icbs 3156 built-in combination refrigerator icb 3166

ICBS 3156ICB 3166from -20

1 / 46Hidden functionsPartsControlDesignHome Functions Special features

Built-in combination refrigerator BioFresh

1 / 46Home

ICB 3166PremiumPlus

ICBS 3156Premium

Functions



Operating and control elements

Control elements refrigerator BioFresh compartment

1 : SuperCool function, button lit = function switched on

2 : On/Off button

3 : Setting button temperature higher

4 : Setting button temperature lower

5 : Temperature display

Functions

1 2 3 4 5 6 7 8 9 10

Control elements freezer compartment

6 : Setting button temperature higher

7 : Setting button temperature lower

8 : On/Off button

9 : SuperFrost function, button lit = function switched on

10 : Alarm OFF button



Functions at a glance

Functions

• Temperature control: Electronic control system

• Adjustable temperature range: Refrigerator compartment: +4°C to +9°CFreezer compartment -16°C to -26°C

• Temperature display: actual value, digital

• Temperature alarm: Refrigerator compartment: noBioFresh compartment: noFreezer compartment: visual and

audible

• Door alarm: Refrigerator BioFresh comp.: only ICB 3166Freezer compartment: only ICB 3166

• Fan: Refrigerator compartment: yesFreezer compartment: no



Functions at a glance

5 / 46Functions

• Defrosting: Refrigerator compartment: automaticFreezer compartment: manual

• Interior light: Refrigerator compartment: yesBioFresh compartment: only ICB 3166Freezer compartment: only ICB 3166

• SuperCool: Automatic (+4°C / 6 hrs.)

• SuperFrost: Automatic, quantity-controlled, 30 – 65 hours

Design



Schematic diagram

Design

IKB ...4ICBS 3156from -20Premium

LED light housing

Evaporator sensor

BioFresh air sensor

Freezer compartmentair sensor

Air sensor

Fan

Ambient air sensor



Schematic diagram

Design

ICB 3166from -20PremiumPlus

LED light column

Evaporator sensor

BioFresh air sensor

Freezer compartmentair sensor

Air sensor

Fan

Freezer compartment

lighting

Reed PCB

Ambient air sensor



Schematic diagram refrigeration circuit

Design 9 / 46

B A

Refrigerator compartment evaporator

Freezer compartment evaporator

Compressor

Solenoid valve

Condenser

Control



Refrigerator compartment air sensor

Position:In the vertical separating plate.

Control

Air sensor

Depending on this sensor ...- the BioFresh fan switches ON/ OFF.

- the fridge compartment temperature display value is formed.



Evaporator sensor for refrigerator compartment

Position:

In sensor holder on compartment liner rear wall.

Control

Evaporator sensor

Depending on this sensor ...- and the freezer compartment air sensor, the compressor is switched on.

- switches the solenoid valve in A direction (cooling + freezing).

- the defrosting phase is ended.



BioFresh compartment air sensor

Position:

Under horizontal separating plate, clipped into vertical separating plate.

Control

BioFresh air sensor

Depending on this sensor ...- and the freezer compartment air sensor, the compressor is switched off.

- switches the solenoid valve in B direction (only freezer compartment).



Refrigerator BioFresh compartment fan

Position:

In vertical separating plate, at top.

Fan runs, when :- refrigerator-BioFresh door closed and- refrigerator compartment air sensor has reached switch-on value.

• Compressor ON HIGH speed.

• Compressor OFF LOW speed.

Control



Freezer compartment air sensor

Control

Position:

Inserted in sensor holder in liner ceiling.

Depending on this sensor ...- and on the refrigerator compartment evaporator sensor, the compressor switches on.

- and the BioFresh air sensor the compressor is switched OFF.

- the freezer compartment temperature display value is formed.

15 / 46



Disassembling the electronic control system

Remove covers

Parts

Unlock front casing

ICBS 3156from -20Premium




Remove covers

Parts

Unlock front casing

ICB 3166from -20PremiumPlus




Disengage PCB carrier from front panel and disconnect cable

Parts

ICBS 3156

ICB 3166

Note: Cable routing with cable clamp, not via PCBs!



Horizontal separating plate

Disassembling the horizontal separating plate

• Remove upper BioFresh drawer.

• Pull out separating plate, it is not locked.

Parts



Vertical separating plate

Parts

Disassembling the vertical separating plate

• Remove glass shelves.

• Disassemble the horizontal separating plate.

• Remove holding clips at the left and right.

