Electrolux ERF2000 User manual

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SERVICE MANUAL
REFRIGERATION
© Electrolux Home Products S.p.A.
Spares Operations Italy
Corso lino Zanussi, 30
I - 33080 Porcia (PN)
Fax [phone]
S.O.I.
Edition: 11.2006
Publication no.
599 38 43-56
EN
REFRIGERATORS
with
electric valve
and
electronic
ERF2000
DIGITS
FACTORY: ZS

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CONTENT
1 INTRODUCTION ....................................................................................................................................... 3
2 REFRIGERATION CIRCUIT...................................................................................................................... 5
3 ELECTRIC WIRING................................................................................................................................... 6
4 COMPONENTS......................................................................................................................................... 8
4.1 Control panel ..................................................................................................................................... 8
4.2 Electronic boards............................................................................................................................... 9
4.2.1 ERF2000 Power board........................................................................................................... 10
4.2.2 ERF2000 DIGITS Display board............................................................................................. 12
4.3 Cooler and freezer compartments................................................................................................... 13
4.3.1 Temperature sensors.............................................................................................................. 14
4.3.2 Door switch............................................................................................................................. 14
4.4 Compressor compartment ............................................................................................................... 14
4.4.1 Electric valve........................................................................................................................... 15
5 MAIN FUNCTIONS.................................................................................................................................. 16
5.1 Normal............................................................................................................................................. 16
5.2 FROSTMATIC Function (rapid freezing) ......................................................................................... 17
5.3 COOLMATIC Function (rapid cooling)............................................................................................. 17
5.4 HOLIDAY Function (valid only for the cooler).................................................................................. 17
5.5 Malfunctioning of cooler air temperature sensor.............................................................................. 18
5.6 Malfunctioning of freezer temperature sensor ................................................................................. 19
6 ALARMS.................................................................................................................................................. 20
6.1 Freezer compartment temperature alarm........................................................................................ 20
7 SPECIAL FUNCTIONS............................................................................................................................ 21
7.1 Service Mode................................................................................................................................... 21
7.1.1 Starting Service Mode ............................................................................................................ 21
7.1.2 Exiting Service Mode.............................................................................................................. 21
7.1.3 Functions of the Service Mode ............................................................................................... 21
7.2 DEMO MODE .................................................................................................................................. 23
7.2.1 Start DEMO MODE................................................................................................................. 23
7.2.2 Exit DEMO MODE.................................................................................................................. 23
7.2.3 Functions of the DEMO MODE............................................................................................... 23
8 ACCESSIBILITY...................................................................................................................................... 24
8.1 Control panel ................................................................................................................................... 24
9 DISPLAY SYMBOLS ............................................................................................................................... 25
9.1 Cooler compartment........................................................................................................................ 25
9.2 Freezer compartment ...................................................................................................................... 26

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1 INTRODUCTION
This manual describes the refrigerators with electric valve and ERF2000 DIGITS electronic produced in the
Susegana factory called ZS.
These models feature:
- static (static freezer, static cooler)
- total built-in
- DOOR ON DOOR door system
- single-compressor
- electronic control (electronic board ERF2000)
- electric valve
- digit display
They are appliances (KBI290DVIT) with the following PNCs:
The controls of the appliance are inserted inside the upper crosspiece.
The power control board is ERF2000.
The user interface board is ERF2000 (DIGIT display).
The appliance has a single-compressor and an electric valve is installed to simulate the operation of a two-
compressor.
It is possible to switch off only the cooler compartment and let the freezer operate, but not vice versa.
PNC MODEL BRAND
925701653 JKG9499 Juno-Electrolux
925701654 SC91840-5I AEG-Electrolux
925701655 SC81840-5I AEG-Electrolux
925701656 SC81840-5I AEG-Electrolux
925701659 ERO2923 Electrolux
925701660 ERO2924 Electrolux
925701661 JKG9499 Juno-Electrolux
925701662 SC91840-5I AEG-Electrolux
925701663 SC91843-5I AEG-Electrolux
925701664 463.688-2 Privileg
925701665 ERO2923 Electrolux
925701666 ERO2923 Electrolux
925701667 DRC629JE De Dietrich
925701668 IKE318-5-2 Küppersbusch
925701669 DRC629JE De Dietrich
925701670 IKE318-5-2 Küppersbusch
925701671 JCG94180 Juno-Electrolux

