SERVICE MANUAL
REFRIGERATION
© ELECTROLUX ZANUSSI S.p.A. Publication No.
Spares Operations Italy 599 35 31-70
Corso Lino Zanussi, 30 020708
I - 33080 PORCIA / PN (ITALY) ITZ/SERVICE/AA
Fax +39 0434 394096
NOFROST
UNDERCOUNTER
FREEZERS
WITH ELECTRONIC
TIMER
NOFROST UNDERCOUNTER FREEZERS WITH ELECTRONIC TIMER
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NOFROST UNDERCOUNTER FREEZERS WITH ELECTRONIC TIMER
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TABLE OF CONTENTS
1. INTRODUCTION........................................................................................................................................................ 5
2. REFRIGERATION CIRCUIT ..................................................................................................................................... 6
3. ELECTRIC WIRING ................................................................................................................................................... 7
4. FUNCTIONAL DIAGRAM ......................................................................................................................................... 8
5. OPERATION .............................................................................................................................................................. 9
5.1 NORMAL............................................................................................................................................................... 9
5.2 NORMAL WITH FIRST SWITCHING ON OR POWER FAILURE ................................................................... 10
5.3 SUPER FUNCTION............................................................................................................................................ 10
5.4 DEFROSTING .................................................................................................................................................... 11
6. ALARMS................................................................................................................................................................... 12
6.1 TEMPERATURE AL ARM (OPTIONAL) ............................................................................................................ 12
6.2 DOOR OPEN ALARM (OPTIONAL).................................................................................................................. 12
6.3 DEFROSTING HEATER ALAR M (OPTIONAL)................................................................................................ 12
6.4 NTC SENSOR MALFUNCTIONING ALARM (OPTIONAL) ............................................................................. 13
7. COMPONENTS........................................................................................................................................................ 14
7.1 CONTROL PANEL : ........................................................................................................................................... 14
7.2 FREEZER COMPARTMENT : ........................................................................................................................... 14
7.3 RUBBER VALVE ................................................................................................................................................ 15
7.4 ELECTRONIC BOARD ...................................................................................................................................... 15
8. ACCESSIBILITY ...................................................................................................................................................... 17
8.1. ACCESS TO CONTROL PANEL ...................................................................................................................... 17
8.2. ACCESS TO FREEZER COMPARTMENT ..................................................................................................... 18
9. TROUBLESHOOTING ............................................................................................................................................ 20
9.1 DRAIN CIRCUIT: ................................................................................................................................................ 20
9.2 EXCESSIVE ICE FORMATION ON THE BATTERY:....................................................................................... 20
9.3 MANUAL DEFROSTING PROCEDURE........................................................................................................... 20
NOFROST UNDERCOUNTER FREEZERS WITH ELECTRONIC TIMER
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NOFROST UNDERCOUNTER FREEZERS WITH ELECTRONIC TIMER
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1. INTRODUCTION
This manual describes the NOFROST UNDERCOUNTERS FREEZERS WITH ELECTRONIC T IMER.
These models differ from the previous (see SM 599348193) as they do not feature the electromechanical timer
because an electronic timer has been incorporated in the control and power board.
The basic model is a freezer of an 80 litre net capacity produced with electronic thermostat in versions:
- A class;
- B class.
The NOFROST UNDERCOUNTERS consists of a single freezer compartment.
The cold, produced by the battery evaporator in the freezer compartment, is then distributed by the fan placed
over the battery.
FREEZER COMPARTMENT
The fan makes the cold air circulate in the compartment: it enters by nozzle 1 and comes out of nozzle 2 passing
through the evaporator battery. The NTC sensor is located inside (pos. A) and detects the air temperature in the
compartment.
NOFROST UNDERCOUNTER FREEZERS WITH ELECTRONIC TIMER
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2. REFRIGERATION CIRCUIT
Legend:
1. compressor
2. condenser
3. filter
4. capillary
5. heat exchanger
6. battery evaporator
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