Electrolux ERF2000 User manual

SERVICE MANUAL
REFRIGERATION
PB = POWER BOARD
VB = DISPLAY BOARD
© ELECTROLUX ZANUSSI S.p.A. Publication no.
Spares Operations Italy 599 35 61-03
Corso Lino Zanussi, 30 021218
I - 33080 PORCIA / PN (ITALY) ITZ/SERVICE/AA
Fax [phone]
Revision: 01 (250108)
ERF2000
Functions of the
electronic
boards

ERF2000 Functions of the electronic boards Rev. 01 2/30

ERF2000 Functions of the electronic boards Rev. 01 3/30
CONTENTS
1. INTRODUCTION................................................................................................................................................. 5
2. PICTURES........................................................................................................................................................... 9
2.1 PB .................................................................................................................................................................. 9
2.2 ALFA 2C....................................................................................................................................................... 10
2.3 BI 1C............................................................................................................................................................ 11
2.4 BI 2C............................................................................................................................................................ 12
2.5 DELTA 2C.................................................................................................................................................... 13
2.6 D3 1C........................................................................................................................................................... 14
2.7 ALFA 1C....................................................................................................................................................... 15
3. CONTROL FUNCTIONS................................................................................................................................... 16
3.1 Switching the appliance on and off.............................................................................................................. 16
3.2 Regulation of the freezer temperature......................................................................................................... 16
3.3 Control of freezer compartment................................................................................................................... 16
3.4 Fast-freezing function .................................................................................................................................. 16
3.5 Freezer compartment display...................................................................................................................... 17
3.6 Regulation of the temperature in the refrigerator compartment................................................................... 17
3.7 Control of refrigerator compartment............................................................................................................. 17
3.8 Holiday function of the refrigerator ( only in cooler and in some cooler compartments of the two-
compressor appliances ).................................................................................................................................... 17
3.9 SUPER COOLING Function of the refrigerator........................................................................................ 18
3.10 Display of the refrigerator compartment................................................................................................... 18
3.11 Demo Mode .............................................................................................................................................. 18
4. ALARMS............................................................................................................................................................ 19
4.1 Freezer compartment temperature alarm................................................................................................... 19
4.2 Refrigerator compartment temperature alarm (optional)............................................................................ 19
4.3 Door open alarm (optional)......................................................................................................................... 19
4.4 Electronic boards incompatibility alarm ...................................................................................................... 20
4.5 Eeprom error alarm...................................................................................................................................... 20
5. NTC-SENSORS FAULT.................................................................................................................................... 21
6. DISPLAY SYMBOLS........................................................................................................................................ 23
7. SPECIAL FUNCTIONS ..................................................................................................................................... 25
7.1 Changing the temperature area of the freezer (optional) ............................................................................ 25
7.2 Devices check programme.......................................................................................................................... 25
7.3 Check programme of the EEPROM code, the software version and the failure code................................. 25
7.4 EEPROM Error function............................................................................................................................... 26
7.5 Fast guide to the special functions .............................................................................................................. 27
8. VERSIONS........................................................................................................................................................ 28
8.1 Version for 4 stars........................................................................................................................................ 28
8.1.1 Fast freezing function in the 4 stars (FROSTMATIC)........................................................................... 28
8.1.2 Balancing heater with automatic activation ( 4 stars )........................................................................... 28
8.2 Version for DYNAMIC COOLER.................................................................................................................. 28
8.2.1 Differences between the dynamic cooler model and a traditional model.............................................. 28
8.2.2 Quick Chill ............................................................................................................................................. 28
8.2.3 Effect on the loads of the door opening in DME (Dynamic Mini Evaporator) appliances..................... 29
Appendix A ............................................................................................................................................................ 30
Revisions............................................................................................................................................................ 30