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The temperatures regulation is the following:
• from +8 to +2 °C for the cooler;
• from -15 to -24 °C for the freezer.
The DIGIT display enables to show the temperatures of the two compartments.
The appliance has the following functions:
• rapid freezing;
• rapid cooling;
• freezer temperature alarm,
• cooler compartment holiday.
The appliance consists of the following compartments:
• freezer;
•cooler.
The evaporating circuit consists of:
• roll bond plate evaporator (freezer);
• tube evaporator (cooler compartment).
Key:
A = control panel
B = cooler compartment
C = freezer compartment

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2 REFRIGERATION CIRCUIT
Key:
1. compressor;
2. condenser;
3. anti-condensation coil;
4. dehydrator filter;
5. electric valve;
6. tube evaporator (cooler compartment);
7. plate evaporator (freezer compartment);
8. exchanger.
The electric valve has 2 outlet capillaries to power:
• cooler + freezer
or
• only the freezer.

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3 ELECTRIC WIRING
(Check the specific diagram for each model!)

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Key:
2. compressor
13. lamp
31. electric valve
28. running capacitor (if featured)
41. ERF2000 power board
a. yellow-green
b. brown
c. blue
d. white
e. black

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4 COMPONENTS
4.1 Control panel
Key:
Cooler compartment
A. cooler ON/OFF indicator LED
B. cooler ON/OFF button
C. cooler temperature increase button (+)
D. cooler temperature displaying
E. cooler temperature decrease button (-)
F. COOLMATIC Function LED (rapid cooling)
G. COOLMATIC function button (rapid cooling)
Freezer compartment
H. ON/OFF indicator LED refrigeratore+freezer
I. ON/OFF button cooler+freezer
J. freezer temperature increase button (+)
K. freezer temperature displaying
L. freezer temperature decrease button (-)
M. FROSTMATIC Function LED (rapid freezing)
N. FROSTMATIC function button (rapid freezing)
O. alarm pilot lamp LED
P. alarm deactivation button

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4.2 Electronic boards
The electronic board of the appliance consists of:
1. ERF2000 power board
2. ERF2000 DIGITS display board
The two electronic boards are connected by means of a flat cable with a connector; therefore, the two boards
are available singularly as spare part.

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4.2.1 ERF2000 Power board
- View of the electronic board (side of components):
1. earth contact
2. free
3. line
4. compressor
5. neutral
6. lamp neutral
7. lamp
8. neutral electric valve
9. electric valve
1. free
2. free

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1. cooler air temperature sensor
2. cooler air temperature sensor
3. cooler evaporator temperature sensor
4. cooler evaporator temperature sensor
5. freezer air temperature sensor
6. freezer air temperature sensor
1. free
2. free
1. free
2. free
3. free
4. free
1. free
2. free

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4.2.2 ERF2000 DIGITS Display board
Key:
SW1 = reed element
SW2 = ON/OFF button cooler+freezer
SW3 = FROSTMATIC function button (rapid freezing)
SW4 = freezer temperature increase button (+)
SW5 = freezer temperature decrease button (-)
SW6 = cooler ON/OFF button
SW7 = COOLMATIC function button (rapid cooling)
SW8 = cooler temperature increase button (+)
SW9 = cooler temperature decrease button (-)
SW10 = alarm deactivation button
DGT1 = cooler display
DGT2 = freezer display
DL1 = COOLMATIC function LED (rapid cooling)
DL2 = FROSTMATIC function LED (rapid freezing)
DL3 = alarm pilot lamp LED
DL4 = LED sign + cooler
DL5 = ON/OFF indicator LED cooler
DL6 = LED sign - freezer
DL7 = ON/OFF indicator LED cooler+freezer

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4.3 Cooler and freezer compartments
Key:
A. freezer air temperature sensor;
B. cooler air temperature sensor;
C. cooler evaporator temperature sensor.
1. cooler door magnet;
2. display board reed element.

