The AEG FAVORIT 80820 Dishwasher has some known problems that occur often. Here are some easy to do solutions for the problems or error codes your AEG might be giving you.
The door of the dishwasher is open.
The FILTER indicator illuminates at regular intervals to remind you to check and clean the filter in the dishwasher.
There is a water-related issue or another fault that can be rectified.
No water is running into the dishwasher.
The sink outlet is blocked or there is an issue with water drainage.
The middle spray arm is jammed.
The anti-flood system has been activated due to water leakage.