AEG Electronics / Power Supply Fault (Alternate Code Set)

Dishwasher displays F9 and may stop with water inside or behave erratically.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Internal power supply failure on PCB, Loose mains connections, Damaged main control board on AEG dishwasher

Safety first: Unplug the dishwasher before any inspection.

Check mains connection: Ensure the power cord and plug are intact and the wall socket is functioning correctly.
Inspect internal connections (advanced): Remove the kick plate and door panel to check for loose or burnt connectors on the main PCB.
Board replacement: If there are signs of burning or if F9 persists, the main control board likely needs replacement by a professional.

Professional Required 5/5

Main Control Board

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