ERF2000 Functions of the electronic boards Rev. 01 4/30

ERF2000 Functions of the electronic boards Rev. 01 5/30
1. INTRODUCTION
In this manual are described the functions of the electronic boards called ERF2000 which are mounted on the
new electronic appliances.
The ERF2000 electronic control always consists of 2 separable elements:
A VB display board which feature different versions according to the functions and the styling of the
appliance. The main components are the displays, the pushbuttons, the LEDs, the door switch and a
EEPROM memory in which both the appliance state (useful in case of a power interruption) and the
control and configuration parameters of the appliance are memorized;
A PB power board which contains the micro-controller (inside which there are the 2 RAM and ROM
memories), the AC/DC transformer, the triacs of loads power, the buzzer and the protections of the
electronic board.
Aim of this manual is to fully describe the standard functions of an appliance controlled by the new ERF2000
electronic and the operation of the service mode to check the efficiency of the electronic.
Warning: the power board, the display board and all the cables (the sensor cables included)
are powered with a voltage of 220-240V 50Hz even if the ON/OFF key is set on (OFF). Therefore,
disconnect the appliance before operating on the electronic board.

ERF2000 Functions of the electronic boards Rev. 01 6/30
The ERF 2000 range features the following series of models:
ref Electronic board Board version Software version eeprom title
1 power ERF2000P-01.A NFBF0A0R - 4 triacs
2 power ERF2000P-01.B NFBF0A0R - 3 triacs
3 power ERF2000P-01.C NFBF0A0R - 2 triacs
4 display ERF2000D-03.A - F004F ALFA 2C
5 display ERF2000D-03.A - F0006 ALFA 2C
6 display ERF2000D-03.A - F0001 ALFA 2C
7 display ERF2000D-03.A - F0003 ALFA 2C
8 display ERF2000D-03.A - F005B ALFA 2C
9 display ERF2000D-03.A - F0071 ALFA 2C
10 display ERF2000D-06.B - F002E BI 1C
11 display ERF2000D-06.B - F002F BI 1C
12 display ERF2000D-06.A - F0030 BI 1C
13 display ERF2000D-06.A - F0031 BI 1C
14 display ERF2000D-05.A - F0066 BI 2C
15 display ERF2000D-05.B - F0065 BI 2C
16 display ERF2000D-05.A - F0064 BI 2C
17 display ERF2000D-01.B - F005F DELTA 2C
18 display ERF2000D-01.C - F0020 DELTA 2C
19 display ERF2000D-01.C - F0027 DELTA 2C
20 display ERF2000D-02.B - F0061 D3 1C
21 display ERF2000D-02.B - F0025 D3 1C
22 display ERF2000D-02.D - F0041 D3 1C
23 display ERF2000D-02.D - F0062 D3 1C
24 display ERF2000D-02.B - F0043 D3 1C
25 display ERF2000D-02.A - F005C D3 1C
26 display ERF2000D-02.A - F005D D3 1C
27 display ERF2000D-02.D - F005E D3 1C
28 display ERF2000D-02.A - F0067 D3 1C
29 display ERF2000D-02.A - F0068 D3 1C
30 display ERF2000D-02.B - F0072 D3 1C
31 display ERF2000D-02.A - F0070 D3 1C
32 display ERF2000D-04.A - F0029 ALFA 1C
33 display ERF2000D-04.A - F002B ALFA 1C
34 display ERF2000D-04.A - F002D ALFA 1C
35 display ERF2000D-04.A - F0063 ALFA 1C
36 display ERF2000D-04.A - F0052 ALFA 1C
NOTE:
The power boards with 2 or 3 triacs (for the 2 and 3-load control) are interchangeable with the one featuring 4
triacs (for the 4-load control). Therefore, for unification, the power boards with 2 and 3 triacs are replaced by the
power board with 4 triacs.

