E11 is displayed and the machine indicates a drip tray or waste container error.

Safety first: Unplug the machine before reaching into the drip tray area.

• Empty and clean tray: Remove the Kenwood drip tray and used coffee grounds container. Empty and wash them with warm soapy water, then dry thoroughly.
• Check float indicator: Some trays have a red float that rises when full. Ensure it moves freely and is not stuck in the up position.
• Clean sensor area: Wipe the area where the tray slides in, including any small plastic tabs or windows that may be used by an optical sensor. Remove coffee residues and moisture.
• Reinsert firmly: Slide the tray and grounds container back in until they are fully seated. The machine may not detect them if they are slightly out of position.
• If E11 persists: The tray presence switch or sensor may be defective and will need replacement by a technician.