AEG OKO FAVORIT 80800 User manual

SERVICE MANUAL
DISHWASHER
Favorit 80800
Produced by Electrolux Technical Department

INTRODUCTION
The Favorit 80800 is a free standing, 60cm dishwasher from the Nuremburg
Factory in Germany.
Features:
-AAA energy rating
-45db wash noise decibel rating
Loading capacity of up to 12 place settings
Horizontal cutlery basket on top of the upper basket.
Water load: 4.3 litres per fill
8 programs: Pre wash, Intensive 70º, Normal 65º, Auto 65º,
Auto BIO 50º, Normal BIO 50º, Energy Save 50º, Quick 40º
The Programs are selected using the push buttons on the control panel
The program start can be delayed by up to 19 hours .
Digital display showing: Program run time, Delay time, Softener setting, Fault
codes.
Recognition of the middle spray arm ( under upper basket )not rotating.
At the end of the program the middle spray arm stops at the same position, 220º,
to ensure no water left in the arm will run onto the dry crocks.
Turbo fan drying
Interior light. ( operates when the door is open )
3 spray arms: 1 in the base, 1 under the upper basket and 1 in the roof of the tub.
This ceiling spray arm ensures good wash results to the cutlery in the horizontal
cutlery basket on the upper basket.
Separate wash and drain pumps

The Control Panel
On the left of the control panel are the ON/OFF and Program selection buttons.
These buttons are also used to perform certain functions:
Adjusting the water softener setting
Adding or deleting an audible signal to indicate that a wash program has
finished.
Starting the Test program
Running the individual component check
Showing the fault code in the memory
Cancelling of the fault codes in the memory
To the right of the door handle is the multi-display which shows:
The run time of the selected program
The setting of the water softener
If the end of program tone is on or off
The length of time set for the program delay start
Fault codes
Above the multi-display is the button for setting the program start delay.
To the right of the multi-display are the program phase indicators. When a
program is first selected all the phase indicators are illuminated. Once the pro-
gram starts only the current program step will be indicated by the corresponding
lamp.
To the left of the control panel are the warning lamps which will tell the customer:
Refill up the Salt
Refill the Rinse aid
The Water is not entering the machine (Tap?)
Clean the Filter
The Door is open
The middle spray arm is not rotating

Setting the Water Softener
The dishwasher must be switched off.
Press and hold the Auto 65º and the Auto Bio 50ºbuttons.
Press the ON/OFF button.
Both the Auto 65ºand the Auto Bio 50ºwill flash and the buttons can be released.
Press the Auto Bio 50ºbutton and the softener setting will be displayed in the
multi-display.
The softener has 9 settings and every time the Auto Bio 50ºbutton is pushed the
displayed setting is increased by 1.
Once the correct setting has been made press the ON/OFF button to switch the
machine off.
The new setting will now be saved.
The water hardness is shown in the customers handbook in German degrees and
Parts per million
Setting the End of Program audible signal
Press and hold the Auto 65ºand the Auto Bio 50ºbuttons.
Press the ON/OFF button. (the two program lamps will flash)
Pushing the Auto 65ºbutton will indicate the current setting in the multi-display.
Pressing the Auto 65ºbutton again will change the setting and indicate it in the
multi-display.
b0 = audible signal off bI = audible signal on
Once the desired setting has been selected, switch off the machine.

Failure of middle spray arm
The middle spray arm is monitored by a Hall (magnetic) sensor situated in the
inner door panel.
This sensor is actioned by a very weak magnet in one end of the middle spray
arm.
As the magnet at the end of the spray arm passes the Hall sensor a voltage of
4.5 volts is generated which is monitored at the electronic.
If the electronic does not detect 4 revolutions in 40 seconds the spray arm LED
illuminates and the buzzer sounds.
Hall sensor for spray arm

The circulation pump, wash and heating
The circulation pump is driven by a single phase asynchronous motor with a 4mF
Capacitor connected to the start winding.
Different speeds are used during the wash cycle, (depending upon which part of
the program is being performed).
These speeds are controlled by a Tachometric generator fitted on the end of the
motor.
During parts of the program a pulsed wash action is used, eg, (last hot rinse).
This pulsed wash action runs:
4 seconds at 1600 rpm
0.8 seconds at 2800rpm
The diverter valve allows the water to be alternated between the upper spray arm
and the bottom + ceiling spray arms.
During the heating steps the water is only supplied to the upper spray arm.
Circulation pump and
Diverter valve
The Heater
A 2100 watt tubular heater is situated in the base of the appliance.
During the heating steps the water is directed only to the upper spray arm.
The resistance is 25