ERF2000 Functions of the electronic boards Rev. 01 7/30
ref Model Not mounted optional components
1
2 GTH4
3 GTH2; GTH4;
4 DME MA
5 266 REX
6 316/346 ZS
7 316/346
8 MA-KSV20042 VALVE
9 MA-KSV18048 VALVE
10 ADAPTIVE COOLER AEG FI room NTC sensor; DL2; SW5;
11 ADAPTIVE COOLER QUELLE FI room NTC sensor; DL2; SW5;
12 4 STARS BI AEG -
13 4 STARS BI QUELLE -
14 1780 BI AEG room NTC sensor;
15 1780 BI QUELLE room NTC sensor; DL7; SW2; SW7; DL1; SW3; DL2;
16 1780 BI ELECTROLUX room NTC sensor;
17 COMBI 2C QUELLE MA room NTC sensor; SW5; SW9; LD3; LD6; LD1A; LD3A; LD6A; LD7A;
18 266 REX room NTC sensor; SW1; LD1A; LD3A; LD6A; LD7A;
19 316/346 REX ZS room NTC sensor; SW1; LD1A; LD3A; LD6A; LD7A;
20 ZS QUELLE 186/156 FZ room NTC sensor; SW1; SW10; LD7; LD4A; LD6A; LD7A;
21 ZS QUELLE226 FZ room NTC sensor SW1; SW10; LD7; LD4A; LD6A; LD7A;
22 MA FZ STD QUELLE room NTC sensor; SW10; LD7; LD4A; LD6A; LD7A;
23 MA FZ MAXI QUELLE room NTC sensor; SW10; LD7; LD4A; LD6A; LD7A;
24 296 C ZAN room NTC sensor; SW1; LD4A; LD7; SW10; LD6A; LD7A;
25 MA ELUX FSX14532 room NTC sensor; LD4A; LD6A; LD7A;
26 MA ELUX FSX16532 FSX18532 room NTC sensor; LD4A; LD6A; LD7A;
27 MA QUELLE FSX16532 FSX18532 room NTC sensor; SW10; LD7; LD4A; LD6A; LD7A;
28 MA AEG FSX14532 room NTC sensor; LD7; LD4B; LD6/LD6B;
29 MA AEG FSX16532 FSX18532 room NTC sensor; LD7; LD4B; LD6/LD6B;
30 MA ZAN COOLER STD room NTC sensor; SW10; LD4A; LD7; LD6A; LD7A;
31 MA ZAN FREEZER STD room NTC sensor; LD4A; LD6A; LD7A;
32 156 FZ room NTC sensor; SW1;
33 186 FZ room NTC sensor; SW1;
34 226 FZ room NTC sensor; SW1;
35 FZ MAXI MA room NTC sensor;
36 FZ STD MA room NTC sensor;

ERF2000 Functions of the electronic boards Rev. 01 8/30
ref Notes Picture
1 4 triacs; PB
2 3 triacs; PB
3 2 triacs; PB
4 ALFA 2C
5 ALFA 2C
6 ALFA 2C
7 ALFA 2C
8 ALFA 2C
9 ALFA 2C
10 DL1 e DGT1=red; BI 1C
11 DL1 e DGT1=green; BI 1C
12 DL1 e DGT1=red; DL2=yellow COOLMATIC; BI 1C
13 DL1 e DGT1=green; DL2=yellow COOLMATIC; BI 1C
14 DGT1,DL4,DGT2 e DL6=red; BI 2C
15 DGT1,DL4,DGT2 e DL6=green; BI 2C
16 DGT1,DL4,DGT2 e DL6=green; BI 2C
17 LD2,LD5,DISP1 e DISP2=green; DELTA 2C
18 LD2,LD5,DISP1 e DISP2=green; DELTA 2C
19 LD2,LD5,DISP1 e DISP2=green; DELTA 2C
20 LD5 e DISP2=green; LD6B=red; D3 1C
21 LD5 e DISP2=green; LD6B=red; D3 1C
22 LD5 e DISP2=green; LD6B=red; D3 1C
23 LD5 e DISP2=green; LD6B=red; D3 1C
24 LD5 e DISP2=green; LD6=yellow; D3 1C
25 LD5 e DISP2=green; LD6=yellow; D3 1C
26 LD5 e DISP2=green; LD6=yellow; D3 1C
27 LD5 e DISP2=green; LD6B=red; D3 1C
28 LD5 e DISP2=red; D3 1C
29 LD5 e DISP2=red; D3 1C
30 LD5 e DISP2=green; LD6=yellow; D3 1C
31 LD5 e DISP2=green; LD6=yellow; D3 1C
32 - ALFA 1C
33 - ALFA 1C
34 - ALFA 1C
35 - ALFA 1C
36 - ALFA 1C

