Electrolux ZEBF249W, ZEBF250W, ZEBF262W, ER7926B, ZEBF290W Service Manual
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SERVICE MANUAL
REFRIGERATION
© ELECTROLUX ZANUSSI S.p.A. Publication no.
Spares Operations Italy 599 35 61-04
Corso Lino Zanussi, 30 021218
I - 33080 PORCIA / PN (ITALY) ITZ/SERVICE/AA
Fax +39 0434 394096
NOFROST
REFRIGERATORS
With external
electric wiring
NOFROST REFRIGERATORS WITH EXTERNAL ELECTRIC WIRING 2/25
NOFROST REFRIGERATORS WITH EXTERNAL ELECTRIC WIRING 3/25
TABLE OF CONTENTS
1. INTRODUCTION........................................................................................................................................................ 5
2. REFRIGERATION CIRCUIT ..................................................................................................................................... 9
3. ELECTRIC WIRING................................................................................................................................................. 10
3.1. R134A VERSION................................................................................................................................................... 10
3.2. R600A VERSION................................................................................................................................................... 11
4. FUNCTIONAL DIAGRAM ....................................................................................................................................... 12
4.1. R134A VERSION................................................................................................................................................... 12
4.2. R600A VERSION................................................................................................................................................... 13
5. OPERATION ............................................................................................................................................................ 14
5.1 NORMAL............................................................................................................................................................. 14
5.2 DEFROSTING .................................................................................................................................................... 15
6. COMPONENTS........................................................................................................................................................ 16
6.1 CONTROL PANEL : ........................................................................................................................................... 16
6.2 REFRIGERATOR COMPARTMENT :............................................................................................................... 16
6.3 FREEZER COMPARTMENT : ........................................................................................................................... 17
6.4 COMPRESSOR COMPARTMENT: .................................................................................................................. 18
7. ACCESSIBILITY ...................................................................................................................................................... 20
7.1. CONTROL PANEL ACCESSIBILITY ............................................................................................................... 20
7.2. REFRIGERATOR COMPARTMENT ACCESSIBILITY .................................................................................. 21
7.3. FREEZER COMPARTMENT ACCESSIBILITY............................................................................................... 22
8. TROUBLESHOOTING ............................................................................................................................................ 24
NOFROST REFRIGERATORS WITH EXTERNAL ELECTRIC WIRING 4/25
NOFROST REFRIGERATORS WITH EXTERNAL ELECTRIC WIRING 5/25
1. INTRODUCTION
This manual describes the NOFROST models with the modification of the electric wiring which is now external.
The connectors inside the freezer compartment have been removed, therefore, the electrical connections of the
evaporator battery have been carried out directly inside the terminal board of the electromechanical timer which
is placed in the compressor compartment. The electrical connections of the fan instead have been carried out
directly inside the terminal board of the compressor.
There are three basic models which differ from each other only for the volume:
260 litres (ex C9, pnc 925886…), 262 litres (ex C10, pnc 925887…) and 290 litres (ex C11, pnc 925888…).
The versions of the various models are R134a and R600a.
The modification is handled with the ELCs :
pnc Date Brand Model Refrigerating gas
92588660302 20021220 Tricity Bendix TB112FF R134a
92588665101 20021220 Zanussi ZX57/3W R600a
92588665301 20021220 Zanussi ZX57/3SI R600a
92588665601 20021224 Zanussi CZX165W R600a
92588665701 20030428 Zanussi CZX165SI R600a
92588666000 20030606
Zanussi-
Electrolux
ZEBF249W R600a
92588670000 20021220 Privileg
672.700
2/40032
R600a
92588670100 20030606
Zanussi-
Electrolux
CZC16/9FA R600a
92588670300 20030321
Zanussi-
Electrolux
ZEBF250W R600a
92588760103 20021220 Electrolux ER7626B R134a
92588765101 20021220 Zanussi ZX55/4W R600a
92588765301 20021224 Zanussi ZX55/4SI R600a
92588765500 20030425 Electrolux ER7626/1B R600a
92588770000 20030418
Zanussi-
Electrolux
ZEBF262W R600a
92588860104 20021220 Electrolux ER7926B R134a
92588865101 20021220 Zanussi ZX56/4W R600a
92588865301 20021220 Zanussi ZX56/4SI R600a
92588865500 20030425 Electrolux ER7926/1B R600a
92588870000 20021220 Privileg
672.694
7/40033
R600a
92588870100 20030418
Zanussi-
Electrolux
ZEBF290W R600a
92588870200 20030606
Zanussi-
Electrolux
ZEBF290SI R600a
NOFROST REFRIGERATORS WITH EXTERNAL ELECTRIC WIRING 6/25
The new evaporator batteries are not interchangeable with the old ones.
The evaporator batteries for the R134a version feature only one defrosting heater, while the evaporator batteries
for the R600a version feature two defrosting heaters connected in parallel for safety reasons of the product.
The thermal protections are connected in series to the defrosting heaters and are cabled together, therefore,
they are not interchangeable singularly. An assembly spare part no. is available in case of failure of a thermal
protector or of a defrosting heater.
NOFROST REFRIGERATORS WITH EXTERNAL ELECTRIC WIRING 7/25
The NOFROST refrigerators consist of a refrigerator compartment A and a freezer compartment B.
The cold produced by the battery-driven evaporator in the freezer compartment is then distributed through the
refrigerator and freezer compartment by the fan located above the battery.
NOFROST REFRIGERATORS WITH EXTERNAL ELECTRIC WIRING 8/25
REFRIGER AT O R COMPARTMENT (A)
The air is pushed by the fan down the foam duct at the bottom of the compartment: it enters by nozzle 1 and
comes out of nozzle 2. Manual flap C enables to regulate the flow of cold air and therefore the temperature
inside the compartment.
The thermostat bulb is located inside the flap and reacts both to the air temperature of the air coming out of
nozzle 2, and to the air temperature inside the refrigerator compartment.
The air returns to the air compartment through the foam duct at the bottom of the compartment, entering from
nozzle 3 and leaving from nozzle 4.
FREEZER COMPARTMENT (B)
The cold air is pushed into the compartment by the fan through the two nozzles 5 and 6. After circulating, the air
is rechannelled to the evaporator battery through opening 7, under the protection panel.
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