• Disengage BioFresh air sensor.

• Undo fastening screws of separating plate.

• Disconnect fan cable, draw out refrigerator compartment air sensor.

• Assembly: First slide the retaining lugs into the grooves ofthe compartment liner.

Holding clip

Grooves in the compartment liner

Retaining lugs

BioFresh air sensor

Fastening screws




Procedure


• Disassemble horizontal and vertical separating plate.

• Draw air sensor out of the vertical separating plate.

Parts

Air sensor

Air sensor




Parts

Procedure


• Disassemble horizontal and vertical separating plate.

• Detach evaporator sensor holder.

• Disengage evaporator sensor.

Evaporator sensor



BioFresh air sensor

Procedure


• Disengage BioFresh air sensor.

• Disassemble the vertical separating plate.

Parts

BioFresh air sensor



Refrigerator BioFresh compartment fan

Procedure


• Disassemble the vertical separating plate.

• Disconnect fan, draw out refrigerator compartment air sensor.

• Press up holding clips to unlock fan with rubber mount.

• Press the fan out of the upper rubber mount using a screwdriver.Remove the fan upwardly from the lower rubber mount.

Parts

Holding clip



LED interior lightrefrigerator compartment light column

Procedure


• Remove caps and undo screws.

• Unlock and draw off the connector.

• Unlock PCB.

Info: 3 LEDs form one LED group. One LED group lights one supporting rib.If a single LED is defective, only the single LED group is out of operation.

Parts

Plug

ICB 3166PremiumPlus

Cap

LED groups



LED interior lightrefrigerator compartment light housing

Procedure

• Unlock light cover (short screwdriver).

• Undo fastening screws and lift off light housing.

• Draw off connector at the rear.

• Unlock LED lighting unit at the connector and cooling plate.

Parts

ICBS 3156Premium

LED lighting unit

Fastening screws

Light cover



LED interior lightBioFresh compartment

Procedure

• Unlock light cover.

• Unlock LED PCB.

Parts

ICB 3166PremiumPlus

BioFresh interior light



LED interior lightfreezer compartment

Procedure

• Unlatch light cover and remove cover from front.

• Push LED light housing to the right to release it from the cross bar.

• Unlock and pull off connector.

Parts

ICB 3166PremiumPlus

Unlatching light cover

Retaining lugs



Refrigerator compartment door magnet

Parts

Procedure

• Door magnet clipped into the upper side of the door.

• Press locating lugs towards each other and lift out the door magnet.

Door magnetDoor magnet

Locating lugs



Freezer compartment door magnet

Parts

ICB 3166PremiumPlus

Procedure

• Door magnet clipped into underside of the door.

• Unlatch closing damper from ball pivot and detach.

• Insert screwdriver between door magnet and door and lift up door magnet.



Freezer compartment reed PCB

Parts

Procedure

• Lift up cover of Reed PCB.

• Pull Reed PCB out of housing.

• Unlock and pull off connector.

ICB 3166PremiumPlus

Reed PCB

Cover Reed PCB

Locating lug



BioFresh pull-out rail

Disassembling the pull-out rail

• Depress the lock and press the pull-out rail to the rear.

• Holder bar is exchangeable.

Parts

Locating ledge

Pull-out rails


34 / 46Hidden functionsPartsControlDesignHome Functions Special featuresParts

Air sensor

Air sensor

• Push air sensor forwards out of holder.


35 / 46Hidden functionsPartsControlDesignHome Functions Special featuresParts

Cold storage accumulator

Cold storage accumulators

The cold storage accumulators can be locked into place in the interior lining ceiling.



NEW soft stop mechanism

Parts 36 / 46

• Closes automatically from a door opening angle of 30°.

• Soft stop mechanism has to be transferred to the other side if the door hingesare changed.

• Soft stop mechanism is replaceable.

Soft stop mechanism

ICB 3166PremiumPlus

Special features



Support railsfor sectioned glass shelves

• Rails for support of the sectioned glass shelves.

• Support rails are only placed on the ribs of the compartment liner.

• The inside teeth prevent any sliding, the teeth have to be at the bottom.

Support rail

Inside teeth

Special features 38 / 46

Hidden functions



Starting and selecting functions

The service menu comprises functions and testing options for the service technicians as well as activation/deactivation of a demo mode.