ERF2000 Functions of the electronic boards Rev. 01 9/30
2. PICTURES
2.1 PB
KEY:
GTH1 = FREEZER COMPRESSOR TRIAC;
GTH2 = REFRIGERATOR COMPRESSOR TRIAC;
GTH3 = LAMP TRIAC;
GTH4 = FAN TRIAC;
VDR = OVERVOLTAGE PROTECTION;
FUSE = GENERIC PROTECTION;
T = TRANSFORMER;
BZ = BUZZER;
µC = MICRO-CHECKER;

ERF2000 Functions of the electronic boards Rev. 01 10/30
2.2 ALFA 2C
KEY:
SW1 = REED ELEMENT;
SW2 = REFRIGERATOR ON/OFF BUTTON;
SW3 = REFRIGERATOR TEMPERATURE INCREASE BUTTON;
SW4 = REFRIGERATOR TEMPERATURE DECREASE BUTTON;
SW5 = REFRIGERATOR “SUPER COOLING” BUTTON;
SW6 = FREEZER ON/OFF BUTTON;
SW7 = FREEZER TEMPERATURE INCREASE BUTTON;
SW8 = FREEZER TEMPERATURE DECREASE BUTTON;
SW9 = FREEZER “SUPER” BUTTON;
SW10 = ALARM RESET BUTTON;
DISP1 = REFRIGERATOR DISPLAY;
DISP2 = FREEZER DISPLAY;
LD3 = REFRIGERATOR “SUPER COOLING” LED;
LD5 = SYMBOL - LED;
LD6 = FREEZER SUPER LED;
LD7 = ALARM LED;

ERF2000 Functions of the electronic boards Rev. 01 11/30
2.3 BI 1C
KEY:
SW1 = ON/OFF BUTTON;
SW2 = TEMPERATURE INCREASE BUTTON;
SW3 = TEMPERATURE INCREASE BUTTON;
SW4 = FREEZER “SUPER” BUTTON;
SW5 = ALARM RESET BUTTON;
SW6 = REED ELEMENT;
DGT1 = DISPLAY;
DL1 = SYMBOL - LED;
DL2 = ALARM LED;
DL3 = FROSTMATIC LED;
DL4 = ON/OFF LED;

ERF2000 Functions of the electronic boards Rev. 01 12/30
2.4 BI 2C
KEY:
SW1 = REED ELEMENT;
SW2 = FREEZER ON/OFF BUTTON;
SW3 = FREEZER “SUPER” BUTTON;
SW4 = FREEZER TEMPERATURE INCREASE BUTTON;
SW5 = FREEZER TEMPERATURE DECREASE BUTTON;
SW6 = REFRIGERATOR ON/OFF BUTTON;
SW7 = REFRIGERATOR “SUPER COOLING” BUTTON;
SW8 = REFRIGERATOR TEMPERATURE INCREASE BUTTON;
SW9 = REFRIGERATOR TEMPERATURE DECREASE BUTTON;
SW10 = ALARM RESET BUTTON;
DGT1 = REFRIGERATOR DISPLAY;
DGT2 = FREEZERDISPLAY;
DL1 = FREEZER “SUPER” LED;
DL2 = REFRIGERATOR FROSTMATIC LED;
DL3 = ALARM LED;
DL4 = SYMBOL + LED;
DL5 = REFRIGERATOR ON/OFF LED;
DL6 = LED SYMBOL -;
DL7 = FREEZER ON/OFF LED;

