Electrolux AND42391X, END42391W, S75428DT, RND42391W, RND42391S Service Manual

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SERVICE MANUAL
REFRIGERATION
© Electrolux Home Products S.p.A.
Spares Operations Italy Corso lino Zanussi, 30 I - 33080 Porcia (PN)
Publication no.
599 38 97-89
EN
REFRIGERATORS
COMBI TOP NO FROST
PARTIAL with ERF550
electronic
FACTORY: ZS
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CONTENT
1 INTRODUCTION ....................................................................................................................................... 3
2 AIR CIRCULATION.................................................................................................................................... 6
3 REFRIGERATION CIRCUIT.................... .... ............................................. ... .............................................. 7
4 ELECTRIC WIRING................................................................................................................................... 8
5 COMPONENTS....................................................................................................................................... 10
5.1 Controls on air box...................... ... ... .... ... ... ... ... .... ... ... ... .... ... ........................................................... 10
5.2 Electronic board............................. ... .... ... ... ... ... .... ............................................. ... ........................... 10
5.2.1 Power and display board ERF550.......................................................................................... 11
5.3 Cooler compartment........................................................................................................................ 13
5.3.1 Temperature sensor ............................................................................................................... 14
5.3.2 Air box..................................................................................................................................... 14
5.3.2.1 Air box fan .................................................................................................................... 15
5.3.2.2 Cooler door switch........................................................................................................ 15
5.4 Freezer compartment ...................................................................................................................... 16
5.4.1 Cold module fan...................................................................................................................... 17
5.4.2 Defrosting heater.................................................................................................................... 17
5.4.3 Thermal switches.................................................................................................................... 17
5.5 Compressor compartment ............................................................................................................... 18
5.5.1 Connector box ........................................................................................................................ 18
6 MAIN FUNCTIONS.................................................................................................................................. 19
6.1 Normal............................................................................................................................................. 19
6.2 Normal with first switching on or power failure .................. ... ... ............................................. ... .... .... 19
6.3 Defrosting ........................................................................................................................................ 20
6.4 Flow chart for the defrosting management ...................................................................................... 22
6.5 Malfunctioning of cooler air temperature sensor.............................................................................. 23
7 ACCESSIBILITY...................................................................................................................................... 24
7.1 Freezer compartment ...................................................................................................................... 24
7.1.1 Battery evaporator.................................................................................................................. 24
7.1.1.1 Replacement of the thermal switches........................................................................... 25
7.2 Air box.............................................................................................................................................. 27
7.3 Compressor compartment ............................................................................................................... 28
8 TROUBLESHOOTING............................................................................................................................. 29
8.1 Water leakage inside the freezer compartment....... ... ... .................................................................. 29
8.2 Failed defrosting: ............................................................................................................................. 29
9 SPECIAL FUNCTIONS............................................................................................................................ 30
9.1 Manual defrosting ....... ... ... ... .... ... ... ... .... ............................................. ... ... ........................................ 30
10 DISPLAY SYMBOLS ............................................................................................................................... 31
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1 INTRODUCTION
This manual describes the 70 cm wide Combi Top PARTIAL NO FROST refrigerators with ERF550 electronic produced in the Susegana factory called ZS.
These models feature:
- partial No Frost (no frost freezer, static refrigerator)
- free standing
- single-compressor
- electronic control (electronic board ERF550)
- air box fan in the cooler compartment They are appliances (RI3406WL and RI3406W) with the following PNCs:
PNC MODEL BRAND 925589500 END42391W Electrolux 925589501 END42391X Electrolux 925589502 AND42391W Electrolux Arthur Martin 925589503 AND42391X Electrolux Arthur Martin 925589504 END42391X Electrolux 925589505 S75428DT AEG-Electrolux 925589507 RND42391W Rex-Electrolux 925589508 RND42391S Rex-Electrolux 925589509 RND42351X Rex-Electrolux 925589510 S75428DT1 AEG-Electrolux 925589511 PD431NFX Zoppas 925589512 S75428DT2 AEG-Electrolux 925589513 END42391S Electrolux 925587500 END32321W Electrolux 925587501 END32321X Electrolux 925587502 AND32321W Electrolux Arthur Martin 925587503 END32321X Electrolux 925587504 AND32321S Electrolux Arthur Martin 925587505 S75320DT AEG-Electrolux 925587506 S75328DT AEG-Electrolux 925587507 RND32351M Rex-Electrolux 925587508 RND32351Z Rex-Electrolux 925587509 RND32351Y Rex-Electrolux 925587510 S75328DT1 AEG-Electrolux 925587511 S75328DT2 AEG-Electrolux
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The controls of the appliance are inserted into the air box positioned in the cooler compartment. The power and control board is of ERF550 type. The appliance is switched on and off by simply connecting and disconnecting the plug. The appliance features only one compressor and it is not possible to switch off only one of the two compart-
ments. The temperatures regulation is the following:
from +8 to +2 °C for the cooler The temperature of the fridge compartment is displayed through the ligh ting up of the LEDs of the electronic
PCB. The appliance has the following functions:
Forced ventilation cooler compartment
PNC MODEL BRAND 925587512 END32321S Electrolux 925587513 END32321W Electrolux 925587522 RND32351M Rex-Electrolux 925587523 RND32351Z Rex-Electrolux 925587524 RND32351Y Rex-Electrolux
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The cooler compartment is provided with a manually actioned fan (ON/OFF button) inserted in the air box. The appliance consists of the following compartments:
freezer;
•cooler; The evaporating circuit consists of:
cold module (freezer compartment);
tube evaporator (cooler compa rtment).
Key: A. control panel on the air box B. cooler compartment C. cold module D. freezer compartment (freezer No Frost)
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2 AIR CIRCULATION
Unlike the NO FROST refrigerators, in the PARTIAL NO FROST type the cooler and freezer compartments are separated physically.
The battery evaporator cools only the freezer compartment, while the tube evaporator cools only the cooler compartment.
The cold produced by the battery evaporator in the freezer compartment is distributed by the fan C placed above the cold module.
AIR FLOW
In case of freezer door opening, the cold module fan does not stop.
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3 REFRIGERATION CIRCUIT
Key:
1. compressor;
2. anti-condensation coil;
3. condenser;
4. dehydrator filter;
5. capillary;
6. battery evaporator (freezer compartment);
7. tube evaporator (cooler compartment).
8. exchanger.
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4 ELECTRIC WIRING
(Check the specific diagram for each model!)
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Key:
COMP compressor FAN fan HEATER defrosting heater D.T.S. defrosting cut-out switch (+8 °C) S.T.S. safety thermal switch (+40 °C) ON on OFF off CLOSED closed OPENED opened A start of defrosting procedure B activation of defrosting heater C defrosting cut-out switch D end of defrosting procedure
a. yellow-green b. brown c. blue d. white e. black f. grey g. red
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5 COMPONENTS
5.1 Controls on air box
Key: A. temperature selection button
B. LED bar display C. cooler door button D. ACTION FREEZE symbol
5.2 Electronic board
The electronic board of the appliance consists of:
1. power and display board ERF550
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