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4.3.1 Temperature sensors
3 NTC sensors are used to detect the temperatures of the two compartments:
• freezer air temperature sensor A (located on the freezer cell);
• cooler air temperature sensor B (located on the cooler cell);
• cooler evaporator temperature sensor C (located on the cooler cell).
The sensors A, B and C feature the foamed cable inside the cabinet, therefore they are not replaceable (for
further information, please see Service Bulletin 599374122).
4.3.2 Door switch
The control of the cooler door opening is carried out by using the magnetic switch located on the display board.
The magnetic switch is activated by a magnet located inside the cooler door.
The control does not imply the activation of the open door alarm, but it is used to light up the lamp of the cooler
compartment.
4.4 Compressor compartment
Key:
A. compressor
B. electric valve

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4.4.1 Electric valve
The electric valve is of the 3-way bistable type.
It is supplied together with the dehydrator filter.
The connections of the electric valve are the following:
- central hose with dehydrator filter to connect the condenser;
- side hose (GS) to connect the capillary of the freezer circuit;
- side hose (KS) to connect the capillary of the cooler+freezer circuit.
The electric valve has the following values:
- voltage 220 V - 50 Hz
- response time <1 sec
Note:
Comply with the electric connections and do not invert the polarity (the 2 terminals FAST-ON have different
dimensions).

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5 MAIN FUNCTIONS
5.1 Normal
In case of first switching on with a freezer compartment temperature higher than 10 °C, the appliance operates
with a test cycle (for the factory) for a maximum time of about 1,5 hours.
In this period do not perform tests for the correct operation of the appliance, since the loads of the appliance
are activated only for internal check (compressor and electric valve).
When the appliance is off then:
• the compressor is off;
• the displays are off.
Pushing the ON/OFF button, the displays switch on with the following displaying:
• + symbol on cooler display;
• flashing digits of the freezer;
• freezer temperature alarm LED (buzzer active).
Push the alarm deactivation button to deactivate the buzzer.
Regulate the temperatures of the compartments so as to set the following values:
• about +5 °C in the cooler;
• about -18 °C in the freezer.
Warning: Unplug the appliance before operating.

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5.2 FROSTMATIC Function (rapid freezing)
The FROSTMATIC function (rapid freezing) is activated by pushing the relative button, therefore:
• The pilot lamp relative to the FROSTMATIC function lights up;
• The compressor operates in thermostatic conditions and not continuously (like the temperature knob was
on max. position) for a duration of about 52 hours, and then it deactivates automatically.
To deactivate the FROSTMATIC function push the relative button.
5.3 COOLMATIC Function (rapid cooling)
The COOLMATIC function (rapid cooling) is activated by pushing the relative button, therefore:
• The pilot lamp relative to the COOLMATIC function lights up;
• The compressor operates in thermostatic conditions and not continuously (like the temperature knob was
on max. position) for a duration of about 6 hours, and then it deactivates automatically.
To deactivate the COOLMATIC function push the relative button.
5.4 HOLIDAY Function (valid only for the cooler)
The HOLIDAY function is activated when the customer does not want to use temporary the cooler.
In this case it is not necessary to leave the cooler door open, because a 15 °C temperature is automatically set
to avoid the formation of bad odours inside.
To activate the HOLIDAY function push button + (temperature increase) till letter H is shown in the cooler dis-
play.
Obviouslythecoolermustbeempty because the 15 °Ctemperaturedoesnotallowthepreservationof the most
common food.

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5.5 Malfunctioning of cooler air temperature sensor
If during the normal operation a failure occurs to the cooler NTC temperature sensor (the signal coming from
the sensor is out of range), then:
When the sensor operates again normally, the above described conditions terminate.
Characteristics of the NTC sensor:
• The display shows cooler temperature sensor faulty.
• The appliance operates with preset cycle when the compressor is powered for 40 minutes and
remains off for 40 minutes alternatively.

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5.6 Malfunctioning of freezer temperature sensor
If during the normal operation a failure occurs to the freezer NTC temperature sensor (the signal coming from
the sensor is out of range), then:
When the sensor operates again normally, the above described conditions terminate.
Characteristics of the NTC sensor:
• The display shows freezer temperature sensor faulty.
• The appliance operates with preset cycle when the compressor is powered for 40 minutes and
remains off for 40 minutes alternatively.

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6ALARMS
6.1 Freezer compartment temperature alarm
When the freezer compartment reaches -11 °C, the temperature alarm activates:
Push the alarm deactivation button to deactivate the buzzer.
When normal conditions are reset (after a power failure):
Pushing the alarm deactivation button:
• The display digits flash.
• The temperature alarm pilot lamp light up.
• The buzzer sounds.
• The acoustic signal deactivates.
• The temperature alarm pilot lamp remains on.
• The display digits still flash.
• The highest temperature reached in the freezer compartment is displayed for 5 minutes.
• The alarm pilot lamp switches off.
• The display digits do not flash anymore.