Display shows E6 and the brush motor does not rotate, although suction may still work.

Safety first: Unplug the carpet cleaner before accessing the brush head.

• Inspect brush roll for obstructions: Turn the unit over and remove the bottom plate or brush cover. Cut away hair, threads, and debris wrapped around the brush roll and end caps.
• Check the drive belt: Many AEG carpet cleaners use a rubber or toothed belt between the motor and brush roll. Inspect for breakage, stretching, or glazing. Replace the belt if damaged or loose.
• Spin the brush manually: With the belt removed, rotate the brush roll by hand. It should spin freely. If it binds or feels rough, the brush bearings or end caps may be worn and should be replaced.
• Test the brush motor: Access the brush motor and disconnect its wiring. Measure resistance across the motor terminals. An open circuit indicates a failed motor. If accessible, briefly power the motor with a low-voltage DC supply (if specified) to confirm operation.
• Check motor driver circuit: If the motor and belt are good but E6 persists, inspect the brush motor driver components on the main PCB for burnt marks. Replacement of the PCB may be required.

Do not operate the unit with the brush jammed; this can damage the motor and control board.