AEG Dishwashers - Page 6 - Recent Questions, Troubleshooting & Support

There is a problem with drainage. Check the drain line connected to the disposal or peatrap. Make sure it is not plugged. Otherwise you can disconnect the drain line and put a wet vac on it to try to clear the hose

i20 error code means: Water is not pumped off and could be:

• Fault with discharge pump

• Discharge pump deenergized (faulty wiring or no activation by electronics)

• Obstruction/blocking (filters in the appliance, discharge opening in discharge trough, discharge pump, discharge hose, siphon, cover plug at siphon connection not removed during first commissioning)

• Discharge hose bent or connection height above 100cm

• Ball valve in discharge trough glued / blocked (discharge pump does not aerate)

or water level inside appliance is not detected and than could be:

• Pressure controller faulty

• Pressure controller hose obstructed or bent

• Insulation fault with heating element

Dado

i90 error code means Check sum (model programming) MCF or Check sum CCF not OK, or in other words faulty electronics. Dado

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Electronic is protected against short circuit throught out VDR - voltage dependent resistor which is located on the electronics. Unfortunately, when this happens usually get hurt some other component part or burn printed circuit boards. Any intervention on electronics requires qualified person otherwise there is the risk of fire or electric shock. Dado

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Heater, 230V./2000W.-d.32mm. The heating element, which is encased inside a tube, is used to heat the washing water. The heating element is not activated during the drying phase. Inserted into the delivery side of the washing pump and coupled with the duct which directs water to the upper spray arm. Built-in safety devices: Two thermostats First thermostat: auto-reset bi-metal thermostat calibrated to 98°C and connected in series to one branch of the heating element. Second thermostat: manual-reset fuse calibrated to 206°C and connected in series to the second branch of the heating element. If this fuse intervenes, the heating element is disconnected definitively. Dado

It is difficult to answer the question with so few symptoms. The question would be whether the pump stops when you open the door? If not, then should checked for correct door switch, otherwise I think you need to replace the main board. If you see diagram bellow you can see that the motor is driven by the triac which is probable remain in the open position and constantly power supply motor. Some model has relay which switch between wash motor and drain motor and there is possible that relay stuck and motor also running constantly. Dado

This control procedure is in operation only during the cold wash and heating phases.

• Once the pressure switch has closed in the "full" position, it must remain "full" until the subsequent drain phase; if the pressure switch signals "empty", the fill solenoid is activated for a period equivalent to the period of aperture of the pressure switch.

• The maximum aperture time for the pressure switch (T) during the entire phase is 60 seconds; if this period is exceeded, an alarm condition is generated.

Alarm: AL5 Possible causes:

1. Dishes upside down
2. Central filter clogged
3. Siphon effect created in drain hose
4. Leakage in sump - pressure switch tube.

Dado