ERF2000 Functions of the electronic boards Rev. 01 13/30
2.5 DELTA 2C
KEY:
SW1 = REED ELEMENT;
SW2 = REFRIGERATOR-FREEZER ON/OFF BUTTON;
SW3 = REFRIGERATOR TEMPERATURE INCREASE BUTTON;
SW4 = REFRIGERATOR TEMPERATURE DECREASE BUTTON;
SW5 = REFRIGERATOR “SUPER COOLING” BUTTON;
SW6 = FREEZER TEMPERATURE DECREASE BUTTON;
SW7 = FREEZER TEMPERATURE INCREASE BUTTON;
SW9 = FREEZER “SUPER” BUTTON;
SW10 = ALARM RESET BUTTON;
DISP1 = REFRIGERATOR DISPLAY;
DISP2 = FREEZER DISPLAY;
LD1 = REFRIGERATOR ON/OFF LED;
LD2 = SYMBOL + LED;
LD3 = FREEZER “SUPER” LED;
LD5 = SYMBOL - LED;
LD6 = REFRIGERATOR FROSTMATIC LED;
LD7 = ALARM LED;

ERF2000 Functions of the electronic boards Rev. 01 14/30
2.6 D3 1C
KEY:
SW1 = REED ELEMENT;
SW6 = FREEZER ON/OFF BUTTON;
SW7 = FREEZER TEMPERATUER INCREASE BUTTON;
SW8 = FREEZER TEMPERATURE DECREASE BUTTON;
SW9 = FREEZER “SUPER” BUTTON;
SW10 = ALARM RESET BUTTON;
DISP2 = FREEZER DISPLAY;
LD4A/B= FREEZER ON/OFF LED;
LD5 = SYMBOL - LED;
LD6/6B = SUPER / RESET ALARM LED;
LD6A = “SUPER” LED;
LD7/7A = ALARM RESET LED;

ERF2000 Functions of the electronic boards Rev. 01 15/30
2.7 ALFA 1C
KEY:
SW1 = REED ELEMENT;
SW6 = FREEZER ON/OFF BUTTON;
SW7 = FREEZER TEMPERATURE INCREASE BUTTON;
SW8 = FREEZER TEMPERATURE DECREASE BUTTON;
SW9 = FREEZER “SUPER” BUTTON;
SW10 = ALARM RESET BUTTON;
DISP1 = REFRIGERATOR DISPLAY;
DISP2 = FREEZER DISPLAY;
LD5 = SYMBOL - LED;
LD6 = FREEZER “SUPER” LED;
LD7 = ALARM LED;

ERF2000 Functions of the electronic boards Rev. 01 16/30
3. CONTROL FUNCTIONS
3.1 Switching the appliance on and off
To start a compartment you need to press the ON/OFF button, respectively for the refrigerator and the freezer. It
starts immediately.
To switch off the compartment you need to press the ON/OFF button for at least 1 second. The switching off can
be accompanied by an optional countdown and the display shows 3, 2, 1 sequentially.
In some appliances the ON/OFF button controls the switching on of both the compartments (refrigerator and
freezer) and the switching off of the single compartment is integrated in the temperature increase button by
selecting the maximum temperature position.
By pushing the temperature decrease button, the compartment switches on again with the last set value.
3.2 Regulation of the freezer temperature
To modify the freezer set temperature, push the temperature increase or decrease button. The temperature can
be set between the values –15°C and –24°C.
Once the temperature increase or decrease button has been pressed, the display flashes for 5 seconds showing
the set temperature. It is possible to modify the set temperature by pushing the temperature increase or
decrease within these 5 seconds. The display stops flashing and shows the temperature detected inside the
freezer.
The minimum On time of the compressor is 1-2 minutes.
The minimum Off time varies from 5 to 20 minutes.
3.3 Control of freezer compartment
The switching on and off of the compressor of the freezer compartment are controlled by the air sensor of the
freezer.
3.4 Fast-freezing function
The Super function is activated through the actioning of the Super button, therefore:
the led corresponding to the Super function lights (if featured) and the display shows “A” or “SP” or the
measured temperature (depending on the models);
the compressor runs continuously for a fixed time and stops when the set Super cut-out temperature is
reached or, if this temperature is never reached, at the end of a max. prefixed time (about 52 hours).
If the button is pressed again the Super function deactivates:
the corresponding led switches off (if featured);
the compressor functions in thermostatic conditions.
In some models the fast-freezing function is activated through the actioning of the temperature decrease button
till the max cold position is reached (above -24°C). In this case to disconnect the Super function, push the
temperature increase button and select a new setting.

