The AEG FAVORIT 78400 VI 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 appliance has a malfunction.
The appliance is unable to fill with water, possibly due to a closed water tap or other issue.
The appliance is unable to drain water, which may be due to a clogged sink spigot or a kinked drain hose.
The anti-flood device has been activated due to water leakages in the appliance.
The programme is completed, indicated by a green light beam on the floor below the appliance door.
The salt indicator is on when the appliance requires dishwasher salt for optimal performance.
The rinse aid indicator is on when the appliance needs rinse aid for better drying results.