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© ELECTROLUX ZANUSSI S.p.A.
Spares Operations Italy
Corso Lino Zanussi, 30
I - 33080 PORCIA / PN (ITALY)
Fax +39 0434 394096
Revision: 01 (250108)
PB = POWER BOARD
VB = DISPLAY BOARD
Publication no.
599 35 61-03
021218
ITZ/SERVICE/AA
SERVICE MANUAL
REFRIGERATION
ERF2000
Functions of the
electronic
boards

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Table of Contents

   Also See for Electrolux ERF2000

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   Summary of Contents for Electrolux ERF2000

  • Page 1 SERVICE MANUAL REFRIGERATION PB = POWER BOARD VB = DISPLAY BOARD ERF2000 © ELECTROLUX ZANUSSI S.p.A. Publication no. Spares Operations Italy 599 35 61-03 Functions of the Corso Lino Zanussi, 30 021218 electronic I - 33080 PORCIA / PN (ITALY)
  • Page 2 ERF2000 Functions of the electronic boards Rev. 01 2/30...
  • Page 3: Table Of Contents

    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 3/30...
  • Page 4 ERF2000 Functions of the electronic boards Rev. 01 4/30...
  • Page 5: Introduction

    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.
  • Page 6 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 6/30...
  • Page 7 NTC sensor; LD4A; LD6A; LD7A; 156 FZ room NTC sensor; SW1; 186 FZ room NTC sensor; SW1; 226 FZ room NTC sensor; SW1; FZ MAXI MA room NTC sensor; FZ STD MA room NTC sensor; ERF2000 Functions of the electronic boards Rev. 01 7/30...
  • Page 8 LD5 e DISP2=red; D3 1C LD5 e DISP2=red; D3 1C LD5 e DISP2=green; LD6=yellow; D3 1C LD5 e DISP2=green; LD6=yellow; D3 1C ALFA 1C ALFA 1C ALFA 1C ALFA 1C ALFA 1C ERF2000 Functions of the electronic boards Rev. 01 8/30...
  • Page 9: Pictures

    GTH1 = FREEZER COMPRESSOR TRIAC; GTH2 = REFRIGERATOR COMPRESSOR TRIAC; GTH3 = LAMP TRIAC; GTH4 = FAN TRIAC; = OVERVOLTAGE PROTECTION; FUSE = GENERIC PROTECTION; = TRANSFORMER; = BUZZER; µC = MICRO-CHECKER; ERF2000 Functions of the electronic boards Rev. 01 9/30...
  • Page 10: Alfa 2c

    = FREEZER “SUPER” BUTTON; SW10 = ALARM RESET BUTTON; DISP1 = REFRIGERATOR DISPLAY; DISP2 = FREEZER DISPLAY; = REFRIGERATOR “SUPER COOLING” LED; = SYMBOL - LED; = FREEZER SUPER LED; = ALARM LED; ERF2000 Functions of the electronic boards Rev. 01 10/30...
  • Page 11: Bi 1c

    = TEMPERATURE INCREASE BUTTON; = FREEZER “SUPER” BUTTON; = ALARM RESET BUTTON; = REED ELEMENT; DGT1 = DISPLAY; = SYMBOL - LED; = ALARM LED; = FROSTMATIC LED; = ON/OFF LED; ERF2000 Functions of the electronic boards Rev. 01 11/30...
  • Page 12: Bi 2c

    DGT1 = REFRIGERATOR DISPLAY; DGT2 = FREEZERDISPLAY; = FREEZER “SUPER” LED; = REFRIGERATOR FROSTMATIC LED; = ALARM LED; = SYMBOL + LED; = REFRIGERATOR ON/OFF LED; = LED SYMBOL -; = FREEZER ON/OFF LED; ERF2000 Functions of the electronic boards Rev. 01 12/30...
  • Page 13: Delta 2c

    DISP1 = REFRIGERATOR DISPLAY; DISP2 = FREEZER DISPLAY; = REFRIGERATOR ON/OFF LED; = SYMBOL + LED; = FREEZER “SUPER” LED; = SYMBOL - LED; = REFRIGERATOR FROSTMATIC LED; = ALARM LED; ERF2000 Functions of the electronic boards Rev. 01 13/30...
  • Page 14: D3 1c