ERF2000 Functions of the electronic boards Rev. 01 17/30
3.5 Freezer compartment display
The thermometer indicates the temperature of the warmest part in the freezer compartment. This means that the
other temperatures of the freezer (measured through an ordinary thermometer) will always be lower than those
indicated on the thermometer. The temperature difference between the central part of the compartment (which
must not be measured in direct contact with the evaporator) and the warmest part of the freezer is included
between 3º and 7ºC. To avoid false variations from the set value a stabilization window of the displayed
temperature of +/- 3º C has been introduced. At temperatures included between this interval the set value is
indicated.
At temperatures not included between this interval the real value is indicated. The freezer thermometer updates
the shown temperature of 1º C every 4-20 min. (according to the versions) when temperature decreases and
every 4-25 min. when temperature increases.
Attention: to eliminate the updating delay of the temperature, disconnect the appliance and connect it again.
3.6 Regulation of the temperature in the refrigerator compartment
To modify the set temperature in the freezer compartment it is necessary to push the temperature increase or
decrease button. The temperature that can be set goes from +2°C up to +8°C for all the models except from
some Electrolux models by which the temperatures go from +1°C up to +9°C.
Once the temperature increase or decrease button has been pushed, the display flashes for 5 seconds showing
the set temperature. The display stops flashing and shows the temperature detected inside the refrigerator.
The min On time of the compressor in the refrigerator compartment is 1-2 min.
The min. Off time is 5 min.
3.7 Control of refrigerator compartment
The compressor is activated when both the air sensor and the evaporator sensor detect the cut-in temperature
and is deactivated when the temperature detected by the air sensor reaches the cut-out temperature.
Only for 4-star models, at low room temperatures (room temperature lower than +20°C ) a balancing heater is
automatically activated, by means of a sensor placed on the display board (VB) or the lighting lamp is switched
on partially with a 1-minute delay after the door closure.
Attention!
It is possible, therefore, that checking the efficiency of the switching off of the light, the lamp lights even if the
door is closed, this does not imply that the door light switch functions badly.
To check if the light switches off correctly, it is necessary to check if the lamp is off within 1 minute after the door
closure (after that time the lamp might be on because it is controlled by the electronic board!).
3.8 Holiday function of the refrigerator ( only in cooler and in some cooler compartments of the two-
compressor appliances )
The max. temperature that can be set in the refrigerator compartment reaches +8°C (+9°C for some Electrolux
models).
Pushing again the temperature increase button after reaching +8°C (+9°C for some Electrolux models), the
symbol “H” appears on the display to indicate that Holiday function is switched on.
With the Holiday function the refrigerator temperature is kept at +14°C.
This temperature does not allow preserving the food, but it is very useful when the refrigerator compartment is
not used, since it avoids the formation of bad odours.
To deactivate the function it is necessary to set another temperature so as to the symbol “H” disappears from the
display.

