Machine makes loud banging or knocking noises during brewing; brew group movement sounds harsh.
Safety Warning
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
How to Fix / Troubleshooting
Safety first: Turn off, unplug, and allow the machine to cool before removing the brew group.
Step-by-step checks:
- Remove and clean brew group: Rinse thoroughly and move the piston and lever to ensure free movement.
- Lubricate: Apply food-grade silicone grease to the side rails, piston seals, and contact points as recommended by Saeco.
- Clean interior: Use a brush and vacuum to remove coffee residues from the brew group compartment and drive area.
- Reinsert correctly: Ensure the brew group is in the neutral position and fully seated.
When to call a technician: If knocking persists, the drive gears or motor may be worn or misaligned and should be serviced professionally.
Repair Difficulty
Required Part
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