The Turbidity Sensor
The machine has 2 automatic programs: Auto 65ºand Auto BIO 50º.
During these programs a ‘Turbidity sensor’is used to measure the clarity of the
water.
This is done by passing a beam of light through the water.
The beam of light produces a voltage which is measured and this measurement
decides the clarity of the water.
The first of these measurements is carried out during the Pre wash.
If the Pre-wash water is found to be dirty the machine will pump the water out at
the end of this phase. It will refill with clean water for the main wash.
If, however the Pre-wash water is found to be clean the machine will omit the
pump out at the end of the pre-wash and will use the same water for the main
wash.
This measurement also takes place during the first rinse.
If the water is found to be dirty, another rinse is added, however if the water is
clean only one rinse will be performed.
The Turbidity sensor is re-calibrated during the final rinse of each cycle.
Because engineers cannot test this part no values are given,
however, should the sensor fail a fault code of ‘C5’will be stored in the fault code
memory.
It’s unlikely that the customer will know if the Turbidity sensor is faulty as the
machine would always have a separate Pre-wash and main wash and would
always perform an extra rinse.
The sensor is found at the circulation pump end of the hose which feeds the
spray arm in the ceiling.
Turbidity sensor measuring clean water. Turbidity sensor measuring dirty water.

Fuzzy Detection of the load
During the heating step in the main wash two measurements are taken to
determine if the machine is washing a full or half load.
The first measurement takes place 13 minutes after the start of the heating step
and the second measurement is taken 10 minutes later, (23 minutes into
heating).
If a half load is detected the following occurs:
Main wash time reduced by between 4 and 6 minutes, (depending on the
program).
No second rinse in the INTENSIVE 70ºprogram.
The rinses could be reduced by approximately 2 minutes.
The temperature of the last hot rinse reduced by 5º. ( This does not apply to
the Auto bio 50ºand the Normal bio 50ºprograms.
Programs with Fuzzy Detection of Full/Half load during heat step
Auto 65º, Auto Bio 50º, Intensive 70º, Normal 65º, Normal Bio 50º.

Cycle Fuzzy
Detection Turbidity
Sensor Pre- wash Main wash 1st rinse 2nd rinse Final rinse Drying
Intensive
70ºYes No 40º70ºCold Cold * 70ºFan
Normal
65ºYes No Cold 65ºCold No 70ºFan
Auto 65ºYes Yes Cold * * 65ºCold Cold * * 70ºFan
Normal
Bio 50ºYes No Cold 50ºCold No 65ºFan
Energy
save 50ºYes No Cold 55ºCold No 60ºFan
Auto Bio
50ºYes Yes Cold * * 50ºCold Cold * * 65ºFan
Quick
40ºNo No No 40ºCold No 55ºNo
Prewash No No Cold No No No No No
Program functions
* This function is dependant on Fuzzy logic load detection, ( see page 7 ).
* * These functions are dependent upon the Turbidity of the water.
A short 18 minute test program can be run to check all the machines
Components.
This program is selected in the following way.
The machine must be off and there must be no wash load
Press and hold the Auto 65ºand the Intensive 70ºbuttons.
Push the On/Off button
Press the Intensive 70ºbutton
The 18 minute test program will now run in the order shown on the
following page

Time / seconds level pump Circulation pump drying function
( ) = possible
action
variable To reset point on Pump out
10 on Pump out
8 Calibration of
turbidity
sensor
variable Filling to switch
point level Filling
variable To reset point on Pump out
20 on Pump out
variable Filling to switch
point level Filling
15 Filling (approx
1litre) Filling
5 (Dynamic filling)
Level controlled 2400 rpm (filling) / circulation
20 (Dynamic filling)
Level controlled 2800 rpm (filling / circulation)
4 pause
15 (Dynamic filling)
Level controlled 2800 rpm (filling) / circulation
4 pause
15 (Dynamic filling)
Level controlled 2800 rpm (filling) / circulation
variable (Dynamic filling)
Level controlled 2800 rpm (filling) / circulation
Diverter to upper
position
5 (Dynamic filling)
Level controlled 2800 rpm (filling) / circulation
Detergent disp’
Variable
(max 1200 sec) (dynamic filling) Level controlled to
50ºC or 1200 sec
2800 rpm (filling) /
circulation
heating
60 2800 rpm Circulation /
diverter
variable 2800 rpm Circulation
Diverter to upper
position
5 2000 rpm circulation
variable 2800 rpm Upper spray arm
stops at 220º
variable To reset point on Pump out
25 on Pump out
20 pause
15 on Pump out
210 on Regeneration if
necessary
variable To reset point on Pump out
25 on Pump out
Test Program

Test of individual components
With the machine switched off and no wash load.
Press and hold the Auto 65ºand the Normal 65ºbuttons.
Push the ON/OFF button.
The LEDs for the Auto 65ºand the Normal 65ºprograms will flash.
Push the Auto 65ºbutton.
Each individual componet will operate for 5 seconds in the following order.
1: Inlet valve
2: Regeneration valve
3: Circulation pump
4: Diverter valve
5: Drain pump
6: Turbo drying fan and flap
7: Detergent dispenser
After 2 minutes the test will automatically terminate.
Alternatively switch the machine off with the ON/OFF button.
Please Note: The heater is not operated during this test

