Electrolux Refrigerator, ERF2620, ZI918/9FFA Service Manual
SERVICE MANUAL
REFRIGERATION
© ELECTROLUX HOME PRODUCTS S.p.A. Publication no.
Spares Operations Italy 599 37 75-07
Corso Lino Zanussi, 30 060824
I - 33080 PORCIA / PN (ITALY) ITZ/SERVICE/AA
Fax +39 0434 394096
TOTAL
NO FROST
FIFTY
Sliding Door
FACTORY: ZS
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CONTENTS
1. INTRODUCTION..................................................................................................................................................5
2. AIR CIRCULATION..............................................................................................................................................8
3. REFRIGERATION CIRCUIT................................................................................................................................9
4. ELECTRIC WIRING ............................................................................................................... ........................... 10
5. COMPONENTS................................................................................................................................................. 12
5.1. Cooler compartment ................................................................................................................................... 12
5.1.a. Control panel............................................................................................................................................ 13
5.1.b. Electronic boards..................................................................................................................................... 14
5.1.c. Power board ERF2050............................................................................................................................. 15
5.1.d. Display board ERF2000........................................... .... ... .... .... .... ... .... .... .... ... .... .... .... ...............................17
5.1.e. Air flow regulator (damper) .................................................................... .................................. ................ 18
5.1.f. Cooler air temperature sensor..................................................................................................................19
5.2. Freezer compartment..................................................................................................................................20
5.2.a. Cold module............................................................................................................................................. 21
5.2.b. Cold module fan....................................................................................................................................... 21
5.2.c. Defrosting heater......................................................................................................................................22
5.2.d. Thermal switches....................................................................................... .............................................. 22
5.2.e. Freezer door switch ............................................. ............................................. .......................................22
5.2.f. Freezer air temperature sensor................................................................................................................ 23
5.2.g. Connection box........................................................................................................................................ 24
6. OPERATION ..................................................................................................................................................... 25
6.1. Normal......................................................................................................................................................... 25
6.2. Defrosting.................................................................................................................................................... 26
6.3. SUPER Function (rapid freezing)................................................................................................................ 27
6.4. SHOPPING Function (rapid cooling)..........................................................................................................27
6.5. Cooler compartment switching off............................................................................................................... 27
6.6. Malfunctioning of cooler temperature sensor.............................................................................................. 28
6.7. Malfunctioning of freezer temperature sensor............................................................................................ 29
7. ALARMS ........................................................................................................................................................... 30
7.1. Freezer compartment temperature alarm.................................................................... ... .... .... ..... ............... 30
8. ACCESSIBILITY TO COOLER COMPARTMENT ........................................................................................... 31
8.1. Air flow regulator (damper) .................................................................................. .......................................31
9. ACCESSIBILITY TO FREEZER COMPARTMENT.......................................................................................... 33
9.1. Battery evaporator ...................................................................................................................................... 33
10. TROUBLESHOOTING...................................................................................... ... .... .... ........ ........................... 36
10.1. Excessive ice formation on the battery :................................................................................................... 36
10.2. Failed defrosting: ............................................................................................................................. ......... 36
11. SERVICE MODE.............................................. ... .... .... .... ....... .... .... ... .... .... .... .... .... ....... .... ............................... 37
11.1. Starting SERVICE MODE....................................................................... .................................................. 37
11.2. Exiting SERVICE MODE........................................................................................................................... 37
11.3. Functions of the SERVICE MODE.................................................................. . ......................................... 37
12. DISPLAY SYMBOLS ............................................................................ .... .... .... .... ....... .... .... ........................... 39
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1. INTRODUCTION
This manual describes the TOTAL NO FROST refrigerators with Sliding Door system produced in the Susegana
factory called ZS.
These models feature:
- Total No Frost (freezer: no frost; cooler: no frost)
- Built-in
- Single-compressor
- Electronic control (electronic board ERF2050)
- LCD display (liquid crystal digit)
They are appliances (KBIN 260 IT SD) with the following PNCs:
PNC MODEL BRAND
92569770000 ERF2620 Electrolux
92569770100 ERF2620 Electrolux
92569770200 ZI918/9FFA Zanussi
The controls of the appliance are inserted in the higher part of the cooler compartment.
The power control board is ERF2050.
The user interface board is ERF2000 (LCD display)
The appliance is a single-compressor one, but it is possible to switch off only the cooler compartme nt through
the temperature regulation knob (position 0).
The temperature regulation is the following:
from +8 to +2 °C for the cooler
from -15 to -24 °C for the freezer
The appliance has the following functions:
rapid freezing
rapid cooling
freezer temperature alarm
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A
B
C
D
The appliance consists of the following compartments:
freezer;
cooler;
The evaporating system consists of:
battery cold module (freezer compartment);
Key:
A = control panel
B = cooler compartment
C = cold module
D = freezer compartment
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B
A
The temperature detection of the cooler compartment is carried out by 1 sensor:
cooler temperature sensor (located inside the air vent grid)
The temperature detection of the freezer compartment is carried out by 1 sensor:
freezer temperature sensor (located inside the freezer cell)
The defrosting of the battery evaporator is controlled by the electronic board through the te mperature detection
of the sensors and the detection of the door opening.
Key:
A = cooler temperature sensor
B = freezer temperature sensor
The temperature sensors A and B feature the foamed cable inside the cabinet, therefore they are not
replaceable.
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E
F
G
2. AIR CIRCULATION
Unlike in the PARTIAL NO FROST refrigerator, in the TOTAL type the cooler and the freezer communicate each
other, therefore the battery evaporator cools both compartments.
The cold produced by the battery evaporator in the freezer compartment is distributed by the F fan placed
behind the cold module.
Cooler compartment air flow:
the cold air is pushed by the fan into the foamed duct and exits from the air flo w
regulator (damper) E located in the rear part of the diffuser-lamp holder. The air returns in the freezer
compartment by means of some foamed ducts entering the air vent grids G.
Freezer compartment air flow:
the cold air is pushed into the compartment through the air screen and returns
into the cold module through the front air vent grid.
In case of opening of the freezer or cooler door, the fan stops.
To simulate the door closet use a magnet and put it next to the reed element placed on the
intermediate crosspiece or to the reed element placed on the electronic board.
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3. REFRIGERATION CIRCUIT
Key:
1. compressor;
2. condenser;
3. anti-condensation coil;
4. dehydrator filter;
5. capillary;
6. battery evaporator (freezer compartment);
7. exchanger.
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4. ELECTRIC WIRING
( Check the specific diagram for each model ! )
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Key:
3. compressor
5. motor protector
9. defrosting heater
13. lamp
16. freezer door switch
24. battery evaporator fan
41. electronic board ERF 2050
52. air flow regulator (damper)
56. cooler air temperature sensor
57. freezer air temperature sensor
a. yellow-green;
b. brown;
c. blue;
d. white;
e. black;
f. grey;
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B
C
A
D
5. COMPONENTS
5.1. Cooler compartment
Key:
A. control panel
B. reed element for cooler door switch
C. cooler air temperature sensor
D. air flow regulator (damper)
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