Refrigerators K(es) KP(es)

Upright Refrigerators

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Upright refrigerator

Vegetable bins

Refrigerator with or without 4-star freezer compartment

Bottle shelf

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Control elements

Appliance without 4-star freezer compartmentAppliance without 4-star freezer compartment

The appliance is equipped with a single compressor.

• Control knob for switching the appliance ON/OFF and for setting the temperature

• Ventilation button for switching the fan ON/OFF• SuperCooling button for switching the refrigerator to the coldest setting

for 6 hours

The appliance is equipped with a single compressor.


• Ventilation button for switching the fan ON/OFF• SuperCooling button for switching the refrigerator to the coldest setting

for 6 hours

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Control elements

Appliance with 4-star freezer compartmentAppliance with 4-star freezer compartment

The appliance is equipped with a single compressor. The freezer temperature is controlled in dependence of the refrigerator temperature.


• Ventilation button for switching the fan ON/OFF• SuperFrost button for freezer compartment; interior light operates

at half power

The appliance is equipped with a single compressor. The freezer temperature is controlled in dependence of the refrigerator temperature.


• Ventilation button for switching the fan ON/OFF• SuperFrost button for freezer compartment; interior light operates

at half power

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Sensor functions

• Switches the fan ONFan runs in parallel to the compressor

Ventilation(dep. on model) ON

• Control lamp lights up• Switches the appliance to the coldest control setting

for 6 hours• Display reads 1°C• Fan on permanently (even when compressor is idle)

SuperCooling (no 4*) ON

• Control lamp lights up• Interior light operates at half power (winter heater)• Control setting > +5°C -> reference setting +5°C• Control setting < +5°C -> reference setting• Display not changed whilst SuperFrost activated• Switches off automatically after 65 hours

SuperFrost (with 4*) ON

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Sensor functions

• Switches the compressor ON and OFFEvaporator sensor

• Switches the winter heater (bulb lights at half power) on at low ambient temperatures (below+19°C)

Ambient air sensor(operating panel board)

Removing the Electronic Controls

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Dismantling the front housing

The front housing must be dismantled in order to replace the electronic controls.

Remove cover caps

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Prise off cover

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Remove Torx screws

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The cable routing has been adapted so that the front housing may be placed onto the appliance top.

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The board support must be detached in order to remove the electronic controls.

Removing the Electronic Controls on Aluminium and

Stainless Steel Appliances

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Installation instructionsRemoving the electronic controls

Detach covers

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Remove Torx screws

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Remove front housing

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Disconnect connectors

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Detach board support

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Detach board

New Strain Relief Device

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Installation instructionsDetaching the strain relief device

Unclip ventilation grill by pulling upwards

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Remove Torx screws(different attachment methods:

2 screws on the left and right or 1 in the centre)

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Release lips

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The strain relief device can now be removed to the rear.

3-series ElectronicsService Menu

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Operation

e.g. C 3523-20

Service menu operationStarting position: All control knobs set to “0”

Combined refrig.-freezers: SF button + Freezer control knobFreezers: SF button + Freezer control knobRefrigerators: SC or SF button + Refrigerator

control knob

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Mode selection

Normal operation

No Demo andCS modes on

CN ...3

! !

Control knob Control knobMode sel.

1 / -32QA mode

Activation of

consumers

QA mode (reserved for

factory testing)

Demo mode(Sales mode)

7 / -18Demo

5 / -21CS mode

Manual

defrosting

-15Defrosting

e.g. C 3523-20

SF LED flashes

SF SF SF

No button pressed for 2 min.: switch-over to normal operating mode

No automatic switch-over to normal mode

All modes are available (e.g. Defrosting not applicable to C 3523)

SF + Control knob 0 -> max.

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Mode selection video

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Manual defrosting

Normal operation

Mode sel.