Fault codes
Fault Fault
Code LEDs Audible Alarm Display Description Symptom
Communication
Error C0 Washing ——When no data can be received between input
module and main PCB
after 10 attempts
Program is stopped
until communications
are restored
Water tap C1 End Once LED
water Pressure switch level is not reached within
60 sec.
Selected program LED
flashes. Program is
stopped. Can be
re-started by pressing
program button.
Acoustic signal is inter-
rupted by opening the
door.
Drain pump C2 Drying Twice —If reset point of pressure
Switch is not reached
within 120 sec, cycle will
stop
Program LED flashes
program is stopped and
can continue by
pressing the program
button. Acoustic signal
is interrupted by the
door .
Aqua control
(float switch) C3 Drying End 3 times —Drain pump is working although it is not
selected by PCB
Program stops and
restarts automatically
once the fault is
rectified.
Acoustic signal is
interrupted by opening
the door.
—– C4 Final rinse —– —– —– —–
Turbidity sensor C5 Final rinse
end 5 times —– Turbidity signal can not re-calibrate Turbidity detected. cycle run is adapted
accordingly.
—– C6 Final rinse
drying —– —– —– —–
Heating C7 Final rinse
drying
End
7 times —– During heating temp has
not increased by 1.5 ºC
within 3 mins.
Cycle will continue to
the end without the
heating step.
NTC sensor C8 Rinsing 8 times —– NTC short circuit Cycle will continue to
the end without the
heating step.
Tacho C9 Rinsing
End 9 times —– With circulation pump running no tacho signal
is received by PCB for
2 sec.
Circulation pump driven
without control.
No heating will take
place.
This function will be
controlled in every step.

Fault Codes continued
TO CLEAR THE FAULT CODE:
The fault code will clear automatically when the dishwasher is turned off.
( but will re-appear if the fault is not repaired)
Fault Fault
Code LEDs Audible Alarm Display Description
Symptom
Circulation
Pump CA Rinsing Drying 10 times —– Tacho signals are detected but the
circulation pump should
not be running
Cycle will stop, water
continues until the
pressure switch is
made
Diverter
valve Cb Rinsing Drying
End
11 times —– (a) Diverter valve not
in required position
within 4.3 minuets.
(b) Diverter valve
changes position
without selection
from the PCB.
Cycle continues .
Heating steps will be
eliminated.
Program
Error with
Forming
variant
Cf Washing
End 15 times —– Fault within the electronics. No program selection possible On/Off-LED
Fault I/O
variant
(input/
Output)
—– —– —– —– Wrong I/O variant
program I/O component
does not match the
control component.
No program selection
possible On/Off-LED

Display and cancellation of fault code memory
To display fault codes in the memory:
Press and hold Auto 65 and Normal 65 program buttons.
Switch the machine on with the ON/OFF button.
The LEDs flash for the Auto 65 and the Normal 65 programs.
Push the Intensive 70 button.
The fault code will be displayed.
To cancel fault code in the memory:
Press and hold Auto 65 and Normal 65 program buttons.
Switch the machine on with the ON/OFF button.
The LEDs flash for the Auto 65 and the Normal 65 programs.
Press the Auto 65 program button.
The fault codes will be deleted.

Technical Specifications
Dimensions: 85cm x 60cm x 60cm
Place settings 12
Capacity in tub (water) 4.3 litres
Water pressure ( min / max) 1 / 10 Bar
Maximum power
————————————————————————————————————————————————
Drain pump:
Maximum height 100cm
Pumping rate 15 litres / minute
Power input 26 watts
Winding resistance 180
————————————————————————————————————————————————
Rinse aid dispenser:
Dosing 1.7–6.5 cm3
Resistance 1360
————————————————————————————————————————————————
Regeneration valve:
Resistance 3000
———————————————————————————————————————————————–
Water inlet valve:
Delivery rate 4 litres / minute
Winding resistance 3750 - 4000
————————————————————————————————————————————————
Heating element:
Power input 2100 watts
Resistance 25
Protector 98ºC ± 5º
Thermal fuse 260ºC
———————————————————————————————————————————————–
Circulation Pump:
Capacitor 4 F
Power input / output 100 watts / 50 watts
Speed 1600rpm - 2800rpm
Current input 0.6amps
Main winding resistance 50.5
Auxillary winding resistance 160
Tacho winding resistance 213
———————————————————————————————————————————————–
Diverter valve:
Rotary speed 0.5rpm
Resistance 9300
————————————————————————————————————————————————
Pressure switch:
Switch on / off fn = 65mm / 45mm fs = 114mm / 90
————————————————————————————————————————————————
Transformer:
Voltage, primary / secondary 230 volts / 11 volts
Power input, primary / secondary 70mA / 909mA
Resistance 415 / 1.95
———————————————————————————————————————————————–
Fan:
Resistor 740
Speed 2150rpm
———————————————————————————————————————————————–
Servo door lock:
Resistance 7500
Speed 2rpm
———————————————————————————————————————————————–

Technical specifications continued
The water softener settings
The water hardness shows the hardness before passing through the softener,
and the residual water hardness shows the hardness after the water has passed
through the softener.
The table shown below appears in the customer’s handbook.
ºd = German degrees
ppm = parts per million
* = factory setting

Technical Specifications, continued

Wiring Diagram

Wiring Plan

Legends