerator compartment evaporator sensor

F3 Freezer compartment air sensor

F4 Freezer compartment evaporator sensor

8.2 VCC compressor diagnostic LED

8.2.1 Activating the diagnostic LED

A green LED may flash through the light-permeable cover of the VCC inverter. The diagnostic LED is activated when service mode Ld activated for 60 minutes (diagnosis time). If a valid command is recognised the LED flashes once. If no valid command is recognised the LED flashes twice. If no error is detected by the inverter control and the diagnosis period is not active then the diagnostic LED gives no information.

Fig. 8.2.1/ 1 Inverter with diagnostic LED "OFF" Fig. 8.2.1/ 2 Inverter with diagnostic LED "ON" 8.2.2 Diagnostic LED flash code

Code Cycle Meaning Flashes twice 5 sec. Invalid command or no command received Flashes 3 times 5 sec. Inverter error or break in coil Flashes 4 times 5 sec. Compressor error

The error codes must be processed in succession. Once an error code has been processed, a new error code may appear.

Documents

Appliance Documentation ICBN 3356 from -20