ERF2000 Functions of the electronic boards Rev. 01 18/30
At the end of the Holiday function, the temperature alarm of the refrigerator compartment will be switched on
with a 2-hour delay.
3.9 SUPER COOLING Function of the refrigerator
Pushing the super cooling button of the refrigerator the super cooling function is activated and the refrigerator
temperature is automatically set at +2°C.
The function deactivates automatically after about 6 hours or by pushing the super cooling button again.
The corresponding led lights to indicate that the function is active. The display shows “SP” or “A” or the real
temperature of the refrigerator compartment (according to the models).
In some models the super cooling function can be integrated in the temperature decrease button by setting the
max. cold position.
3.10 Display of the refrigerator compartment
The thermometer indicates the average temperature in the refrigerator compartment. The temperature varies
according to the compartment type. To avoid false variations compared to the set value, a stabilization window
of the shown temperature of +/- 3º C has been introduced. The set value is indicated for the temperatures
included between this interval.
The real value is indicated for temperatures not included between this interval. The refrigerator thermometer has
an updating speed of the shown temperature of 1º C every 2-10 min. (according to the versions) both when the
temperature increases and decreases.
3.11 Demo Mode
The Demo Mode function regards the market activity and not the user.
By pushing the temperature decrease button and ON/OFF button simultaneously for 5 seconds the Demo
function is switched on.
The inside temperature of the appliance, measured by the air sensor, must be higher than +10°C because the
function may be activated. For the bi-compressors, the temperature must be higher than +10°C both in the
refrigerator and the freezer compartment.
The display board (VB) operates and shows a temperature of +5°C which flashes at a low frequency in the
refrigerator compartment display (4 seconds on and 1 off) and of -18°C in the freezer compartment display (4
seconds on and 1 off).
The light switches on when the door opens, but the compressor remains always off.
To deactivate the Demo function it is necessary to unplug the appliance or to push the temperature decrease
button and ON/OFF button simultaneously for 5 seconds.

ERF2000 Functions of the electronic boards Rev. 01 19/30
4. ALARMS
4.1 Freezer compartment temperature alarm
When the temperature on the freezer display overcomes the pre-set limit (between –8°C and –12°C according to
the versions) the alarm switches on: the temperature alarm led and the display flash and the buzzer sounds.
If the alarm reset button is pushed, the buzzer stops sounding, the display shows the maximum reached
temperature for 5 seconds and the temperature alarm led continue to flash.
Only when the temperature falls below the pre-set limit also the temperature alarm led will switch off.
If the alarm condition stops automatically without pushing the alarm reset, the buzzer stops sounding but the
temperature alarm led and the display will flash.
Pushing the alarm reset button, the temperature alarm led stops flashing, while the display will show the
maximum reached temperature for 5 seconds.
When the appliance is installed for the first time and if the freezer compartment is warm, the temperature alarm
buzzer sounds and must be switched off by pushing the relative button.
4.2 Refrigerator compartment temperature alarm (optional)
Some models feature the refrigerator compartment temperature alarm which activates when the temperature in
the refrigerator compartment overcomes the pre-set limit (between +11°C and +15°C according to the versions).
At the end of the Holiday function, the temperature alarm will be switched on with a two-hour delay.
4.3 Door open alarm (optional)
In some models the open door alarm is featured ( see the user manual of the specific model! ).
The open door alarm can be activated by a sensor (reed-element) placed on the display board (VB) which
detects the presence of a magnet placed on the refrigerator door or by a switch.
As the picture shows, the magnet can be replaced only in the built-in models (in the Free-Standing models the
magnet is foamed inside the door, therefore it cannot be replaced)

ERF2000 Functions of the electronic boards Rev. 01 20/30
The switching on times of the alarm are:
-Freezer door: 80 seconds;
-Refrigerator door: 5 minutes.
4.4 Electronic boards incompatibility alarm
If the display shows the letter Eafter the replacement of an electronic board (display or power), it means that
there is an incompatibility between the electronic boards and the appliance cannot operate.
To solve the problem, it is necessary to verify the spare part nos. of the electronic boards.
4.5 Eeprom error alarm
If the display shows the letter P, it means that one or more electronic boards are faulty in writing/reading the
Eeprom parameters) and the appliance cannot operate.
To solve the problem, it is necessary to replace the electronic boards (power and display).