Electrolux ERF2500 User manual

SOE/TD - PR 1/8 599 73 16-18
SERVICE MANUAL
REFRIGERATION
ERF2500
2nd Generation
©ELECTROLUX ITALIA S.p.A.
Spares Operations Europe
Corso Lino Zanussi, 30
Publication no.
I - 33080 PORCIA /PN (ITALY) 599 73 16-18
Fax [phone]
Edition: 2010-09
EN

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TABLE OF CONTENTS
1Purpose 3
2Precautions 3
3Generalcharacteristics 4
4ServiceMode 5
4.1 Service Mode Activation 5
4.2 Component test 5
4.3 User Interface visual test 5
4.4 AC output test 6
4.5 Digital output test 6
4.6Dampertest 7
4.7 Digital input test 7
4.8 Temperature probe test 7
4.9 Software and Parameters 8
4.10Lifetimedisplay 8
4.11 Final phase 8
REVISIONS:
Revision Date Description
00 06/2010 Document creation
01 09/2010 Added variants on “Service Mode” activation

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1 PURPOSE
The purpose of this manual is to provide service personnel (who already have the basic knowledge
necessary for repairing refrigerators) with information on appliances equipped with the ERF2500 electronic
control system.
This Manual describes:
•User Interfaces that could be connected with
•Service Mode activation
•Tests that could be processed
2 PRECAUTIONS
Electrical appliances must be serviced only by qualified Service Engineers.
Always remove the plug from the power socket before touching internal
components.

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3 GENERAL CHARACTERISTICS
The main electronic can be connected to different types of user interfaces:
ERF2500
Main electronic
ERF803 LED + digits
ERF805 LCD
on door user interface
ERF809 LCD AEG user interface
ERF2500
Main electronic
ERF803 LED + digits
ERF805 LCD
on door user interface
ERF809 LCD AEG user interface
ERF810 LCD on door
user interface New Glass
ERF906 Australien LCD for Electrolux Kelvinator
ERF2500
Main electronic
ERF810 LCD on door
user interface New Glass
ERF906 Australien LCD for Electrolux Kelvinator
ERF2500
Main electronic

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4 SERVICE MODE
4.1 Service Mode Activation
The activation of the Service Mode is depends on the Software, which is loads on the electronic. There are
two variants of activation in the Service Mode.
Variant 1:
•Switch on the appliance
•Open the door
•Unplug the appliance
•Plug in the appliance
Variant 2:
•Switch on the appliance
Then valid for both:
•After 6 sec. pressing any push button („action“-key) except the On/Off-button for 5 sec.
oThe push button must be pressed in the timeframe from 6 to 16 sec, otherwise the Service Mode
is not activated.
The Service Mode activation is confirmed by a short beep from the buzzer device.
•Define the „action“-key choosing any push button except the On/Off-button. With the „action“-key, you
can activate the Service Mode and switch on and off the components.
•Define the „next“-key choosing any push button except the „action“-key. With the „next“-key, you can
change in a new test-phase.
4.2 Component test
The component tests are different notified in the several phases on the user interface.
All LEDs on or off ÆERF803 LED + digits
„SUPER FREEZING“-sign on or off ÆERF805 LCD on door
„FROSTMATIC“ word on or off ÆERF809 LCD AEG
On LCD on or off ÆERF810 LCD on door with New Glass
On LCD on or off ÆERF906 AUS LCD for Electrolux Kelvinator
4.3 User Interface visual test
Depending on the version of the appliance, all notification on the display and LEDs are switched on.
Pressing the push button „next“.
All notifications on the display and LEDs are switched off. The push button „action“ is not used in these
phase.
Pressing the push button „next“ again to goes in the next phase.

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4.4 AC output test
Are defined to be tested every AC component connected to the electronic. There are 5 ACS Triacs on the
electronic for only 5 components to test. On the display is notified the index of component. When the Service
Mode starts, all components are switched off.
Pressing the push button „next“, you actived the next component.
Pressing the push button „action“ to switched on and off the component.
Pressing the push button „next“ again to goes in the next phase.
4.5 Digital output test
Are defined to be tested every digital output of components connected to the electronic. On the display is
notified the index of the component. When the Service Mode starts, all components are switched off.
Pressing the push button „next“, you actived the next component.

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Pressing the push button „action“ to switched on and off the component.
Pressing the push button „next“ again to goes in the next phase.
4.6 Damper test
When the Service Mode starts, the damper is closed.
On the display is notified the index of the component.
LED on: damper is open
LED off: damper is closed
Pressing the push button „action“ the damper is open and closed.
Pressing the push button „next“ again to goes in the next phase.
4.7 Digital input test
Are defined to be tested every digital input of components connected to the electronic.
On the display is notified the index of the component.
LED on: Input is open
LED off: Input is closed
Pressing the push button „next“, you active the next component.
The push button „action“ is not used in these phases.
Pressing the push button „next“ again to goes in the next phase.
4.8 Temperature probe test

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Are defined to be tested every temperature probe connected to the electronic.
If the sensor related to the probe detects an acceptable value of temperature:
The display is notified the index.
If the sensor has an interrupt:
The display is notifying and blinking the current temperature index and message failure „Er“.
Press the push button „next“, to activate the next component.
The push button „action“ is not used in these phases.
Pressing the push button „next“ again to goes in the next phase
4.9 Software and Parameters
All codes of software and parameters are notified on the display.
The digits shows letter by letter. The digits shows each character in second steps and a short beep from the
buzzer.
Between two different codes a bar is showed on digits for one second.
The push button „action“ is not used in these phases.
Pressing the push button „next“ again to goes in the next phase
4.10 Life time display
The maximum value can be notified 9999 days. Each number is notified on the display (starting from Most
Significant) if you pressing „next“ push button, a short beep from the buzzer device and showing the next
digit.
Pressing the push button „next“ again to goes in the next phase.
4.11 Final phase
On the display is notified a time counter in second steps the number 0 to 99.
To return to the normal mode you have to press for 5 seconds the „action“ push button which made start the
Service mode.