    SW10 = ALARM RESET BUTTON; DISP2 = FREEZER DISPLAY; LD4A/B = FREEZER ON/OFF LED; = SYMBOL - LED; LD6/6B = SUPER / RESET ALARM LED; LD6A = “SUPER” LED; LD7/7A = ALARM RESET LED; ERF2000 Functions of the electronic boards Rev. 01 14/30...
  • Page 15: Alfa 1c

    = FREEZER TEMPERATURE DECREASE BUTTON; = FREEZER “SUPER” BUTTON; SW10 = ALARM RESET BUTTON; DISP1 = REFRIGERATOR DISPLAY; DISP2 = FREEZER DISPLAY; = SYMBOL - LED; = FREEZER “SUPER” LED; = ALARM LED; ERF2000 Functions of the electronic boards Rev. 01 15/30...
  • Page 16: Control Functions

    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 16/30...
  • Page 17: Freezer Compartment Display

    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”...
  • Page 18: Super Cooling Function Of The Refrigerator

    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 18/30...
  • Page 19: Alarms

    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 19/30...
  • Page 20: Electronic Boards Incompatibility 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). ERF2000 Functions of the electronic boards Rev. 01 20/30...
  • Page 21: Ntc-sensors Fault

    At extreme temperatures, alarm levels may be activated even if the sensors are not faulty. The faulty codes for temperatures higher than + 39°C and lower than - 39°C must not be considered. ERF2000 Functions of the electronic boards Rev. 01 21/30...
  • Page 22 The NTC sensors have the following temperature-resistance characteristic: ERF2000 Functions of the electronic boards Rev. 01 22/30...
  • Page 23: Display Symbols

    "1" – "9" flashing light: It appears during the temperature setting operation. It disappears 5 seconds after the end of the temperature setting (some Electrolux models). "-" steady light: It indicates that the refrigerator temperature is higher than 9°C and the display is single.
  • Page 24 It indicates incompatibility between the electronic boards. Solution: check the part nos. of the electronic boards. “P” steady light: It indicates an Eeprom error (wrong or not readable parameters). Solution: replace both electronic boards (power and display). ERF2000 Functions of the electronic boards Rev. 01 24/30...
  • Page 25: Special Functions

    The display shows the last 4 digits of the EEPROM code alternated by a short signal of the buzzer. The last displayed digit is not followed by a short signal. The display switches off and the buzzer sounds with a long signal. ERF2000 Functions of the electronic boards Rev. 01 25/30...
  • Page 26: Eeprom Error Function

    Super button within 1 min after the switching on (the Super button must be switched off). If an EEPROM error occurs the buzzer sounds with a long signal (5 seconds). ERF2000 Functions of the electronic boards Rev. 01 26/30...
  • Page 27: Fast Guide To The Special Functions

    Demo temperature repeat the freezer compartment -18°C at low frequency; by opening the door the light On/Off button Mode switches on; compressor always Off higher than operation of for 5 sec 10°C activation ERF2000 Functions of the electronic boards 27/30...
  • Page 28: Versions

    In these models it is possible to activate the Quick Chill function by pressing the relative button; with this mode the fan functions continuously, the appliance operates with a set temperature of 2°C and the display shows the letter “C”. ERF2000 Functions of the electronic boards 28/30...
  • Page 29: Effect On The Loads Of The Door Opening In Dme (dynamic Mini Evaporator) Appliances

    8.2.3 Effect on the loads of the door opening in DME (Dynamic Mini Evaporator) appliances When the door is opened it occurs as follows: The fan is immediately stopped; If the door remains open for more than a minute, the compressor stops. ERF2000 Functions of the electronic boards Rev. 01 29/30...
  • Page 30: Appendix A

    Appendix A Revisions REVISION DATE DESCRIPTION 10/2007 Document creation 01/2008 Added symbol of evaporator sensor faulty in chapters 5 and 6 ERF2000 Functions of the electronic boards Rev. 01 30/30...

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