Dishwasher displays E11 and may stop during the drying phase; fan noises may be absent.

Safety first: Disconnect power before removing the door panel or top cover.

• Listen for fan operation: During the drying phase, the fan should run with a noticeable airflow from the vent. If silent, suspect a fan issue.
• Inspect vent and duct: Locate the drying vent (often on the top or side of the door). Check for blockages by food residues or detergent buildup. Clean with a damp cloth.
• Access drying fan: Remove the inner door panel or top cover (depending on model) to access the drying fan assembly. Check that the fan blades are not obstructed and can spin freely.
• Check wiring: Ensure the fan connector is firmly attached and wires are not pinched or burnt.
• Test fan motor: With a multimeter, measure resistance across the fan motor terminals. An open circuit indicates a failed motor. If safe and you are experienced, you can briefly power the fan with an appropriate test voltage to confirm operation.
• Replace fan if necessary: Remove mounting screws, disconnect wiring, and install a new Grundig-compatible drying fan assembly.
• Reassemble and test: Refit the door panel, restore power, and run a drying cycle to confirm that E11 is cleared and the fan operates.