Display shows E06, brew unit does not move, and the machine may make a brief clicking sound.

Safety first: Turn off and unplug the machine before reaching inside the brew compartment.

Step-by-step:

• 1. Remove brew unit: Open the service door and carefully remove the Siemens brew unit. If it is stuck, do not force it; instead, consult the user manual for the emergency removal procedure.
• 2. Clean and lubricate: Rinse the brew unit thoroughly, remove coffee residues, and lightly lubricate the moving rails and pistons with food-grade silicone grease approved for coffee machines.
• 3. Check for foreign objects: Inspect the brew chamber area for loose beans, broken plastic pieces, or other obstructions that could block the drive.
• 4. Reset the drive (if supported): Some Siemens models allow a drive reset via the menu. With the brew unit removed, run the reset so the drive returns to its home position, then reinstall the brew unit.
• 5. Advanced inspection: If E06 persists, remove the side panel to access the brew drive motor and gear train. Check for cracked gears or a loose drive arm.
• 6. Professional repair: Replacement of the brew drive motor or gear set requires disassembly and correct alignment of the brew group. This is best performed by a Siemens technician.