Functions: - d1/d0 Demo mode : Appliance is switched on, without refrigeration

- L Service mode : - Test display and controls- Test electrical consumers

- E Sensor test : Request current sensor values

Hidden functions



Demo mode

2b

2a

1

Step

Service menu active.Demo mode selected

"d1" or "d0" flashes together with SuperFrost LED and SuperCool LED

Press On/Off and "SuperFrost" simultaneously for 3 seconds.Actual value

Demo mode OFFSet value +5°C / -18°CPress SuperFrost buttond0

Demo mode (Demo mode can be deactivated only via service menu, not by OFF/ON)Operation is switched to the mode wanted, demo mode or normal, as soon as SuperFrost has been actuated.

Demo mode ONSet value +5°C / -18°CPress SuperFrost buttond1

Service menu start

Testing option / InfoDisplay following operation

OperationDisplay

Hidden functions



Service mode

Service menu active"d1" or "d0" flashes together with SuperFrost LED and SuperCool LED

Press ON/OFF and "Superfrost" simultaneously for 3 seconds.

Actual value1

After step 4, actuation of the last button, a beep sounds.

4

3

2

1

Step

Service mode activated"rd" flashesPress SuperFrost button"L" flashes together with SuperFrost LED and SuperCool LED

Door contact, LEDs, displayAll button LEDs and display segments shineDoors closed and open"rd" flashes

Every button pressed is confirmed by a beep"L0" shinesPress all the buttons one

after the other.All button LEDs and display segments shine

Service mode-- test display LED, door contact, potentiometer --

Service mode selected"L" flashes together with SuperFrost LED and SuperCool LED

Press "Up" once"d1" or "d0" flashes together with SuperFrost LED and SuperCool LED

Service menu start

Testing option / InfoDisplay following operationOperationDisplay

Hidden functions



Service mode

Refrigerator BioFresh compartment fan, high speed

"L8" shines"L7" shines Press the Up button10

Refrigerator BioFresh compartment fan,low speed

"L7" shines"L5" shines Press the Up button9

Light ON"L5" shines"L2" shines Press the Up button8

All OFF"L0" shinesNo operation"L0" shines5- Condenser (low speed)- Solenoid valve in position B"L1" shinesPress the Up button"L0" shines6

End

7

Step

Press "On/Off"

- Condenser (high speed)- Solenoid valve in position A"L2" shinesPress the Up button"L1" shines

Service mode-- testing electric loads--

Testing option / InfoDisplay following operationOperationDisplay

Hidden functions



Sensor test

Freezer compartment air sensor

"E3" flashes alternately with sensor temperaturePress the Up button"E2" flashes alternately with

sensor temperature5



sensor temperature4



sensor temperature3

Service menu active"d1" or "d0" flashes together with SuperFrost LED and SuperCool LED

Press On/Off and "SuperFrost" simultaneously for 3 seconds.

Actual value1

2

1

Step

BioFresh air sensor"E0" flashes alternately with sensor temperaturePress SuperFrost button

"E" flashes together with SuperFrost LED and SuperCool LED

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

Sensor test mode selected"E" flashes together with SuperFrost LED and SuperCool LED

Press "Up" twice"d1" or "d0" flashes together with SuperFrost LED and SuperCool LED

Service menu startTesting option / InfoDisplay following operationOperationDisplay

Hidden functions



Sensor test

Step 8 is for both appliances

Step 7 only for ICB 3166 (freezer compartment lighting)

Press On/Off twiceEnd

Refrigerator BioFresh compartment door contact(0=door closed, 1=door open)

"E9" flashes alternately with "0" or "1"Press the Up button “E8“ flashes alternately with "0" or

"1"8

Freezer compartment door contact(0=door closed, 1=door open)

“E8“ flashes alternately with "0" or "1"Press the Up button"E7" flashes alternately with

sensor temperature7

Ambient air sensor"E7" flashes alternately with sensor temperaturePress the Up button"E3" flashes alternately with

sensor temperature6

Hidden functions



Error code

Appliance controls normally, but without ambient temperature influenceAmbient air sensorru/FU

Compressor endurance runFreezer compartment air sensorF3

compressor 10 min. ON, 40 min. OFFBioFresh air sensorF0

ru is only displayed in the Service menu in After-Sales Service mode (L) instead of rd.FU is only displayed in the Service menu in the sensor test (E) under E7 instead of the sensor value.

F2

F1

Error code

compressor 10 min. ON, 40 min. OFFRefrigerator compartment evaporator sensor

compressor 10 min. ON, 40 min. OFFRefrigerator compartment air sensor

Emergency operationDefective component

46 / 46Hidden functions

icbs 3156 built-in combination refrigerator icb 3166

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