Manual defrosting on NoFrost appliances (only when the evaporator is cold)

CN: Heater switched on and off by bimetallic switch: OFF at +8°C and ON at -2°C Display: SF LED and -15°C LED flash as long as the heater is ONHeater OFF only by: setting freezer control knob to “0” or mains OFF

GN: max. defrosting time: 50 minutes or until evaporator sensor reads +10°CDisplay: Reference settings

e.g. C 3523-20

SF LEDflashes

SF


Control knob Control knob

5 / -21CS mode

1 / -32QA mode

-15Defrosting

7 / -18Demo

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Demo mode

Normal operation

Mode sel.

7 / -18Demo

-15Defrosting

Freezer LED

-18 flashes Demo mode OFF

-18 flashes rapidly Demo mode ON

Demo mode

ON

OFF

e.g. C 3523-20

SF LEDflashes

SF

SF



5 / -21CS mode

1 / -32QA mode

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Demo mode NEW FEATURE

IMPORTANT: NEW FEATURE!

On

combined refrigerator-freezers andNoFrost appliances

Demo mode remains active even after

mains OFF/ON!

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Demo mode video

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CS mode: Operating panel test

Normal operation

Mode sel.

e.g. C 3523-20


SF LEDflashes


5 / -21CS mode

Operating panel test (freezers without NoFrost system start the operating panel test at step 2)

The LEDs are activated in turn in steps 1 – 3 (light up).

1. Open/Close refrigerator door2. Set RC + FC control knobs from “0” to “max.” and from “max.” to “0”3. Press each button once

SF

1 / -32QA mode

-15Defrosting

7 / -18Demo

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CS mode: Load sequence

Refrigerator Freezer Load sequence

LED LED

9 / -15 All consumers OFF

-18 Freezer compressor ON, solenoid valve: B

7 Refrigerator compressor ON, solenoid valve: A

-21 Freezer fan ON

-25 Defrost heater ON

1 / -32 Light ON

5 Refrigerator fan ON

3 Refrigerator heater ON

B: Freezer comp. A: Refrigerator and freezer comp.

Operating panel test OK

To quit CS mode: Set freezer control knob to “0”

SF

SF

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CS mode video

3-series ElectronicsError Code

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Error code

Error code display (flashing SF LED + audible warning signal)

Display Defect

Refrigerator LED 7 Ambient air sensorRefrigerator LED 5 BioFresh air sensorRefrigerator LED 3 Refrigerator evaporator sensorRefrigerator LED 1 Refrigerator air sensor

Freezer LED -15 Freezer air sensorFreezer LED -18 Freezer evaporator sensorFreezer LED -25 Ambient air sensor

An ambient air sensor error is checked and displayed only during the operating panel test

3-series ElectronicsSensor Values

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Sensor values

Sensor values of the new electronic control systemCommon sensor values for cooling, BioFresh, freezing

112.7-35

34-15

156-40

82.3-30

60.7-25

45.3-20

25.8-10

19.8-5

15.30

11.95

9.310

7.315

5.820

4.725

Resistance[kOhm]

Temperature[°C]

3-series Electronics Data

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Electronics data

Electronics data

Display: Reference setting display/adjustment

SuperCooling: 6 hours, reference setting +1°C

SuperFrost: 65 hours, reference setting -39°C (CN: -32°C)

RC compressor continuous operation limited to: 4 hours

Compressor reactivation delay: 8 minutes

Light OFF when door open: 15 minutes

Emergency operation (only in the event of a sensor error)

Refrigerator compressor: Cyclic operation

Freezer compressor: Continuous operation

Door alarm: After 60 seconds, only on NoFrost appliances

Temperature alarm: From -8°C, t > 90 min. or -10°C, t > 30 min.

Temperature alarm or sensor error: Audible warning signal + flashing visual

warning LED, signal can be cancelled (LED lit)

(Not all 3-series electronics are equipped with an audible warning signal)

Refrigerators K(es) KP(es)

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